http://xmlgraphics.apache.org/fop/: Apache FOP (Formatting Objects Processor) is the world's first print formatter driven by XSL formatting objects (XSL-FO) and the world's first output independent formatter. It is a Java application that reads a formatting object (FO) tree and renders the resulting pages to a specified output. Output formats currently supported include PDF, PCL, PS, AFP, TIFF, PNG, SVG, XML (area tree representation), Print, AWT and TXT. The primary output target is PDF. (Apache Software Foundation) 
/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/* $Id: ToBeImplementedProperty.java 1616590 2014-08-07 20:27:59Z gadams $ */

package org.apache.fop.fo.properties;

import org.apache.fop.fo.FObj;
import org.apache.fop.fo.PropertyList;


A special property for representing an as yet unimplemented property.

/**
 * A special property for representing an as yet unimplemented property.
 */
public class ToBeImplementedProperty extends Property {

    
A to be implemented property maker instance.

/**
     * A to be implemented property maker instance.
     */
    public static class Maker extends PropertyMaker {

        
Instantiate a to be implemented property maker instance.

Params:
  • propId – a property id
/**
         * Instantiate a to be implemented property maker instance.
         * @param propId a property id
         */
        public Maker(int propId) {
            super(propId);
        }

        @Override
        public Property convertProperty(Property p,
                                        PropertyList propertyList, FObj fo) {
            if (p instanceof ToBeImplementedProperty) {
                return p;
            }

            ToBeImplementedProperty val = new ToBeImplementedProperty(getPropId());
            return val;
        }
    }

    
Constructor

Params:
  • propId – id of Property
/**
     * Constructor
     * @param propId id of Property
     */
    public ToBeImplementedProperty(int propId) {

        //XXX: (mjg@recalldesign.com) This is a bit of a kluge, perhaps an
        //UnimplementedPropertyException or something similar should
        //get thrown here instead.

//         Log log = Hierarchy.getDefaultHierarchy().getLoggerFor("fop");
//         log.warn("property - \"" + propName
//                                + "\" is not implemented yet.");
    }

    @Override
    public int hashCode() {
        return 0;
    }

    @Override
    public boolean equals(Object obj) {
        /*
         * Since a PropertyCache is not used here, returning true helps the PropertyCache when a non
         * implemented property is part of an implemented one.
         */
        // @SuppressFBWarnings("EQ_ALWAYS_TRUE")
        return true;
    }
}