com.qoppa.pdf.form

Interface AcroForm

public interface AcroForm

This class represents the AcroForm content in a PDF document. AcroForms are the form segment in interactive PDF documents. This class can be used to get information about the fields in the PDF document and to get references to the fields to set and get their values.

Author:

Qoppa Software

Method Summary

Modifier and Type	Method and Description
void	exportAsCSV(OutputStream os, boolean exportEmpty) Export field values in comma-separated-value format.
void	exportAsCSV(String fileName, boolean exportEmpty) Export field values in comma-separated-value format.
void	exportAsFDF(OutputStream outStream, String pathToPDFFile, boolean exportEmptyFields) Exports AcroForm field data to an output stream in FDF format.
void	exportAsFDF(String fileName, boolean exportEmptyFields) Exports AcroForm field data to a file in FDF format.
void	exportAsText(OutputStream os, boolean exportEmpty) Export field values as text (separated by tabs).
void	exportAsText(String fileName, boolean exportEmpty) Export field values as text (separated by tabs).
void	exportAsXDP(OutputStream outStream, String pdfReference, boolean exportEmptyFields) Exports XFA field data to an OutputStream.
void	exportAsXDP(String fileName, boolean exportEmptyFields) Exports XFA field data to a file in XDP format.
void	exportAsXFDF(OutputStream outStream, String pathToPDFFile, boolean exportEmptyFields) Exports AcroForm field data to an output stream in XML format.
void	exportAsXFDF(String fileName, boolean exportEmptyFields) Exports AcroForm field data to a file in XFDF format.
void	exportAsXML(OutputStream outStream, boolean useHierarchy, boolean exportEmptyFields) Export field values in a simple XML format.
void	exportAsXML(String fileName, boolean useHierarchy, boolean exportEmptyFields) Export field values in a simple XML format.
Vector<FormField>	getCalculationOrder() Gets the list of fields with calculate actions in the correct order.
FormField	getField(String fieldName) Gets a field by name.
Vector<FormField>	getFieldList() Gets the list of fields in this AcroForm.
Vector<SignatureField>	getSignatureFields() Gets a list of signature fields, if any.
boolean	hasXFA() Returns true if this AcroForm has Adobe XML Forms Architecture (XFA) data.
void	importFDF(InputStream inStream) Imports AcroForm field data from an input stream in FDF format.
void	importFDF(String fileName) Import AcroForm field data from a file in FDF Format.
void	importXDP(InputStream inStream) Imports XFA field data from an InputStream in XDP format.
void	importXDP(String fileName) Imports XFA field data from a file in XDP format.
void	importXFDF(InputStream inStream) Imports AcroForm field data from an input stream in XFDF format.
void	importXFDF(String fileName) Imports AcroForm fields data from a file in XFDF Format.
void	importXFDF(com.qoppa.nanoxml.XMLElement topElement) Import AcroForm field data from an xml element representing the top element of an fdf file.
boolean	isXFADynamic() Returns true if this AcroForm has Adobe XML Forms Architecture (XFA) data, and it is a Dynamic Form.
boolean	isXFAStatic() Returns true if this AcroForm has Adobe XML Forms Architecture (XFA) data, and it is a Static Form.
void	removeXFA() Removes the Adobe XML Forms Architecture (XFA) data from this AcroForm if present.
void	resetFields() Reset the form fields to their default value.

Method Detail

exportAsXFDF

void exportAsXFDF(String fileName,
                  boolean exportEmptyFields)
           throws PDFException

Exports AcroForm field data to a file in XFDF format.

Parameters:

fileName - The name of the file to export the data to.

exportEmptyFields - flag to indicate whether empty or null fields should be exported.

Throws:

PDFException

exportAsFDF

void exportAsFDF(String fileName,
                 boolean exportEmptyFields)
          throws PDFException,
                 IOException

Exports AcroForm field data to a file in FDF format.

Parameters:

exportEmptyFields - flag to indicate whether empty or null fields should be exported.

fileName - The name of the file to export the data to.

Throws:

PDFException

IOException

exportAsXDP

void exportAsXDP(String fileName,
                 boolean exportEmptyFields)
          throws PDFException,
                 IOException

Exports XFA field data to a file in XDP format.

Parameters:

fileName - The name of the file to export the data to.

exportEmptyFields - flag to indicate whether empty or null fields should be exported.

Throws:

PDFException

IOException

exportAsXDP

void exportAsXDP(OutputStream outStream,
                 String pdfReference,
                 boolean exportEmptyFields)
          throws PDFException,
                 IOException

Exports XFA field data to an OutputStream. The output stream is left open (NOT closed) after writing the XDP data.

Parameters:

outStream - The output stream to write the data to.

pdfReference - Reference to the PDF file. This is used to the pdf/href element in the XDP file. If null, the pdf/href element is not added to the output.

exportEmptyFields - flag to indicate whether empty or null fields should be exported.

Throws:

PDFException

IOException

exportAsXFDF

void exportAsXFDF(OutputStream outStream,
                  String pathToPDFFile,
                  boolean exportEmptyFields)
           throws PDFException

Exports AcroForm field data to an output stream in XML format.

Parameters:

outStream - The output stream to write the data to.

pathToPDFFile - is the relative path from the fdf file to the pdf file name. This parameter can be left null. This parameter is used to fill the pdf file name entry in the FDF file, the file entry will be set to pathToPDFFile + fileName The file entry is used when you open an fdf file to be able to locate the corresponding pdf file. Example of pathToPDFFile ../qoppa/mydir

exportEmptyFields - flag to indicate whether empty or null fields should be exported.

Throws:

PDFException - Thrown if there are errors exporting the field data.

exportAsFDF

void exportAsFDF(OutputStream outStream,
                 String pathToPDFFile,
                 boolean exportEmptyFields)
          throws PDFException,
                 IOException

Exports AcroForm field data to an output stream in FDF format.

Parameters:

outStream - The output stream to write the data to.

pathToPDFFile - is the relative path from the fdf file to the pdf file name. This parameter can be left null. This parameter is used to fill the pdf file name entry in the FDF file, the file entry will be set to pathToPDFFile + fileName The file entry is used when you open an fdf file to be able to locate the corresponding pdf file.

exportEmptyFields - flag to indicate whether empty or null fields should be exported. Example of pathToPDFFile ../qoppa/mydir

Throws:

PDFException

IOException

getFieldList

Vector<FormField> getFieldList()

Gets the list of fields in this AcroForm. The list returned contains objects of type FormField.

Returns:

List of fields in the AcroForm.

getSignatureFields

Vector<SignatureField> getSignatureFields()

Gets a list of signature fields, if any. The list returned contains objects of type SignatureField.

Returns:

List of signature fields (if any) in the AcroForm. If there are no fields, this method returns an empty list.

getField

FormField getField(String fieldName)

Gets a field by name. As fields can be hierarchical, names of fields can be hierarchical: choices.choice1 would refer to a field named choice1 whose parent is a field named choices.

Parameters:

fieldName - The name of a field in hierarchical form.

Returns:

AFField The field referenced by the name, null if there is no field by that name.

importFDF

void importFDF(String fileName)
        throws PDFException

Import AcroForm field data from a file in FDF Format.

Parameters:

fileName - The name of the FDF file to import the data from.

Throws:

PDFException

importFDF

void importFDF(InputStream inStream)
        throws PDFException

Imports AcroForm field data from an input stream in FDF format.

Parameters:

inStream - The input stream in FDF format to read the data from.

Throws:

PDFException

importXFDF

void importXFDF(String fileName)
         throws PDFException

Imports AcroForm fields data from a file in XFDF Format.

Parameters:

fileName - The name of the XFDF file to import the data from.

Throws:

PDFException

importXDP

void importXDP(String fileName)
        throws PDFException,
               IOException

Imports XFA field data from a file in XDP format.

Parameters:

fileName - The name of the XDP file to read.

Throws:

PDFException - Thrown if there is an error importing the XDP field data.

IOException - Thrown if there is a problem reading the XDP file.

importXDP

void importXDP(InputStream inStream)
        throws PDFException,
               IOException

Imports XFA field data from an InputStream in XDP format. The input stream is left open (NOT closed) after reading the XDP data.

Parameters:

inStream - The input stream to read the XDP data from.

Throws:

PDFException - Thrown if there is an error importing the XDP field data.

IOException - Thrown if there is an error reading the input stream.

importXFDF

void importXFDF(com.qoppa.nanoxml.XMLElement topElement)
         throws PDFException

Import AcroForm field data from an xml element representing the top element of an fdf file.

Parameters:

topElement - The xml element representing the XFDF file.

Throws:

PDFException

importXFDF

void importXFDF(InputStream inStream)
         throws PDFException

Imports AcroForm field data from an input stream in XFDF format.

Parameters:

inStream - The input stream in XFDF format to read the data from.

Throws:

PDFException

resetFields

void resetFields()
          throws PDFException

Reset the form fields to their default value. If there is no default value, then the value is set to null.

Throws:

PDFException

exportAsXML

void exportAsXML(OutputStream outStream,
                 boolean useHierarchy,
                 boolean exportEmptyFields)
          throws PDFException,
                 IOException

Export field values in a simple XML format.

Parameters:

outStream - Output stream to write the XML to.

useHierarchy - Preserve the hierarchy in the form in the XML output. If this parameter is set to false, the output XML will have all the fields together in a single level below the root.

Throws:

PDFException

IOException

exportAsXML

void exportAsXML(String fileName,
                 boolean useHierarchy,
                 boolean exportEmptyFields)
          throws PDFException,
                 IOException

Export field values in a simple XML format.

Parameters:

fileName - Name of the file to output the XML to.

useHierarchy - Preserve the hierarchy in the form in the XML output. If this parameter is set to false, the output XML will have all the fields together in a single level below the root.

exportEmptyFields - flag to indicate whether empty or null fields should be exported.

Throws:

PDFException

IOException

exportAsCSV

void exportAsCSV(OutputStream os,
                 boolean exportEmpty)
          throws IOException

Export field values in comma-separated-value format.

Parameters:

os - Output stream to write the CSV to.

exportEmpty - Flag to indicate whether empty or null fields should be exported.

Throws:

IOException

exportAsCSV

void exportAsCSV(String fileName,
                 boolean exportEmpty)
          throws IOException

Export field values in comma-separated-value format.

Parameters:

fileName - Name of the file to write the CSV to.

exportEmpty - Flag to indicate whether empty or null fields should be exported.

Throws:

IOException

exportAsText

void exportAsText(OutputStream os,
                  boolean exportEmpty)
           throws IOException

Export field values as text (separated by tabs).

Parameters:

os - Output stream to write the text to.

exportEmpty - Flag to indicate whether empty or null fields should be exported.

Throws:

IOException

exportAsText

void exportAsText(String fileName,
                  boolean exportEmpty)
           throws IOException

Export field values as text (separated by tabs).

Parameters:

fileName - Name of the file to write the text to.

exportEmpty - Flag to indicate whether empty or null fields should be exported.

Throws:

IOException

hasXFA

boolean hasXFA()

Returns true if this AcroForm has Adobe XML Forms Architecture (XFA) data.

Returns:

true if this form has XFA data, otherwise false

removeXFA

void removeXFA()

Removes the Adobe XML Forms Architecture (XFA) data from this AcroForm if present.

getCalculationOrder

Vector<FormField> getCalculationOrder()

Gets the list of fields with calculate actions in the correct order. May return null.

isXFAStatic

boolean isXFAStatic()

Returns true if this AcroForm has Adobe XML Forms Architecture (XFA) data, and it is a Static Form.

Returns:

true if this form has Static XFA data, otherwise false

isXFADynamic

boolean isXFADynamic()

Returns true if this AcroForm has Adobe XML Forms Architecture (XFA) data, and it is a Dynamic Form.

Returns:

true if this form has Dynamic XFA data, otherwise false