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 ( struct == null )
		{
			assert propDefn != null;
			
			
			struct = createStructure( (StructureDefn) propDefn.getStructDefn( ) );
			Structure.StructureContext structContext = new Structure.StructureContext(
					element, propDefn.getName( ) );
			( (Structure) struct ).setContext( structContext );
		}
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.util.AbstractParseState#startElement(java.lang.String)
	 */
	public AbstractParseState startElement( String tagName )
	{
		if ( tagName.equalsIgnoreCase( DesignSchemaConstants.PROPERTY_TAG ) )
			return new PropertyState( handler, element, propDefn, struct );
		if ( tagName
				.equalsIgnoreCase( DesignSchemaConstants.ENCRYPTED_PROPERTY_TAG ) )
			return new EncryptedPropertyState( handler, element, propDefn,
					struct );
		if ( tagName.equalsIgnoreCase( DesignSchemaConstants.EXPRESSION_TAG ) )
			return new ExpressionState( handler, element, propDefn, struct );
		if ( tagName.equalsIgnoreCase( DesignSchemaConstants.XML_PROPERTY_TAG ) )
			return new XmlPropertyState( handler, element, propDefn, struct );
		if ( tagName.equalsIgnoreCase( DesignSchemaConstants.LIST_PROPERTY_TAG ) )