001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *     http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.commons.jxpath.ri;
018
019import java.io.Serializable;
020
021
022/**
023 * A qualified name: a combination of an optional namespace prefix
024 * and an local name.
025 *
026 * @author Dmitri Plotnikov
027 * @version $Revision: 652925 $ $Date: 2008-05-02 18:05:41 -0400 (Fri, 02 May 2008) $
028 */
029public class QName implements Serializable {
030    private static final long serialVersionUID = 7616199282015091496L;
031
032    private String prefix;
033    private String name;
034    private String qualifiedName;
035
036    /**
037     * Create a new QName.
038     * @param qualifiedName value
039     */
040    public QName(String qualifiedName) {
041        this.qualifiedName = qualifiedName;
042        int index = qualifiedName.indexOf(':');
043        prefix = index < 0 ? null : qualifiedName.substring(0, index);
044        name = index < 0 ? qualifiedName : qualifiedName.substring(index + 1);
045    }
046
047    /**
048     * Create a new QName.
049     * @param prefix ns
050     * @param localName String
051     */
052    public QName(String prefix, String localName) {
053        this.prefix = prefix;
054        this.name = localName;
055        this.qualifiedName = prefix == null ? localName : prefix + ':' + localName;
056    }
057
058    /**
059     * Get the prefix of this QName.
060     * @return String
061     */
062    public String getPrefix() {
063        return prefix;
064    }
065
066    /**
067     * Get the local name.
068     * @return String
069     */
070    public String getName() {
071        return name;
072    }
073
074    public String toString() {
075        return qualifiedName;
076    }
077
078    public int hashCode() {
079        return name.hashCode();
080    }
081
082    public boolean equals(Object object) {
083        if (this == object) {
084            return true;
085        }
086        if (!(object instanceof QName)) {
087            return false;
088        }
089        return qualifiedName.equals(((QName) object).qualifiedName);
090    }
091}