FieldNextIf

Inheritance: java.lang.Object, com.aspose.words.Field

public class FieldNextIf extends Field

Implements the NEXTIF field.

To learn more, visit the Working with Fields documentation article.

Remarks:

Compares the values designated by the expressions getLeftExpression() / setLeftExpression(java.lang.String) and getRightExpression() / setRightExpression(java.lang.String) in comparison using the operator designated by getComparisonOperator() / setComparisonOperator(java.lang.String). If the comparison is true, the next data record is merged into the current merge document. (Merge fields that follow the NEXTIF in the main document are replaced by values from the next data record rather than the current data record.) If the comparison is false, the next data record is merged into a new merge document.

Examples:

Shows how to use NEXT/NEXTIF fields to merge multiple rows into one page during a mail merge.

 public void fieldNext() throws Exception {
     Document doc = new Document();
     DocumentBuilder builder = new DocumentBuilder(doc);

     // Create a data source for our mail merge with 3 rows.
     // A mail merge that uses this table would normally create a 3-page document.
     DataTable table = new DataTable("Employees");
     table.getColumns().add("Courtesy Title");
     table.getColumns().add("First Name");
     table.getColumns().add("Last Name");
     table.getRows().add("Mr.", "John", "Doe");
     table.getRows().add("Mrs.", "Jane", "Cardholder");
     table.getRows().add("Mr.", "Joe", "Bloggs");

     insertMergeFields(builder, "First row: ");

     // If we have multiple merge fields with the same FieldName,
     // they will receive data from the same row of the data source and display the same value after the merge.
     // A NEXT field tells the mail merge instantly to move down one row,
     // which means any MERGEFIELDs that follow the NEXT field will receive data from the next row.
     // Make sure never to try to skip to the next row while already on the last row.
     FieldNext fieldNext = (FieldNext) builder.insertField(FieldType.FIELD_NEXT, true);

     Assert.assertEquals(" NEXT ", fieldNext.getFieldCode());

     // After the merge, the data source values that these MERGEFIELDs accept
     // will end up on the same page as the MERGEFIELDs above.
     insertMergeFields(builder, "Second row: ");

     // A NEXTIF field has the same function as a NEXT field,
     // but it skips to the next row only if a statement constructed by the following 3 properties is true.
     FieldNextIf fieldNextIf = (FieldNextIf) builder.insertField(FieldType.FIELD_NEXT_IF, true);
     fieldNextIf.setLeftExpression("5");
     fieldNextIf.setRightExpression("2 + 3");
     fieldNextIf.setComparisonOperator("=");

     Assert.assertEquals(" NEXTIF  5 = \"2 + 3\"", fieldNextIf.getFieldCode());

     // If the comparison asserted by the above field is correct,
     // the following 3 merge fields will take data from the third row.
     // Otherwise, these fields will take data from row 2 again.
     insertMergeFields(builder, "Third row: ");

     doc.getMailMerge().execute(table);

     // Our data source has 3 rows, and we skipped rows twice.
     // Our output document will have 1 page with data from all 3 rows.
     doc.save(getArtifactsDir() + "Field.NEXT.NEXTIF.docx");
 }

 /// 
 /// Uses a document builder to insert MERGEFIELDs for a data source that contains columns named "Courtesy Title", "First Name" and "Last Name".
 /// 
 public void insertMergeFields(final DocumentBuilder builder, final String firstFieldTextBefore) throws Exception {
     insertMergeField(builder, "Courtesy Title", firstFieldTextBefore, " ");
     insertMergeField(builder, "First Name", null, " ");
     insertMergeField(builder, "Last Name", null, null);
     builder.insertParagraph();
 }

 /// 
 /// Uses a document builder to insert a MERRGEFIELD with specified properties.
 /// 
 public void insertMergeField(final DocumentBuilder builder, final String fieldName, final String textBefore, final String textAfter) throws Exception {
     FieldMergeField field = (FieldMergeField) builder.insertField(FieldType.FIELD_MERGE_FIELD, true);
     field.setFieldName(fieldName);
     field.setTextBefore(textBefore);
     field.setTextAfter(textAfter);
 }
 

Methods

Method	Description
getComparisonOperator()	Gets the comparison operator.
getDisplayResult()	Gets the text that represents the displayed field result.
getEnd()	Gets the node that represents the field end.
getFieldCode()	Returns text between field start and field separator (or field end if there is no separator).
getFieldCode(boolean includeChildFieldCodes)	Returns text between field start and field separator (or field end if there is no separator).
getFormat()	Gets a FieldFormat object that provides typed access to field’s formatting.
getLeftExpression()	Gets the left part of the comparison expression.
getLocaleId()	Gets the LCID of the field.
getResult()	Gets text that is between the field separator and field end.
getRightExpression()	Gets the right part of the comparison expression.
getSeparator()	Gets the node that represents the field separator.
getStart()	Gets the node that represents the start of the field.
getType()	Gets the Microsoft Word field type.
isDirty()	Gets whether the current result of the field is no longer correct (stale) due to other modifications made to the document.
isDirty(boolean value)	Sets whether the current result of the field is no longer correct (stale) due to other modifications made to the document.
isLocked()	Gets whether the field is locked (should not recalculate its result).
isLocked(boolean value)	Sets whether the field is locked (should not recalculate its result).
remove()	Removes the field from the document.
setComparisonOperator(String value)	Sets the comparison operator.
setLeftExpression(String value)	Sets the left part of the comparison expression.
setLocaleId(int value)	Sets the LCID of the field.
setResult(String value)	Sets text that is between the field separator and field end.
setRightExpression(String value)	Sets the right part of the comparison expression.
unlink()	Performs the field unlink.
update()	Performs the field update.
update(boolean ignoreMergeFormat)	Performs a field update.

getComparisonOperator()

public String getComparisonOperator()

Gets the comparison operator.

Examples:

Shows how to use NEXT/NEXTIF fields to merge multiple rows into one page during a mail merge.

 public void fieldNext() throws Exception {
     Document doc = new Document();
     DocumentBuilder builder = new DocumentBuilder(doc);

     // Create a data source for our mail merge with 3 rows.
     // A mail merge that uses this table would normally create a 3-page document.
     DataTable table = new DataTable("Employees");
     table.getColumns().add("Courtesy Title");
     table.getColumns().add("First Name");
     table.getColumns().add("Last Name");
     table.getRows().add("Mr.", "John", "Doe");
     table.getRows().add("Mrs.", "Jane", "Cardholder");
     table.getRows().add("Mr.", "Joe", "Bloggs");

     insertMergeFields(builder, "First row: ");

     // If we have multiple merge fields with the same FieldName,
     // they will receive data from the same row of the data source and display the same value after the merge.
     // A NEXT field tells the mail merge instantly to move down one row,
     // which means any MERGEFIELDs that follow the NEXT field will receive data from the next row.
     // Make sure never to try to skip to the next row while already on the last row.
     FieldNext fieldNext = (FieldNext) builder.insertField(FieldType.FIELD_NEXT, true);

     Assert.assertEquals(" NEXT ", fieldNext.getFieldCode());

     // After the merge, the data source values that these MERGEFIELDs accept
     // will end up on the same page as the MERGEFIELDs above.
     insertMergeFields(builder, "Second row: ");

     // A NEXTIF field has the same function as a NEXT field,
     // but it skips to the next row only if a statement constructed by the following 3 properties is true.
     FieldNextIf fieldNextIf = (FieldNextIf) builder.insertField(FieldType.FIELD_NEXT_IF, true);
     fieldNextIf.setLeftExpression("5");
     fieldNextIf.setRightExpression("2 + 3");
     fieldNextIf.setComparisonOperator("=");

     Assert.assertEquals(" NEXTIF  5 = \"2 + 3\"", fieldNextIf.getFieldCode());

     // If the comparison asserted by the above field is correct,
     // the following 3 merge fields will take data from the third row.
     // Otherwise, these fields will take data from row 2 again.
     insertMergeFields(builder, "Third row: ");

     doc.getMailMerge().execute(table);

     // Our data source has 3 rows, and we skipped rows twice.
     // Our output document will have 1 page with data from all 3 rows.
     doc.save(getArtifactsDir() + "Field.NEXT.NEXTIF.docx");
 }

 /// 
 /// Uses a document builder to insert MERGEFIELDs for a data source that contains columns named "Courtesy Title", "First Name" and "Last Name".
 /// 
 public void insertMergeFields(final DocumentBuilder builder, final String firstFieldTextBefore) throws Exception {
     insertMergeField(builder, "Courtesy Title", firstFieldTextBefore, " ");
     insertMergeField(builder, "First Name", null, " ");
     insertMergeField(builder, "Last Name", null, null);
     builder.insertParagraph();
 }

 /// 
 /// Uses a document builder to insert a MERRGEFIELD with specified properties.
 /// 
 public void insertMergeField(final DocumentBuilder builder, final String fieldName, final String textBefore, final String textAfter) throws Exception {
     FieldMergeField field = (FieldMergeField) builder.insertField(FieldType.FIELD_MERGE_FIELD, true);
     field.setFieldName(fieldName);
     field.setTextBefore(textBefore);
     field.setTextAfter(textAfter);
 }
 

Returns: java.lang.String - The comparison operator.

getDisplayResult()

public String getDisplayResult()

Gets the text that represents the displayed field result.

Remarks:

The Document.updateListLabels() method must be called to obtain correct value for the FieldListNum, FieldAutoNum, FieldAutoNumOut and FieldAutoNumLgl fields.

Examples:

Shows how to get the real text that a field displays in the document.

 Document doc = new Document();
 DocumentBuilder builder = new DocumentBuilder(doc);

 builder.write("This document was written by ");
 FieldAuthor fieldAuthor = (FieldAuthor) builder.insertField(FieldType.FIELD_AUTHOR, true);
 fieldAuthor.setAuthorName("John Doe");

 // We can use the DisplayResult property to verify what exact text
 // a field would display in its place in the document.
 Assert.assertEquals("", fieldAuthor.getDisplayResult());

 // Fields do not maintain accurate result values in real-time.
 // To make sure our fields display accurate results at any given time,
 // such as right before a save operation, we need to update them manually.
 fieldAuthor.update();

 Assert.assertEquals("John Doe", fieldAuthor.getDisplayResult());

 doc.save(getArtifactsDir() + "Field.DisplayResult.docx");
 

Returns: java.lang.String - The text that represents the displayed field result.

getEnd()

public FieldEnd getEnd()

Gets the node that represents the field end.

Examples:

Shows how to work with a collection of fields.

 public void fieldCollection() throws Exception {
     Document doc = new Document();
     DocumentBuilder builder = new DocumentBuilder(doc);

     builder.insertField(" DATE \\@ \"dddd, d MMMM yyyy\" ");
     builder.insertField(" TIME ");
     builder.insertField(" REVNUM ");
     builder.insertField(" AUTHOR  \"John Doe\" ");
     builder.insertField(" SUBJECT \"My Subject\" ");
     builder.insertField(" QUOTE \"Hello world!\" ");
     doc.updateFields();

     FieldCollection fields = doc.getRange().getFields();

     Assert.assertEquals(6, fields.getCount());

     // Iterate over the field collection, and print contents and type
     // of every field using a custom visitor implementation.
     FieldVisitor fieldVisitor = new FieldVisitor();

     Iterator fieldEnumerator = fields.iterator();

     while (fieldEnumerator.hasNext()) {
         if (fieldEnumerator != null) {
             Field currentField = fieldEnumerator.next();

             currentField.getStart().accept(fieldVisitor);
             if (currentField.getSeparator() != null) {
                 currentField.getSeparator().accept(fieldVisitor);
             }
             currentField.getEnd().accept(fieldVisitor);
         } else {
             System.out.println("There are no fields in the document.");
         }
     }

     System.out.println(fieldVisitor.getText());
 }

 /// 
 /// Document visitor implementation that prints field info.
 /// 
 public static class FieldVisitor extends DocumentVisitor {
     public FieldVisitor() {
         mBuilder = new StringBuilder();
     }

     /// 
     /// Gets the plain text of the document that was accumulated by the visitor.
     /// 
     public String getText() {
         return mBuilder.toString();
     }

     /// 
     /// Called when a FieldStart node is encountered in the document.
     /// 
     public int visitFieldStart(final FieldStart fieldStart) {
         mBuilder.append("Found field: " + fieldStart.getFieldType() + "\r\n");
         mBuilder.append("\tField code: " + fieldStart.getField().getFieldCode() + "\r\n");
         mBuilder.append("\tDisplayed as: " + fieldStart.getField().getResult() + "\r\n");

         return VisitorAction.CONTINUE;
     }

     /// 
     /// Called when a FieldSeparator node is encountered in the document.
     /// 
     public int visitFieldSeparator(final FieldSeparator fieldSeparator) {
         mBuilder.append("\tFound separator: " + fieldSeparator.getText() + "\r\n");

         return VisitorAction.CONTINUE;
     }

     /// 
     /// Called when a FieldEnd node is encountered in the document.
     /// 
     public int visitFieldEnd(final FieldEnd fieldEnd) {
         mBuilder.append("End of field: " + fieldEnd.getFieldType() + "\r\n");

         return VisitorAction.CONTINUE;
     }

     private final  StringBuilder mBuilder;
 }
 

Returns: FieldEnd - The node that represents the field end.

getFieldCode()

public String getFieldCode()

Returns text between field start and field separator (or field end if there is no separator). Both field code and field result of child fields are included.

Examples:

Shows how to insert a field into a document using a field code.

 Document doc = new Document();
 DocumentBuilder builder = new DocumentBuilder(doc);

 Field dateField = builder.insertField("DATE \\* MERGEFORMAT");

 Assert.assertEquals(FieldType.FIELD_DATE, dateField.getType());
 Assert.assertEquals("DATE \\* MERGEFORMAT", dateField.getFieldCode());
 

Shows how to get a field’s field code.

 // Open a document which contains a MERGEFIELD inside an IF field.
 Document doc = new Document(getMyDir() + "Nested fields.docx");
 FieldIf fieldIf = (FieldIf) doc.getRange().getFields().get(0);

 // There are two ways of getting a field's field code:
 // 1 -  Omit its inner fields:
 Assert.assertEquals(" IF  > 0 \" (surplus of ) \" \"\" ", fieldIf.getFieldCode(false));

 // 2 -  Include its inner fields:
 Assert.assertEquals(" IF  MERGEFIELD NetIncome  > 0 \" (surplus of  MERGEFIELD  NetIncome \\f $ ) \" \"\" ",
         fieldIf.getFieldCode(true));

 // By default, the GetFieldCode method displays inner fields.
 Assert.assertEquals(fieldIf.getFieldCode(), fieldIf.getFieldCode(true));
 

Returns: java.lang.String

getFieldCode(boolean includeChildFieldCodes)

public String getFieldCode(boolean includeChildFieldCodes)

Returns text between field start and field separator (or field end if there is no separator).

Examples:

Shows how to get a field’s field code.

 // Open a document which contains a MERGEFIELD inside an IF field.
 Document doc = new Document(getMyDir() + "Nested fields.docx");
 FieldIf fieldIf = (FieldIf) doc.getRange().getFields().get(0);

 // There are two ways of getting a field's field code:
 // 1 -  Omit its inner fields:
 Assert.assertEquals(" IF  > 0 \" (surplus of ) \" \"\" ", fieldIf.getFieldCode(false));

 // 2 -  Include its inner fields:
 Assert.assertEquals(" IF  MERGEFIELD NetIncome  > 0 \" (surplus of  MERGEFIELD  NetIncome \\f $ ) \" \"\" ",
         fieldIf.getFieldCode(true));

 // By default, the GetFieldCode method displays inner fields.
 Assert.assertEquals(fieldIf.getFieldCode(), fieldIf.getFieldCode(true));
 

Parameters:

Parameter	Type	Description
includeChildFieldCodes	boolean	true if child field codes should be included.

Returns: java.lang.String

getFormat()

public FieldFormat getFormat()

Gets a FieldFormat object that provides typed access to field’s formatting.

Examples:

Shows how to format field results.

 Document doc = new Document();
 DocumentBuilder builder = new DocumentBuilder(doc);

 // Use a document builder to insert a field that displays a result with no format applied.
 Field field = builder.insertField("= 2 + 3");

 Assert.assertEquals("= 2 + 3", field.getFieldCode());
 Assert.assertEquals("5", field.getResult());

 // We can apply a format to a field's result using the field's properties.
 // Below are three types of formats that we can apply to a field's result.
 // 1 -  Numeric format:
 FieldFormat format = field.getFormat();
 format.setNumericFormat("$###.00");
 field.update();

 Assert.assertEquals("= 2 + 3 \\# $###.00", field.getFieldCode());
 Assert.assertEquals("$  5.00", field.getResult());

 // 2 -  Date/time format:
 field = builder.insertField("DATE");
 format = field.getFormat();
 format.setDateTimeFormat("dddd, MMMM dd, yyyy");
 field.update();

 Assert.assertEquals("DATE \\@ \"dddd, MMMM dd, yyyy\"", field.getFieldCode());
 System.out.println("Today's date, in {format.DateTimeFormat} format:\n\t{field.Result}");

 // 3 -  General format:
 field = builder.insertField("= 25 + 33");
 format = field.getFormat();
 format.getGeneralFormats().add(GeneralFormat.LOWERCASE_ROMAN);
 format.getGeneralFormats().add(GeneralFormat.UPPER);
 field.update();

 int index = 0;
 Iterator generalFormatEnumerator = format.getGeneralFormats().iterator();
 while (generalFormatEnumerator.hasNext()) {
     int value = generalFormatEnumerator.next();
     System.out.println(MessageFormat.format("General format index {0}: {1}", index++, value));
 }

 Assert.assertEquals("= 25 + 33 \\* roman \\* Upper", field.getFieldCode());
 Assert.assertEquals("LVIII", field.getResult());
 Assert.assertEquals(2, format.getGeneralFormats().getCount());
 Assert.assertEquals(GeneralFormat.LOWERCASE_ROMAN, format.getGeneralFormats().get(0));

 // We can remove our formats to revert the field's result to its original form.
 format.getGeneralFormats().remove(GeneralFormat.LOWERCASE_ROMAN);
 format.getGeneralFormats().removeAt(0);
 Assert.assertEquals(0, format.getGeneralFormats().getCount());
 field.update();

 Assert.assertEquals("= 25 + 33  ", field.getFieldCode());
 Assert.assertEquals("58", field.getResult());
 Assert.assertEquals(0, format.getGeneralFormats().getCount());
 

Returns: FieldFormat - A FieldFormat object that provides typed access to field’s formatting.

getLeftExpression()

public String getLeftExpression()

Gets the left part of the comparison expression.

Examples:

Shows how to use NEXT/NEXTIF fields to merge multiple rows into one page during a mail merge.

 public void fieldNext() throws Exception {
     Document doc = new Document();
     DocumentBuilder builder = new DocumentBuilder(doc);

     // Create a data source for our mail merge with 3 rows.
     // A mail merge that uses this table would normally create a 3-page document.
     DataTable table = new DataTable("Employees");
     table.getColumns().add("Courtesy Title");
     table.getColumns().add("First Name");
     table.getColumns().add("Last Name");
     table.getRows().add("Mr.", "John", "Doe");
     table.getRows().add("Mrs.", "Jane", "Cardholder");
     table.getRows().add("Mr.", "Joe", "Bloggs");

     insertMergeFields(builder, "First row: ");

     // If we have multiple merge fields with the same FieldName,
     // they will receive data from the same row of the data source and display the same value after the merge.
     // A NEXT field tells the mail merge instantly to move down one row,
     // which means any MERGEFIELDs that follow the NEXT field will receive data from the next row.
     // Make sure never to try to skip to the next row while already on the last row.
     FieldNext fieldNext = (FieldNext) builder.insertField(FieldType.FIELD_NEXT, true);

     Assert.assertEquals(" NEXT ", fieldNext.getFieldCode());

     // After the merge, the data source values that these MERGEFIELDs accept
     // will end up on the same page as the MERGEFIELDs above.
     insertMergeFields(builder, "Second row: ");

     // A NEXTIF field has the same function as a NEXT field,
     // but it skips to the next row only if a statement constructed by the following 3 properties is true.
     FieldNextIf fieldNextIf = (FieldNextIf) builder.insertField(FieldType.FIELD_NEXT_IF, true);
     fieldNextIf.setLeftExpression("5");
     fieldNextIf.setRightExpression("2 + 3");
     fieldNextIf.setComparisonOperator("=");

     Assert.assertEquals(" NEXTIF  5 = \"2 + 3\"", fieldNextIf.getFieldCode());

     // If the comparison asserted by the above field is correct,
     // the following 3 merge fields will take data from the third row.
     // Otherwise, these fields will take data from row 2 again.
     insertMergeFields(builder, "Third row: ");

     doc.getMailMerge().execute(table);

     // Our data source has 3 rows, and we skipped rows twice.
     // Our output document will have 1 page with data from all 3 rows.
     doc.save(getArtifactsDir() + "Field.NEXT.NEXTIF.docx");
 }

 /// 
 /// Uses a document builder to insert MERGEFIELDs for a data source that contains columns named "Courtesy Title", "First Name" and "Last Name".
 /// 
 public void insertMergeFields(final DocumentBuilder builder, final String firstFieldTextBefore) throws Exception {
     insertMergeField(builder, "Courtesy Title", firstFieldTextBefore, " ");
     insertMergeField(builder, "First Name", null, " ");
     insertMergeField(builder, "Last Name", null, null);
     builder.insertParagraph();
 }

 /// 
 /// Uses a document builder to insert a MERRGEFIELD with specified properties.
 /// 
 public void insertMergeField(final DocumentBuilder builder, final String fieldName, final String textBefore, final String textAfter) throws Exception {
     FieldMergeField field = (FieldMergeField) builder.insertField(FieldType.FIELD_MERGE_FIELD, true);
     field.setFieldName(fieldName);
     field.setTextBefore(textBefore);
     field.setTextAfter(textAfter);
 }
 

Returns: java.lang.String - The left part of the comparison expression.

getLocaleId()

public int getLocaleId()

Gets the LCID of the field.

Examples:

Shows how to insert a field and work with its locale.

 Document doc = new Document();
 DocumentBuilder builder = new DocumentBuilder(doc);

 // Insert a DATE field, and then print the date it will display.
 // Your thread's current culture determines the formatting of the date.
 Field field = builder.insertField("DATE");
 System.out.println(MessageFormat.format("Today''s date, as displayed in the \"{0}\" culture: {1}", Locale.getDefault().getDisplayLanguage(), field.getResult()));

 Assert.assertEquals(1033, field.getLocaleId());
 // Changing the culture of our thread will impact the result of the DATE field.
 // Another way to get the DATE field to display a date in a different culture is to use its LocaleId property.
 // This way allows us to avoid changing the thread's culture to get this effect.
 doc.getFieldOptions().setFieldUpdateCultureSource(FieldUpdateCultureSource.FIELD_CODE);
 CultureInfo de = new CultureInfo("de-DE");
 field.setLocaleId(1031);
 field.update();

 System.out.println(MessageFormat.format("Today''s date, as displayed according to the \"{0}\" culture: {1}", Locale.forLanguageTag(LocaleUtil.getLocaleFromLCID(field.getLocaleId())).getDisplayLanguage(), field.getResult()));
 

Returns: int - The LCID of the field.

getResult()

public String getResult()

Gets text that is between the field separator and field end.

Examples:

Shows how to insert a field into a document using a field code.

 Document doc = new Document();
 DocumentBuilder builder = new DocumentBuilder(doc);

 Field dateField = builder.insertField("DATE \\* MERGEFORMAT");

 Assert.assertEquals(FieldType.FIELD_DATE, dateField.getType());
 Assert.assertEquals("DATE \\* MERGEFORMAT", dateField.getFieldCode());
 

Returns: java.lang.String - Text that is between the field separator and field end.

getRightExpression()

public String getRightExpression()

Gets the right part of the comparison expression.

Examples:

Shows how to use NEXT/NEXTIF fields to merge multiple rows into one page during a mail merge.

 public void fieldNext() throws Exception {
     Document doc = new Document();
     DocumentBuilder builder = new DocumentBuilder(doc);

     // Create a data source for our mail merge with 3 rows.
     // A mail merge that uses this table would normally create a 3-page document.
     DataTable table = new DataTable("Employees");
     table.getColumns().add("Courtesy Title");
     table.getColumns().add("First Name");
     table.getColumns().add("Last Name");
     table.getRows().add("Mr.", "John", "Doe");
     table.getRows().add("Mrs.", "Jane", "Cardholder");
     table.getRows().add("Mr.", "Joe", "Bloggs");

     insertMergeFields(builder, "First row: ");

     // If we have multiple merge fields with the same FieldName,
     // they will receive data from the same row of the data source and display the same value after the merge.
     // A NEXT field tells the mail merge instantly to move down one row,
     // which means any MERGEFIELDs that follow the NEXT field will receive data from the next row.
     // Make sure never to try to skip to the next row while already on the last row.
     FieldNext fieldNext = (FieldNext) builder.insertField(FieldType.FIELD_NEXT, true);

     Assert.assertEquals(" NEXT ", fieldNext.getFieldCode());

     // After the merge, the data source values that these MERGEFIELDs accept
     // will end up on the same page as the MERGEFIELDs above.
     insertMergeFields(builder, "Second row: ");

     // A NEXTIF field has the same function as a NEXT field,
     // but it skips to the next row only if a statement constructed by the following 3 properties is true.
     FieldNextIf fieldNextIf = (FieldNextIf) builder.insertField(FieldType.FIELD_NEXT_IF, true);
     fieldNextIf.setLeftExpression("5");
     fieldNextIf.setRightExpression("2 + 3");
     fieldNextIf.setComparisonOperator("=");

     Assert.assertEquals(" NEXTIF  5 = \"2 + 3\"", fieldNextIf.getFieldCode());

     // If the comparison asserted by the above field is correct,
     // the following 3 merge fields will take data from the third row.
     // Otherwise, these fields will take data from row 2 again.
     insertMergeFields(builder, "Third row: ");

     doc.getMailMerge().execute(table);

     // Our data source has 3 rows, and we skipped rows twice.
     // Our output document will have 1 page with data from all 3 rows.
     doc.save(getArtifactsDir() + "Field.NEXT.NEXTIF.docx");
 }

 /// 
 /// Uses a document builder to insert MERGEFIELDs for a data source that contains columns named "Courtesy Title", "First Name" and "Last Name".
 /// 
 public void insertMergeFields(final DocumentBuilder builder, final String firstFieldTextBefore) throws Exception {
     insertMergeField(builder, "Courtesy Title", firstFieldTextBefore, " ");
     insertMergeField(builder, "First Name", null, " ");
     insertMergeField(builder, "Last Name", null, null);
     builder.insertParagraph();
 }

 /// 
 /// Uses a document builder to insert a MERRGEFIELD with specified properties.
 /// 
 public void insertMergeField(final DocumentBuilder builder, final String fieldName, final String textBefore, final String textAfter) throws Exception {
     FieldMergeField field = (FieldMergeField) builder.insertField(FieldType.FIELD_MERGE_FIELD, true);
     field.setFieldName(fieldName);
     field.setTextBefore(textBefore);
     field.setTextAfter(textAfter);
 }
 

Returns: java.lang.String - The right part of the comparison expression.

getSeparator()

public FieldSeparator getSeparator()

Gets the node that represents the field separator. Can be null .

Examples:

Shows how to work with a collection of fields.

 public void fieldCollection() throws Exception {
     Document doc = new Document();
     DocumentBuilder builder = new DocumentBuilder(doc);

     builder.insertField(" DATE \\@ \"dddd, d MMMM yyyy\" ");
     builder.insertField(" TIME ");
     builder.insertField(" REVNUM ");
     builder.insertField(" AUTHOR  \"John Doe\" ");
     builder.insertField(" SUBJECT \"My Subject\" ");
     builder.insertField(" QUOTE \"Hello world!\" ");
     doc.updateFields();

     FieldCollection fields = doc.getRange().getFields();

     Assert.assertEquals(6, fields.getCount());

     // Iterate over the field collection, and print contents and type
     // of every field using a custom visitor implementation.
     FieldVisitor fieldVisitor = new FieldVisitor();

     Iterator fieldEnumerator = fields.iterator();

     while (fieldEnumerator.hasNext()) {
         if (fieldEnumerator != null) {
             Field currentField = fieldEnumerator.next();

             currentField.getStart().accept(fieldVisitor);
             if (currentField.getSeparator() != null) {
                 currentField.getSeparator().accept(fieldVisitor);
             }
             currentField.getEnd().accept(fieldVisitor);
         } else {
             System.out.println("There are no fields in the document.");
         }
     }

     System.out.println(fieldVisitor.getText());
 }

 /// 
 /// Document visitor implementation that prints field info.
 /// 
 public static class FieldVisitor extends DocumentVisitor {
     public FieldVisitor() {
         mBuilder = new StringBuilder();
     }

     /// 
     /// Gets the plain text of the document that was accumulated by the visitor.
     /// 
     public String getText() {
         return mBuilder.toString();
     }

     /// 
     /// Called when a FieldStart node is encountered in the document.
     /// 
     public int visitFieldStart(final FieldStart fieldStart) {
         mBuilder.append("Found field: " + fieldStart.getFieldType() + "\r\n");
         mBuilder.append("\tField code: " + fieldStart.getField().getFieldCode() + "\r\n");
         mBuilder.append("\tDisplayed as: " + fieldStart.getField().getResult() + "\r\n");

         return VisitorAction.CONTINUE;
     }

     /// 
     /// Called when a FieldSeparator node is encountered in the document.
     /// 
     public int visitFieldSeparator(final FieldSeparator fieldSeparator) {
         mBuilder.append("\tFound separator: " + fieldSeparator.getText() + "\r\n");

         return VisitorAction.CONTINUE;
     }

     /// 
     /// Called when a FieldEnd node is encountered in the document.
     /// 
     public int visitFieldEnd(final FieldEnd fieldEnd) {
         mBuilder.append("End of field: " + fieldEnd.getFieldType() + "\r\n");

         return VisitorAction.CONTINUE;
     }

     private final  StringBuilder mBuilder;
 }
 

Returns: FieldSeparator - The node that represents the field separator.

getStart()

public FieldStart getStart()

Gets the node that represents the start of the field.

Examples:

Shows how to work with a collection of fields.

 public void fieldCollection() throws Exception {
     Document doc = new Document();
     DocumentBuilder builder = new DocumentBuilder(doc);

     builder.insertField(" DATE \\@ \"dddd, d MMMM yyyy\" ");
     builder.insertField(" TIME ");
     builder.insertField(" REVNUM ");
     builder.insertField(" AUTHOR  \"John Doe\" ");
     builder.insertField(" SUBJECT \"My Subject\" ");
     builder.insertField(" QUOTE \"Hello world!\" ");
     doc.updateFields();

     FieldCollection fields = doc.getRange().getFields();

     Assert.assertEquals(6, fields.getCount());

     // Iterate over the field collection, and print contents and type
     // of every field using a custom visitor implementation.
     FieldVisitor fieldVisitor = new FieldVisitor();

     Iterator fieldEnumerator = fields.iterator();

     while (fieldEnumerator.hasNext()) {
         if (fieldEnumerator != null) {
             Field currentField = fieldEnumerator.next();

             currentField.getStart().accept(fieldVisitor);
             if (currentField.getSeparator() != null) {
                 currentField.getSeparator().accept(fieldVisitor);
             }
             currentField.getEnd().accept(fieldVisitor);
         } else {
             System.out.println("There are no fields in the document.");
         }
     }

     System.out.println(fieldVisitor.getText());
 }

 /// 
 /// Document visitor implementation that prints field info.
 /// 
 public static class FieldVisitor extends DocumentVisitor {
     public FieldVisitor() {
         mBuilder = new StringBuilder();
     }

     /// 
     /// Gets the plain text of the document that was accumulated by the visitor.
     /// 
     public String getText() {
         return mBuilder.toString();
     }

     /// 
     /// Called when a FieldStart node is encountered in the document.
     /// 
     public int visitFieldStart(final FieldStart fieldStart) {
         mBuilder.append("Found field: " + fieldStart.getFieldType() + "\r\n");
         mBuilder.append("\tField code: " + fieldStart.getField().getFieldCode() + "\r\n");
         mBuilder.append("\tDisplayed as: " + fieldStart.getField().getResult() + "\r\n");

         return VisitorAction.CONTINUE;
     }

     /// 
     /// Called when a FieldSeparator node is encountered in the document.
     /// 
     public int visitFieldSeparator(final FieldSeparator fieldSeparator) {
         mBuilder.append("\tFound separator: " + fieldSeparator.getText() + "\r\n");

         return VisitorAction.CONTINUE;
     }

     /// 
     /// Called when a FieldEnd node is encountered in the document.
     /// 
     public int visitFieldEnd(final FieldEnd fieldEnd) {
         mBuilder.append("End of field: " + fieldEnd.getFieldType() + "\r\n");

         return VisitorAction.CONTINUE;
     }

     private final  StringBuilder mBuilder;
 }
 

Returns: FieldStart - The node that represents the start of the field.

getType()

public int getType()

Gets the Microsoft Word field type.

Examples:

Shows how to insert a field into a document using a field code.

 Document doc = new Document();
 DocumentBuilder builder = new DocumentBuilder(doc);

 Field dateField = builder.insertField("DATE \\* MERGEFORMAT");

 Assert.assertEquals(FieldType.FIELD_DATE, dateField.getType());
 Assert.assertEquals("DATE \\* MERGEFORMAT", dateField.getFieldCode());
 

Returns: int - The Microsoft Word field type. The returned value is one of FieldType constants.

isDirty()

public boolean isDirty()

Gets whether the current result of the field is no longer correct (stale) due to other modifications made to the document.

Examples:

Shows how to use special property for updating field result.

 Document doc = new Document();
 DocumentBuilder builder = new DocumentBuilder(doc);

 // Give the document's built-in "Author" property value, and then display it with a field.
 doc.getBuiltInDocumentProperties().setAuthor("John Doe");
 FieldAuthor field = (FieldAuthor) builder.insertField(FieldType.FIELD_AUTHOR, true);

 Assert.assertFalse(field.isDirty());
 Assert.assertEquals("John Doe", field.getResult());

 // Update the property. The field still displays the old value.
 doc.getBuiltInDocumentProperties().setAuthor("John & Jane Doe");

 Assert.assertEquals("John Doe", field.getResult());

 // Since the field's value is out of date, we can mark it as "dirty".
 // This value will stay out of date until we update the field manually with the Field.Update() method.
 field.isDirty(true);

 // If we save without calling an update method,
 // the field will keep displaying the out of date value in the output document.
 doc.save(getArtifactsDir() + "Filed.UpdateDirtyFields.docx");

 // The LoadOptions object has an option to update all fields
 // marked as "dirty" when loading the document.
 LoadOptions options = new LoadOptions();
 options.setUpdateDirtyFields(updateDirtyFields);

 doc = new Document(getArtifactsDir() + "Filed.UpdateDirtyFields.docx", options);

 Assert.assertEquals("John & Jane Doe", doc.getBuiltInDocumentProperties().getAuthor());

 field = (FieldAuthor) doc.getRange().getFields().get(0);

 // Updating dirty fields like this automatically set their "IsDirty" flag to false.
 if (updateDirtyFields) {
     Assert.assertEquals("John & Jane Doe", field.getResult());
     Assert.assertFalse(field.isDirty());
 } else {
     Assert.assertEquals("John Doe", field.getResult());
     Assert.assertTrue(field.isDirty());
 }
 

Returns: boolean - Whether the current result of the field is no longer correct (stale) due to other modifications made to the document.

isDirty(boolean value)

public void isDirty(boolean value)

Sets whether the current result of the field is no longer correct (stale) due to other modifications made to the document.

Examples:

Shows how to use special property for updating field result.

 Document doc = new Document();
 DocumentBuilder builder = new DocumentBuilder(doc);

 // Give the document's built-in "Author" property value, and then display it with a field.
 doc.getBuiltInDocumentProperties().setAuthor("John Doe");
 FieldAuthor field = (FieldAuthor) builder.insertField(FieldType.FIELD_AUTHOR, true);

 Assert.assertFalse(field.isDirty());
 Assert.assertEquals("John Doe", field.getResult());

 // Update the property. The field still displays the old value.
 doc.getBuiltInDocumentProperties().setAuthor("John & Jane Doe");

 Assert.assertEquals("John Doe", field.getResult());

 // Since the field's value is out of date, we can mark it as "dirty".
 // This value will stay out of date until we update the field manually with the Field.Update() method.
 field.isDirty(true);

 // If we save without calling an update method,
 // the field will keep displaying the out of date value in the output document.
 doc.save(getArtifactsDir() + "Filed.UpdateDirtyFields.docx");

 // The LoadOptions object has an option to update all fields
 // marked as "dirty" when loading the document.
 LoadOptions options = new LoadOptions();
 options.setUpdateDirtyFields(updateDirtyFields);

 doc = new Document(getArtifactsDir() + "Filed.UpdateDirtyFields.docx", options);

 Assert.assertEquals("John & Jane Doe", doc.getBuiltInDocumentProperties().getAuthor());

 field = (FieldAuthor) doc.getRange().getFields().get(0);

 // Updating dirty fields like this automatically set their "IsDirty" flag to false.
 if (updateDirtyFields) {
     Assert.assertEquals("John & Jane Doe", field.getResult());
     Assert.assertFalse(field.isDirty());
 } else {
     Assert.assertEquals("John Doe", field.getResult());
     Assert.assertTrue(field.isDirty());
 }
 

Parameters:

Parameter	Type	Description
value	boolean	Whether the current result of the field is no longer correct (stale) due to other modifications made to the document.

isLocked()

public boolean isLocked()

Gets whether the field is locked (should not recalculate its result).

Examples:

Shows how to work with a FieldStart node.

 Document doc = new Document();
 DocumentBuilder builder = new DocumentBuilder(doc);

 FieldDate field = (FieldDate) builder.insertField(FieldType.FIELD_DATE, true);
 field.getFormat().setDateTimeFormat("dddd, MMMM dd, yyyy");
 field.update();

 FieldChar fieldStart = field.getStart();

 Assert.assertEquals(FieldType.FIELD_DATE, fieldStart.getFieldType());
 Assert.assertEquals(false, fieldStart.isDirty());
 Assert.assertEquals(false, fieldStart.isLocked());

 // Retrieve the facade object which represents the field in the document.
 field = (FieldDate) fieldStart.getField();

 Assert.assertEquals(false, field.isLocked());
 Assert.assertEquals(" DATE  \\@ \"dddd, MMMM dd, yyyy\"", field.getFieldCode());

 // Update the field to show the current date.
 field.update();
 

Returns: boolean - Whether the field is locked (should not recalculate its result).

isLocked(boolean value)

public void isLocked(boolean value)

Sets whether the field is locked (should not recalculate its result).

Examples:

Shows how to work with a FieldStart node.

 Document doc = new Document();
 DocumentBuilder builder = new DocumentBuilder(doc);

 FieldDate field = (FieldDate) builder.insertField(FieldType.FIELD_DATE, true);
 field.getFormat().setDateTimeFormat("dddd, MMMM dd, yyyy");
 field.update();

 FieldChar fieldStart = field.getStart();

 Assert.assertEquals(FieldType.FIELD_DATE, fieldStart.getFieldType());
 Assert.assertEquals(false, fieldStart.isDirty());
 Assert.assertEquals(false, fieldStart.isLocked());

 // Retrieve the facade object which represents the field in the document.
 field = (FieldDate) fieldStart.getField();

 Assert.assertEquals(false, field.isLocked());
 Assert.assertEquals(" DATE  \\@ \"dddd, MMMM dd, yyyy\"", field.getFieldCode());

 // Update the field to show the current date.
 field.update();
 

Parameters:

Parameter	Type	Description
value	boolean	Whether the field is locked (should not recalculate its result).

remove()

public Node remove()

Removes the field from the document. Returns a node right after the field. If the field’s end is the last child of its parent node, returns its parent paragraph. If the field is already removed, returns null .

Examples:

Shows how to remove fields from a field collection.

 Document doc = new Document();
 DocumentBuilder builder = new DocumentBuilder(doc);

 builder.insertField(" DATE \\@ \"dddd, d MMMM yyyy\" ");
 builder.insertField(" TIME ");
 builder.insertField(" REVNUM ");
 builder.insertField(" AUTHOR  \"John Doe\" ");
 builder.insertField(" SUBJECT \"My Subject\" ");
 builder.insertField(" QUOTE \"Hello world!\" ");
 doc.updateFields();

 FieldCollection fields = doc.getRange().getFields();

 Assert.assertEquals(6, fields.getCount());

 // Below are four ways of removing fields from a field collection.
 // 1 -  Get a field to remove itself:
 fields.get(0).remove();
 Assert.assertEquals(5, fields.getCount());

 // 2 -  Get the collection to remove a field that we pass to its removal method:
 Field lastField = fields.get(3);
 fields.remove(lastField);
 Assert.assertEquals(4, fields.getCount());

 // 3 -  Remove a field from a collection at an index:
 fields.removeAt(2);
 Assert.assertEquals(3, fields.getCount());

 // 4 -  Remove all the fields from the collection at once:
 fields.clear();
 Assert.assertEquals(0, fields.getCount());
 

Shows how to process PRIVATE fields.

 public void fieldPrivate() throws Exception {
     // Open a Corel WordPerfect document which we have converted to .docx format.
     Document doc = new Document(getMyDir() + "Field sample - PRIVATE.docx");

     // WordPerfect 5.x/6.x documents like the one we have loaded may contain PRIVATE fields.
     // Microsoft Word preserves PRIVATE fields during load/save operations,
     // but provides no functionality for them.
     FieldPrivate field = (FieldPrivate) doc.getRange().getFields().get(0);

     Assert.assertEquals(" PRIVATE \"My value\" ", field.getFieldCode());
     Assert.assertEquals(FieldType.FIELD_PRIVATE, field.getType());

     // We can also insert PRIVATE fields using a document builder.
     DocumentBuilder builder = new DocumentBuilder(doc);
     builder.insertField(FieldType.FIELD_PRIVATE, true);

     // These fields are not a viable way of protecting sensitive information.
     // Unless backward compatibility with older versions of WordPerfect is essential,
     // we can safely remove these fields. We can do this using a DocumentVisiitor implementation.
     Assert.assertEquals(2, doc.getRange().getFields().getCount());

     FieldPrivateRemover remover = new FieldPrivateRemover();
     doc.accept(remover);

     Assert.assertEquals(remover.getFieldsRemovedCount(), 2);
     Assert.assertEquals(doc.getRange().getFields().getCount(), 0);
 }

 /// 
 /// Removes all encountered PRIVATE fields.
 /// 
 public static class FieldPrivateRemover extends DocumentVisitor {
     public FieldPrivateRemover() {
         mFieldsRemovedCount = 0;
     }

     public int getFieldsRemovedCount() {
         return mFieldsRemovedCount;
     }

     /// 
     /// Called when a FieldEnd node is encountered in the document.
     /// If the node belongs to a PRIVATE field, the entire field is removed.
     /// 
     public int visitFieldEnd(final FieldEnd fieldEnd) throws Exception {
         if (fieldEnd.getFieldType() == FieldType.FIELD_PRIVATE) {
             fieldEnd.getField().remove();
             mFieldsRemovedCount++;
         }

         return VisitorAction.CONTINUE;
     }

     private int mFieldsRemovedCount;
 }
 

Returns: Node

setComparisonOperator(String value)

public void setComparisonOperator(String value)

Sets the comparison operator.

Examples:

Shows how to use NEXT/NEXTIF fields to merge multiple rows into one page during a mail merge.

 public void fieldNext() throws Exception {
     Document doc = new Document();
     DocumentBuilder builder = new DocumentBuilder(doc);

     // Create a data source for our mail merge with 3 rows.
     // A mail merge that uses this table would normally create a 3-page document.
     DataTable table = new DataTable("Employees");
     table.getColumns().add("Courtesy Title");
     table.getColumns().add("First Name");
     table.getColumns().add("Last Name");
     table.getRows().add("Mr.", "John", "Doe");
     table.getRows().add("Mrs.", "Jane", "Cardholder");
     table.getRows().add("Mr.", "Joe", "Bloggs");

     insertMergeFields(builder, "First row: ");

     // If we have multiple merge fields with the same FieldName,
     // they will receive data from the same row of the data source and display the same value after the merge.
     // A NEXT field tells the mail merge instantly to move down one row,
     // which means any MERGEFIELDs that follow the NEXT field will receive data from the next row.
     // Make sure never to try to skip to the next row while already on the last row.
     FieldNext fieldNext = (FieldNext) builder.insertField(FieldType.FIELD_NEXT, true);

     Assert.assertEquals(" NEXT ", fieldNext.getFieldCode());

     // After the merge, the data source values that these MERGEFIELDs accept
     // will end up on the same page as the MERGEFIELDs above.
     insertMergeFields(builder, "Second row: ");

     // A NEXTIF field has the same function as a NEXT field,
     // but it skips to the next row only if a statement constructed by the following 3 properties is true.
     FieldNextIf fieldNextIf = (FieldNextIf) builder.insertField(FieldType.FIELD_NEXT_IF, true);
     fieldNextIf.setLeftExpression("5");
     fieldNextIf.setRightExpression("2 + 3");
     fieldNextIf.setComparisonOperator("=");

     Assert.assertEquals(" NEXTIF  5 = \"2 + 3\"", fieldNextIf.getFieldCode());

     // If the comparison asserted by the above field is correct,
     // the following 3 merge fields will take data from the third row.
     // Otherwise, these fields will take data from row 2 again.
     insertMergeFields(builder, "Third row: ");

     doc.getMailMerge().execute(table);

     // Our data source has 3 rows, and we skipped rows twice.
     // Our output document will have 1 page with data from all 3 rows.
     doc.save(getArtifactsDir() + "Field.NEXT.NEXTIF.docx");
 }

 /// 
 /// Uses a document builder to insert MERGEFIELDs for a data source that contains columns named "Courtesy Title", "First Name" and "Last Name".
 /// 
 public void insertMergeFields(final DocumentBuilder builder, final String firstFieldTextBefore) throws Exception {
     insertMergeField(builder, "Courtesy Title", firstFieldTextBefore, " ");
     insertMergeField(builder, "First Name", null, " ");
     insertMergeField(builder, "Last Name", null, null);
     builder.insertParagraph();
 }

 /// 
 /// Uses a document builder to insert a MERRGEFIELD with specified properties.
 /// 
 public void insertMergeField(final DocumentBuilder builder, final String fieldName, final String textBefore, final String textAfter) throws Exception {
     FieldMergeField field = (FieldMergeField) builder.insertField(FieldType.FIELD_MERGE_FIELD, true);
     field.setFieldName(fieldName);
     field.setTextBefore(textBefore);
     field.setTextAfter(textAfter);
 }
 

Parameters:

Parameter	Type	Description
value	java.lang.String	The comparison operator.

setLeftExpression(String value)

public void setLeftExpression(String value)

Sets the left part of the comparison expression.

Examples:

Shows how to use NEXT/NEXTIF fields to merge multiple rows into one page during a mail merge.

 public void fieldNext() throws Exception {
     Document doc = new Document();
     DocumentBuilder builder = new DocumentBuilder(doc);

     // Create a data source for our mail merge with 3 rows.
     // A mail merge that uses this table would normally create a 3-page document.
     DataTable table = new DataTable("Employees");
     table.getColumns().add("Courtesy Title");
     table.getColumns().add("First Name");
     table.getColumns().add("Last Name");
     table.getRows().add("Mr.", "John", "Doe");
     table.getRows().add("Mrs.", "Jane", "Cardholder");
     table.getRows().add("Mr.", "Joe", "Bloggs");

     insertMergeFields(builder, "First row: ");

     // If we have multiple merge fields with the same FieldName,
     // they will receive data from the same row of the data source and display the same value after the merge.
     // A NEXT field tells the mail merge instantly to move down one row,
     // which means any MERGEFIELDs that follow the NEXT field will receive data from the next row.
     // Make sure never to try to skip to the next row while already on the last row.
     FieldNext fieldNext = (FieldNext) builder.insertField(FieldType.FIELD_NEXT, true);

     Assert.assertEquals(" NEXT ", fieldNext.getFieldCode());

     // After the merge, the data source values that these MERGEFIELDs accept
     // will end up on the same page as the MERGEFIELDs above.
     insertMergeFields(builder, "Second row: ");

     // A NEXTIF field has the same function as a NEXT field,
     // but it skips to the next row only if a statement constructed by the following 3 properties is true.
     FieldNextIf fieldNextIf = (FieldNextIf) builder.insertField(FieldType.FIELD_NEXT_IF, true);
     fieldNextIf.setLeftExpression("5");
     fieldNextIf.setRightExpression("2 + 3");
     fieldNextIf.setComparisonOperator("=");

     Assert.assertEquals(" NEXTIF  5 = \"2 + 3\"", fieldNextIf.getFieldCode());

     // If the comparison asserted by the above field is correct,
     // the following 3 merge fields will take data from the third row.
     // Otherwise, these fields will take data from row 2 again.
     insertMergeFields(builder, "Third row: ");

     doc.getMailMerge().execute(table);

     // Our data source has 3 rows, and we skipped rows twice.
     // Our output document will have 1 page with data from all 3 rows.
     doc.save(getArtifactsDir() + "Field.NEXT.NEXTIF.docx");
 }

 /// 
 /// Uses a document builder to insert MERGEFIELDs for a data source that contains columns named "Courtesy Title", "First Name" and "Last Name".
 /// 
 public void insertMergeFields(final DocumentBuilder builder, final String firstFieldTextBefore) throws Exception {
     insertMergeField(builder, "Courtesy Title", firstFieldTextBefore, " ");
     insertMergeField(builder, "First Name", null, " ");
     insertMergeField(builder, "Last Name", null, null);
     builder.insertParagraph();
 }

 /// 
 /// Uses a document builder to insert a MERRGEFIELD with specified properties.
 /// 
 public void insertMergeField(final DocumentBuilder builder, final String fieldName, final String textBefore, final String textAfter) throws Exception {
     FieldMergeField field = (FieldMergeField) builder.insertField(FieldType.FIELD_MERGE_FIELD, true);
     field.setFieldName(fieldName);
     field.setTextBefore(textBefore);
     field.setTextAfter(textAfter);
 }
 

Parameters:

Parameter	Type	Description
value	java.lang.String	The left part of the comparison expression.

setLocaleId(int value)

public void setLocaleId(int value)

Sets the LCID of the field.

Examples:

Shows how to insert a field and work with its locale.

 Document doc = new Document();
 DocumentBuilder builder = new DocumentBuilder(doc);

 // Insert a DATE field, and then print the date it will display.
 // Your thread's current culture determines the formatting of the date.
 Field field = builder.insertField("DATE");
 System.out.println(MessageFormat.format("Today''s date, as displayed in the \"{0}\" culture: {1}", Locale.getDefault().getDisplayLanguage(), field.getResult()));

 Assert.assertEquals(1033, field.getLocaleId());
 // Changing the culture of our thread will impact the result of the DATE field.
 // Another way to get the DATE field to display a date in a different culture is to use its LocaleId property.
 // This way allows us to avoid changing the thread's culture to get this effect.
 doc.getFieldOptions().setFieldUpdateCultureSource(FieldUpdateCultureSource.FIELD_CODE);
 CultureInfo de = new CultureInfo("de-DE");
 field.setLocaleId(1031);
 field.update();

 System.out.println(MessageFormat.format("Today''s date, as displayed according to the \"{0}\" culture: {1}", Locale.forLanguageTag(LocaleUtil.getLocaleFromLCID(field.getLocaleId())).getDisplayLanguage(), field.getResult()));
 

Parameters:

Parameter	Type	Description
value	int	The LCID of the field.

setResult(String value)

public void setResult(String value)

Sets text that is between the field separator and field end.

Examples:

Shows how to insert a field into a document using a field code.

 Document doc = new Document();
 DocumentBuilder builder = new DocumentBuilder(doc);

 Field dateField = builder.insertField("DATE \\* MERGEFORMAT");

 Assert.assertEquals(FieldType.FIELD_DATE, dateField.getType());
 Assert.assertEquals("DATE \\* MERGEFORMAT", dateField.getFieldCode());
 

Parameters:

Parameter	Type	Description
value	java.lang.String	Text that is between the field separator and field end.

setRightExpression(String value)

public void setRightExpression(String value)

Sets the right part of the comparison expression.

Examples:

Shows how to use NEXT/NEXTIF fields to merge multiple rows into one page during a mail merge.

 public void fieldNext() throws Exception {
     Document doc = new Document();
     DocumentBuilder builder = new DocumentBuilder(doc);

     // Create a data source for our mail merge with 3 rows.
     // A mail merge that uses this table would normally create a 3-page document.
     DataTable table = new DataTable("Employees");
     table.getColumns().add("Courtesy Title");
     table.getColumns().add("First Name");
     table.getColumns().add("Last Name");
     table.getRows().add("Mr.", "John", "Doe");
     table.getRows().add("Mrs.", "Jane", "Cardholder");
     table.getRows().add("Mr.", "Joe", "Bloggs");

     insertMergeFields(builder, "First row: ");

     // If we have multiple merge fields with the same FieldName,
     // they will receive data from the same row of the data source and display the same value after the merge.
     // A NEXT field tells the mail merge instantly to move down one row,
     // which means any MERGEFIELDs that follow the NEXT field will receive data from the next row.
     // Make sure never to try to skip to the next row while already on the last row.
     FieldNext fieldNext = (FieldNext) builder.insertField(FieldType.FIELD_NEXT, true);

     Assert.assertEquals(" NEXT ", fieldNext.getFieldCode());

     // After the merge, the data source values that these MERGEFIELDs accept
     // will end up on the same page as the MERGEFIELDs above.
     insertMergeFields(builder, "Second row: ");

     // A NEXTIF field has the same function as a NEXT field,
     // but it skips to the next row only if a statement constructed by the following 3 properties is true.
     FieldNextIf fieldNextIf = (FieldNextIf) builder.insertField(FieldType.FIELD_NEXT_IF, true);
     fieldNextIf.setLeftExpression("5");
     fieldNextIf.setRightExpression("2 + 3");
     fieldNextIf.setComparisonOperator("=");

     Assert.assertEquals(" NEXTIF  5 = \"2 + 3\"", fieldNextIf.getFieldCode());

     // If the comparison asserted by the above field is correct,
     // the following 3 merge fields will take data from the third row.
     // Otherwise, these fields will take data from row 2 again.
     insertMergeFields(builder, "Third row: ");

     doc.getMailMerge().execute(table);

     // Our data source has 3 rows, and we skipped rows twice.
     // Our output document will have 1 page with data from all 3 rows.
     doc.save(getArtifactsDir() + "Field.NEXT.NEXTIF.docx");
 }

 /// 
 /// Uses a document builder to insert MERGEFIELDs for a data source that contains columns named "Courtesy Title", "First Name" and "Last Name".
 /// 
 public void insertMergeFields(final DocumentBuilder builder, final String firstFieldTextBefore) throws Exception {
     insertMergeField(builder, "Courtesy Title", firstFieldTextBefore, " ");
     insertMergeField(builder, "First Name", null, " ");
     insertMergeField(builder, "Last Name", null, null);
     builder.insertParagraph();
 }

 /// 
 /// Uses a document builder to insert a MERRGEFIELD with specified properties.
 /// 
 public void insertMergeField(final DocumentBuilder builder, final String fieldName, final String textBefore, final String textAfter) throws Exception {
     FieldMergeField field = (FieldMergeField) builder.insertField(FieldType.FIELD_MERGE_FIELD, true);
     field.setFieldName(fieldName);
     field.setTextBefore(textBefore);
     field.setTextAfter(textAfter);
 }
 

Parameters:

Parameter	Type	Description
value	java.lang.String	The right part of the comparison expression.

unlink()

public boolean unlink()

Performs the field unlink.

Remarks:

Replaces the field with its most recent result.

Some fields, such as XE (Index Entry) fields and SEQ (Sequence) fields, cannot be unlinked.

Examples:

Shows how to unlink a field.

 Document doc = new Document(getMyDir() + "Linked fields.docx");
 doc.getRange().getFields().get(1).unlink();
 

Returns: boolean - true if the field has been unlinked, otherwise false .

update()

public void update()

Performs the field update. Throws if the field is being updated already.

Examples:

Shows how to insert a field into a document using FieldType.

 Document doc = new Document();
 DocumentBuilder builder = new DocumentBuilder(doc);

 // Insert two fields while passing a flag which determines whether to update them as the builder inserts them.
 // In some cases, updating fields could be computationally expensive, and it may be a good idea to defer the update.
 doc.getBuiltInDocumentProperties().setAuthor("John Doe");
 builder.write("This document was written by ");
 builder.insertField(FieldType.FIELD_AUTHOR, updateInsertedFieldsImmediately);

 builder.insertParagraph();
 builder.write("\nThis is page ");
 builder.insertField(FieldType.FIELD_PAGE, updateInsertedFieldsImmediately);

 Assert.assertEquals(" AUTHOR ", doc.getRange().getFields().get(0).getFieldCode());
 Assert.assertEquals(" PAGE ", doc.getRange().getFields().get(1).getFieldCode());

 if (updateInsertedFieldsImmediately) {
     Assert.assertEquals("John Doe", doc.getRange().getFields().get(0).getResult());
     Assert.assertEquals("1", doc.getRange().getFields().get(1).getResult());
 } else {
     Assert.assertEquals("", doc.getRange().getFields().get(0).getResult());
     Assert.assertEquals("", doc.getRange().getFields().get(1).getResult());

     // We will need to update these fields using the update methods manually.
     doc.getRange().getFields().get(0).update();

     Assert.assertEquals("John Doe", doc.getRange().getFields().get(0).getResult());

     doc.updateFields();

     Assert.assertEquals("1", doc.getRange().getFields().get(1).getResult());
 }
 

Shows how to format field results.

 Document doc = new Document();
 DocumentBuilder builder = new DocumentBuilder(doc);

 // Use a document builder to insert a field that displays a result with no format applied.
 Field field = builder.insertField("= 2 + 3");

 Assert.assertEquals("= 2 + 3", field.getFieldCode());
 Assert.assertEquals("5", field.getResult());

 // We can apply a format to a field's result using the field's properties.
 // Below are three types of formats that we can apply to a field's result.
 // 1 -  Numeric format:
 FieldFormat format = field.getFormat();
 format.setNumericFormat("$###.00");
 field.update();

 Assert.assertEquals("= 2 + 3 \\# $###.00", field.getFieldCode());
 Assert.assertEquals("$  5.00", field.getResult());

 // 2 -  Date/time format:
 field = builder.insertField("DATE");
 format = field.getFormat();
 format.setDateTimeFormat("dddd, MMMM dd, yyyy");
 field.update();

 Assert.assertEquals("DATE \\@ \"dddd, MMMM dd, yyyy\"", field.getFieldCode());
 System.out.println("Today's date, in {format.DateTimeFormat} format:\n\t{field.Result}");

 // 3 -  General format:
 field = builder.insertField("= 25 + 33");
 format = field.getFormat();
 format.getGeneralFormats().add(GeneralFormat.LOWERCASE_ROMAN);
 format.getGeneralFormats().add(GeneralFormat.UPPER);
 field.update();

 int index = 0;
 Iterator generalFormatEnumerator = format.getGeneralFormats().iterator();
 while (generalFormatEnumerator.hasNext()) {
     int value = generalFormatEnumerator.next();
     System.out.println(MessageFormat.format("General format index {0}: {1}", index++, value));
 }

 Assert.assertEquals("= 25 + 33 \\* roman \\* Upper", field.getFieldCode());
 Assert.assertEquals("LVIII", field.getResult());
 Assert.assertEquals(2, format.getGeneralFormats().getCount());
 Assert.assertEquals(GeneralFormat.LOWERCASE_ROMAN, format.getGeneralFormats().get(0));

 // We can remove our formats to revert the field's result to its original form.
 format.getGeneralFormats().remove(GeneralFormat.LOWERCASE_ROMAN);
 format.getGeneralFormats().removeAt(0);
 Assert.assertEquals(0, format.getGeneralFormats().getCount());
 field.update();

 Assert.assertEquals("= 25 + 33  ", field.getFieldCode());
 Assert.assertEquals("58", field.getResult());
 Assert.assertEquals(0, format.getGeneralFormats().getCount());
 

update(boolean ignoreMergeFormat)

public void update(boolean ignoreMergeFormat)

Performs a field update. Throws if the field is being updated already.

Examples:

Shows how to preserve or discard INCLUDEPICTURE fields when loading a document.

 Document doc = new Document();
 DocumentBuilder builder = new DocumentBuilder(doc);

 FieldIncludePicture includePicture = (FieldIncludePicture) builder.insertField(FieldType.FIELD_INCLUDE_PICTURE, true);
 includePicture.setSourceFullName(getImageDir() + "Transparent background logo.png");
 includePicture.update(true);

 try (ByteArrayOutputStream docStream = new ByteArrayOutputStream()) {
     doc.save(docStream, new OoxmlSaveOptions(SaveFormat.DOCX));

     // We can set a flag in a LoadOptions object to decide whether to convert all INCLUDEPICTURE fields
     // into image shapes when loading a document that contains them.
     LoadOptions loadOptions = new LoadOptions();
     {
         loadOptions.setPreserveIncludePictureField(preserveIncludePictureField);
     }

     doc = new Document(new ByteArrayInputStream(docStream.toByteArray()), loadOptions);
     FieldCollection fieldCollection = doc.getRange().getFields();

     if (preserveIncludePictureField) {
         Assert.assertTrue(IterableUtils.matchesAny(fieldCollection, f -> f.getType() == FieldType.FIELD_INCLUDE_PICTURE));

         doc.updateFields();
         doc.save(getArtifactsDir() + "Field.PreserveIncludePicture.docx");
     } else {
         Assert.assertFalse(IterableUtils.matchesAny(fieldCollection, f -> f.getType() == FieldType.FIELD_INCLUDE_PICTURE));
     }
 }
 

Parameters:

Parameter	Type	Description
ignoreMergeFormat	boolean	If true then direct field result formatting is abandoned, regardless of the MERGEFORMAT switch, otherwise normal update is performed.