Bug 133776 Oda DesignerState support on OdaDataSource
OdaDataSet supported Oda DesignerState. This feature is also need in OdaDataSource. Please add OdaDesignerState property to OdaDataSource element in ROM. Make the related changes.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/OdaDataSetHandle.java
*/
	public byte[] getDesigerStateContentAsBlob( )
	{
		Object value = getProperty( DESIGNER_STATE_PROP );
		if ( value == null )
			return null;
		assert value instanceof OdaDesignerState;
		return ( (OdaDesignerState) value ).getContentAsBlob( );
	}
	/**
	 * Returns the content of designer state as the byte.
	 * 
	 * @param content
	 *            the content of designer state as the byte.
	 * 
	 * @throws SemanticException
	 *             if designer state property is locked.
	 */
	public void setDesigerStateContentAsBlob( byte[] content )
			throws SemanticException
	{
		setDesignerStateMemberValue( OdaDesignerState.CONTENT_AS_BLOB_MEMBER,
				content );
	}
	/**
	 * Sets the version of designer state.
	 * 
	 * @param version
	 *            the version of designer state.
	 */