Bug 176450 Support link to CSS Feature(Model Part)
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/parser/StructureState.java
if ( ( element instanceof DataSet ) )
		{
			if ( IDataSetModel.COMPUTED_COLUMNS_PROP
					.equalsIgnoreCase( propName ) )
			{
				CompatibleComputedColumnStructureState state = new CompatibleComputedColumnStructureState(
						handler, element, propDefn, list );
				state.setName( propName );
				return state;
			}
		}
		return super.generalJumpTo( );
	}
	/**
	 * Creates structure instance given the structure name.
	 * 
	 * @param structDefn
	 *            the definition of the structure to create
	 * @return the structure instance created.
	 */
	static IStructure createStructure( StructureDefn structDefn )
	{
		synchronized ( StructureState.class )
		{
			if ( structDict == null )
				populateStructDict( );
		}
		assert structDefn != null;
		assert structDict != null;
		IStructure struct = null;