Bug 201038 The joint dataset from library can not be used and exception occurs when preview in dataset[07]
Description: The joint dataset from library can not be used and exception occurs when preview in dataset[07] Build number: 2.2.1.v20070824-0630 Steps to reproduce: 1, New a library and create two datasets ds1 and ds2 2, Creata a joint dataset ds3 using ds1 and ds2 3, Publish the library 4, New a report and using the Joint dataset and preview in joint dataset Expected result: The preview should be successful Actual result: Exception occurs Error log: java.lang.ClassCastException: org.eclipse.birt.report.model.metadata.ElementRefValue at org.eclipse.birt.report.model.command.AbstractPropertyCommand.setupStructureContext(AbstractPropertyCommand.java:534) at org.eclipse.birt.report.model.command.AbstractPropertyCommand.makeLocalCompositeValue(AbstractPropertyCommand.java:440) at org.eclipse.birt.report.model.command.ComplexPropertyCommand.doRemoveItem(ComplexPropertyCommand.java:456) at org.eclipse.birt.report.model.command.ComplexPropertyCommand.removeItem(ComplexPropertyCommand.java:393) at org.eclipse.birt.report.model.api.PropertyHandle.removeItem(PropertyHandle.java:317) at org.eclipse.birt.report.model.api.SimpleValueHandle.removeItem(SimpleValueHandle.java:453) at org.eclipse.birt.report.model.api.JointDataSetHandle.removeDataSet(JointDataSetHandle.java:128) at org.eclipse.birt.report.designer.data.ui.dataset.JointDataSetPage.modifyJointCondition(JointDataSetPage.java:989) at org.eclipse.birt.report.designer.data.ui.dataset.JointDataSetPage.canLeave(JointDataSetPage.java:963) at org.eclipse.birt.report.designer.data.ui.property.AbstractPropertyDialog.showPage(AbstractPropertyDialog.java:554) at org.eclipse.birt.report.designer.data.ui.property.AbstractPropertyDialog.showSelectionPage(AbstractPropertyDialog.java:467) at org.eclipse.birt.report.designer.data.ui.dataset.DataSetEditor.showSelectionPage(DataSetEditor.java:820) at org.eclipse.birt.report.designer.data.ui.property.AbstractPropertyDialog$3.run(AbstractPropertyDialog.java:425)
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/command/AbstractPropertyCommand.java
if ( value instanceof ElementRefValue
					&& tmpMemberDefn.getTypeCode( ) == IPropertyType.ELEMENT_REF_TYPE )
			{
				ElementRefValue refValue = (ElementRefValue) value;
				value = tmpMemberDefn.validateValue( module, refValue
						.getQualifiedReference( ) );
				checkRecursiveElementReference( tmpMemberDefn,
						(ElementRefValue) value );
			}
			else
			{
				if ( tmpMemberDefn.isList( )
						&& tmpMemberDefn.getStructDefn( ) != null )
				{
					checkItems( currentDefn, tmpMemberDefn, (List) value );
				}
				else
					value = tmpMemberDefn.validateValue( module, value );
			}
			item.setProperty( tmpMemberDefn, value );
		}
		if ( item instanceof Structure )
		{
			List errorList = ( (Structure) item ).validate( module, element );
			if ( errorList.size( ) > 0 )
			{
				throw (SemanticException) errorList.get( 0 );