Bug 149251 Inconsistent Handling of a Non-inheritable ROM Property
For a ROM property defined to be non-inheritable, an empty string property value should be consistently handled as an empty string, not as null. For example, an oda.dataSource extension defines a data source property with canInherit=false. When a oda-data-source handle get saved in a report design, it correctly includes the tag for such property, even when an empty string value is specified. <oda-data-source extensionID="my.oda.plugin" name="my Data Source" id="24"> ... <property name="ApplicationServer"></property> </oda-data-source> However, later when using the DE API to read its property value, a null is returned. Then when the report design is subsequently saved, the property tag is lost. Expects that an empty string value of a non-inhertiable property should be preserved.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/command/PropertyCommand.java
}
		stack.commit( );
	}
	/**
	 * Validates the values of the item members.
	 * 
	 * @param ref
	 *            reference to a list.
	 * @param item
	 *            the item to check
	 * @throws SemanticException
	 *             if the item has any member with invalid value or if the given
	 *             structure is not of a valid type that can be contained in the
	 *             list.
	 */
	private void checkItemName( MemberRef memberRef, String newName )
			throws SemanticException
	{
		PropertyDefn propDefn = memberRef.getPropDefn( );
		Structure structure = memberRef.getStructure( module, element );
		List errors = StructureListValidator.getInstance( )
				.validateForRenaming( element.getHandle( module ), propDefn,
						memberRef.getList( module, element ), structure,
						memberRef.getMemberDefn( ), newName );
		if ( errors.size( ) > 0 )
		{
			throw (PropertyValueException) errors.get( 0 );
		}
	}
}