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
memberHandle.setValue( "noformat" ); 
		}
		catch ( PropertyValueException e )
		{
			assertEquals(
					PropertyValueException.DESIGN_EXCEPTION_CHOICE_NOT_FOUND, e
							.getErrorCode( ) );
		}
		memberHandle = structHandle.getMember( HideRule.VALUE_EXPR_MEMBER );
		memberHandle.setValue( "10*20" ); 
		DataItemHandle dataHandle = (DataItemHandle) designHandle
				.findElement( "bodyData" ); 		
		rules = dataHandle.visibilityRulesIterator( );
		
		structHandle = (StructureHandle) rules.next( );
		structHandle = (StructureHandle) rules.next( );
		assertNotNull( structHandle );
		memberHandle = structHandle.getMember( HideRule.FORMAT_MEMBER );
		memberHandle.setValue( DesignChoiceConstants.FORMAT_TYPE_REPORTLET );
		memberHandle = structHandle.getMember( HideRule.VALUE_EXPR_MEMBER );
		memberHandle.setValue( "bodyData 2nd rule." ); 
		
		structHandle = (StructureHandle) rules.next( );
		assertNull( structHandle );
	}
	/**
	 * Tests common properties on a report item.
	 * 
	 * 
	 * @throws Exception