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/*
* 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.
*/
package org.apache.xerces.xni;
/**
* A structure that holds the components of an XML Namespaces qualified
* name.
*
* To be used correctly, the strings must be identical references for
* equal strings. Within the parser, these values are considered symbols
* and should always be retrieved from the SymbolTable.
*
* @see org.apache.xerces.util.SymbolTable
*
* @author Andy Clark, IBM
*
* @version $Id: QName.java 447247 2006-09-18 05:23:52Z mrglavas $
*/
public class QName
implements Cloneable {
//
// Data
//
/**
* The qname prefix. For example, the prefix for the qname "a:foo"
* is "a".
*/
public String prefix;
/**
* The qname localpart. For example, the localpart for the qname "a:foo"
* is "foo".
*/
public String localpart;
/**
* The qname rawname. For example, the rawname for the qname "a:foo"
* is "a:foo".
*/
public String rawname;
/**
* The URI to which the qname prefix is bound. This binding must be
* performed by a XML Namespaces aware processor.
*/
public String uri;
//
// Constructors
//
/** Default constructor. */
public QName() {
clear();
} // ()
/** Constructs a QName with the specified values. */
public QName(String prefix, String localpart, String rawname, String uri) {
setValues(prefix, localpart, rawname, uri);
} // (String,String,String,String)
/** Constructs a copy of the specified QName. */
public QName(QName qname) {
setValues(qname);
} // (QName)
//
// Public methods
//
/**
* Convenience method to set the values of the qname components.
*
* @param qname The qualified name to be copied.
*/
public void setValues(QName qname) {
prefix = qname.prefix;
localpart = qname.localpart;
rawname = qname.rawname;
uri = qname.uri;
} // setValues(QName)
/**
* Convenience method to set the values of the qname components.
*
* @param prefix The qname prefix. (e.g. "a")
* @param localpart The qname localpart. (e.g. "foo")
* @param rawname The qname rawname. (e.g. "a:foo")
* @param uri The URI binding. (e.g. "http://foo.com/mybinding")
*/
public void setValues(String prefix, String localpart, String rawname,
String uri) {
this.prefix = prefix;
this.localpart = localpart;
this.rawname = rawname;
this.uri = uri;
} // setValues(String,String,String,String)
/** Clears the values of the qname components. */
public void clear() {
prefix = null;
localpart = null;
rawname = null;
uri = null;
} // clear()
//
// Cloneable methods
//
/** Returns a clone of this object. */
public Object clone() {
return new QName(this);
} // clone():Object
//
// Object methods
//
/** Returns the hashcode for this object. */
public int hashCode() {
if (uri != null) {
return uri.hashCode() +
((localpart != null) ? localpart.hashCode() : 0);
}
return (rawname != null) ? rawname.hashCode() : 0;
} // hashCode():int
/** Returns true if the two objects are equal. */
public boolean equals(Object object) {
if (object instanceof QName) {
QName qname = (QName)object;
if (qname.uri != null) {
return uri == qname.uri && localpart == qname.localpart;
}
else if (uri == null) {
return rawname == qname.rawname;
}
// fall through and return not equal
}
return false;
} // equals(Object):boolean
/** Returns a string representation of this object. */
public String toString() {
StringBuffer str = new StringBuffer();
boolean comma = false;
if (prefix != null) {
str.append("prefix=\"").append(prefix).append('"');
comma = true;
}
if (localpart != null) {
if (comma) {
str.append(',');
}
str.append("localpart=\"").append(localpart).append('"');
comma = true;
}
if (rawname != null) {
if (comma) {
str.append(',');
}
str.append("rawname=\"").append(rawname).append('"');
comma = true;
}
if (uri != null) {
if (comma) {
str.append(',');
}
str.append("uri=\"").append(uri).append('"');
}
return str.toString();
} // toString():String
} // class QName