com.etymon.pjx.stream
Class PdfEncodeStream

java.lang.Object
  com.etymon.pjx.stream.PdfEncodeStream

public class PdfEncodeStream

extends java.lang.Object

Provides commonly used stream encoding functions. This class is synchronized.

Constructor Summary

PdfEncodeStream(PdfManager manager)
Constructs an instance of this class with a specified manager.

Method Summary

PdfStream

compressFlate(PdfStream stream) Encodes a stream using the Flate compression method (based on zlib/deflate).

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PdfEncodeStream

public PdfEncodeStream(PdfManager manager)

Constructs an instance of this class with a specified manager.

Parameters:

manager - the manager instance.

Method Detail

compressFlate

public PdfStream compressFlate(PdfStream stream)
                        throws java.io.IOException,
                               PdfFormatException

Encodes a stream using the Flate compression method (based on zlib/deflate). If the stream is already compressed with the Flate, LZW, RunLength, CCITTFax, JBIG2, or DCT method, then this method returns the original stream unmodified. This method uses PdfFlateFilter.encode(PdfStream) to perform the encoding.

Parameters:

stream - the stream to encode.

Returns:

the encoded stream, or the original stream if it is already compressed.

Throws:

java.io.IOException

PdfFormatException