public PDMemoryStream(byte[] buffer) 
{
        data = buffer;
}

This will create a new PDStream object.

Parameters:

buffer - The data for this in memory stream.

 public  void addCompression() 
{
        //no compression to add
}

If there are not compression filters on the current stream then this will add a compression filter, flate compression for example.

 public InputStream createInputStream() throws IOException 
{
        return new ByteArrayInputStream( data );
}

This will get a stream that can be read from.

 public OutputStream createOutputStream() throws IOException 
{
        throw new UnsupportedOperationException( "not supported for memory stream" );
}

This will get a stream that can be written to.

 public byte[] getByteArray() throws IOException 
{
        return data;
}

This will copy the stream into a byte array.

 public COSBase getCOSObject() 
{
        throw new UnsupportedOperationException( "not supported for memory stream" );
}

Convert this standard java object to a COS object.

 public List getDecodeParams() throws IOException 
{
        return null;
}

Get the list of decode parameters. Each entry in the list will refer to an entry in the filters list.

 public PDFileSpecification getFile() 
{
        return null;
}

This will get the file specification for this stream. This is only required for external files.

 public List getFileDecodeParams() throws IOException 
{
        return null;
}

Get the list of decode parameters. Each entry in the list will refer to an entry in the filters list.

 public List getFileFilters() 
{
        return null;
}

This will get the list of filters that are associated with this stream. Or null if there are none.

 public List getFilters() 
{
        return null;
}

This will get the list of filters that are associated with this stream. Or null if there are none.

 public int getLength() 
{
        return data.length;
}

This will get the length of the filtered/compressed stream. This is readonly in the PD Model and will be managed by this class.

 public PDMetadata getMetadata() 
{
        return null;
}

Get the metadata that is part of the document catalog. This will return null if there is no meta data for this object.

 public InputStream getPartiallyFilteredStream(List stopFilters) throws IOException 
{
        return createInputStream();
}

This will get a stream with some filters applied but not others. This is useful when doing images, ie filters = [flate,dct], we want to remove flate but leave dct

 public COSStream getStream() 
{
        throw new UnsupportedOperationException( "not supported for memory stream" );
}

Get the cos stream associated with this object.

 public  void setDecodeParams(List decodeParams) 
{
        //do nothing
}

This will set the list of decode params.

 public  void setFile(PDFileSpecification f) 
{
        //do nothing.
}

Set the file specification.

 public  void setFileDecodeParams(List decodeParams) 
{
        //do nothing
}

This will set the list of decode params.

 public  void setFileFilters(List filters) 
{
        //do nothing.
}

This will set the filters that are part of this stream.

 public  void setFilters(List filters) 
{
        throw new UnsupportedOperationException( "not supported for memory stream" );
}

This will set the filters that are part of this stream.

 public  void setMetadata(PDMetadata meta) 
{
        //do nothing
}

Set the metadata for this object. This can be null.