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
.getElementProperty( ReportItem.DATA_SET_PROP ) );
		assertEquals( null, textHandle.getDataSet( ) );
	}
	/**
	 * Tests the special "vertical-align" properties of report items that reside
	 * in cells.
	 * 
	 * @throws Exception
	 */
	public void testCssProperties( ) throws Exception
	{
		openDesign( "ReportItemHandleTest.xml" );  
		
		LabelHandle label = (LabelHandle) designHandle
				.findElement( "nested label1" ); 
		assertEquals( DesignChoiceConstants.VERTICAL_ALIGN_TOP, label
				.getProperty( Style.VERTICAL_ALIGN_PROP ) );
		label = (LabelHandle) designHandle.findElement( "nested label2" ); 
		assertEquals( DesignChoiceConstants.VERTICAL_ALIGN_BOTTOM, label
				.getProperty( Style.VERTICAL_ALIGN_PROP ) );
		label = (LabelHandle) designHandle.findElement( "nested label3" ); 
		assertEquals( DesignChoiceConstants.VERTICAL_ALIGN_MIDDLE, label
				.getProperty( Style.VERTICAL_ALIGN_PROP ) );
	}
	/**
	 * Tests the function for adding bound data columns.
	 * 
	 * @throws Exception
	 */
	public void testBoundDataColumns( ) throws Exception