Bug 210507 Enhance Report engine to support multiple view
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/ir/EngineIRReader.java
readTableBandField( in, tableBand, fieldType );
		}
	}
	protected void readTableBandField( DataInputStream in,
			TableBandDesign tableBand, short fieldType ) throws IOException
	{
		readBandField( in, tableBand, fieldType );
	}
	protected void readGrid( DataInputStream in, GridItemDesign grid )
			throws IOException
	{
		while ( in.available( ) > 0 )
		{
			short fieldType = IOUtil.readShort( in );
			readGridField( in, grid, fieldType );
		}
	}
	protected void readGridField( DataInputStream in, GridItemDesign grid,
			short fieldType ) throws IOException
	{
		switch ( fieldType )
		{
			case FIELD_COLUMNS :
				int columnCount = IOUtil.readInt( in );
				for ( int i = 0; i < columnCount; i++ )
				{
					byte[] bytes = IOUtil.readBytes( in );
					ColumnDesign column = new ColumnDesign( );
					readColumn( new DataInputStream( new ByteArrayInputStream(
							bytes ) ), column );