Bug 185898 ReportItemHandle needs to add two method: getAvailableDataBindingReferenceList and getDataBindingType.
ReportItemHandle needs to add two method: getAvailableDataBindingReferenceList and getDataBindingType. The first method provider the available ReportItem list of DataBindingReference. The second method provider the type of the DataBinding.
model/org.eclipse.birt.report.model.tests/test/org/eclipse/birt/report/model/api/ReportItemHandleTest.java
"toc", labelHandle.getStringProperty( IReportItemModel.TOC_PROP ) );
	}
	/**
	 * Tests addcolumnBinding method.
	 * 
	 * @throws SemanticException
	 * @throws DesignFileException
	 */
	public void testColumnBinding( ) throws SemanticException
	{
		createDesign( );
		TableHandle tableHandle = designHandle.getElementFactory( )
				.newTableItem( "new table" ); 
		designHandle.getBody( ).add( tableHandle );
		tableHandle = (TableHandle) designHandle.findElement( "new table" ); 
		ComputedColumn col = StructureFactory.createComputedColumn( );
		col.setName( null );
		col.setExpression( "dataSetRow[\"CUSTOMERNUMBER\"]" ); 
		
		assertNull( tableHandle.addColumnBinding( null, true ) );
		
		try
		{
			tableHandle.addColumnBinding( col, true );
			fail( );
		}
		catch ( SemanticException e )
		{
			assertEquals(
					PropertyValueException.DESIGN_EXCEPTION_VALUE_REQUIRED, e