| com.etymon.pjx.PdfObjectFilter
All known Subclasses: com.etymon.pjx.util.PdfReferencedObjects, com.etymon.pjx.util.PdfRenumberOffset,
| PdfObjectFilter | | public interface PdfObjectFilter (Code) | | A filtering function that allows examining and modifying PDF
objects recursively.
PdfObject.filter(PdfObjectFilter)PdfObject.filter(PdfObjectFilter) passes each object through
PdfObjectFilter.preFilter(PdfObject) preFilter(PdfObject) before
descending recursively into the object's contents (if it is a
container such as
PdfArray PdfArray or
PdfDictionaryPdfDictionary ). It then passes the (possibly modified) object
through
PdfObjectFilter.postFilter(PdfObject) postFilter(PdfObject) for a
second opportunity to examine or modify the object. The modified
object is not required to be of the same type as the original
object.
author:
Nassib Nassar |
| postFilter | | public PdfObject postFilter(PdfObject obj) throws PdfFormatException(Code) | | Examines a PDF object and optionally returns a modified
object. This method should return the original object or a
modified replacement. If no modifications are desired, it
should return the original object. This method may also
return null in order to discard the object. A
PdfArray PdfArray or
PdfDictionaryPdfDictionary object is considered to be a container, and
this method filters each element within it before filtering
the container as a whole. When this method receives a
container, that container's contents will have already been
filtered by this method.
Parameters:
obj - the object to examine. the "filtered" object.
throws:
PdfFormatException - |
| preFilter | | public PdfObject preFilter(PdfObject obj) throws PdfFormatException(Code) | | Examines a PDF object and optionally returns a modified
object. This method should return the original object or a
modified replacement. If no modifications are desired, it
should return the original object. This method may also
return null in order to discard the object;
however, this will cause
PdfObjectFilter.postFilter(PdfObject)postFilter(PdfObject) to be called with a
null value as its parameter. A
PdfArray PdfArray or
PdfDictionary PdfDictionary object is considered to be a container, and this method
filters the container as a whole before filtering each
element within it (assuming the elements are still present
in the modified object). When this method receives a
container, that container's contents will not yet have been
filtered by this method.
Parameters:
obj - the object to examine. the "filtered" object.
throws:
PdfFormatException - |
|
|