How to add contents in page header of Simple Master Page from Java

[pavi]

Hi...

I want to add logo and some text in page header of Master Page from java.

CellHandle cell = (CellHandle) row.getCells( ).get( 0 );
LabelHandle label = factory.newLabel( null );
cell.getContent( ).add( label );
label.setText( "Hello, world!" );
design.saveAs( "sample.rptdesign" );


This is what i am doing for Layout and it is working fine for layout. But i need to add header in master page. How this can be done
Help Needed...