com.sun.xml.rpc.util.StructMap Maven / Gradle / Ivy
/*
* Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package com.sun.xml.rpc.util;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
/**
* A Map that keeps track of the order in which entries are made. The
* values() method returns an unmodifiable List of the values
* in the order in which they were added. A new method,
* keys() has been added. It returns an unmodifiable List of the
* keys in the order in which they were added.
*
* @author JAX-RPC Development Team
*/
public class StructMap implements Map {
protected HashMap map = new HashMap();
protected ArrayList keys = new ArrayList();
protected ArrayList values = new ArrayList();
public int size() {
return map.size();
}
public boolean isEmpty() {
return map.isEmpty();
}
public boolean containsKey(Object key) {
return map.containsKey(key);
}
public boolean containsValue(Object value) {
return map.containsValue(value);
}
public Object get(Object key) {
return map.get(key);
}
public Object put(Object key, Object value) {
keys.add(key);
values.add(value);
return map.put(key, value);
}
public Object remove(Object key) {
Object value = map.get(key);
keys.remove(key);
values.remove(value);
return map.remove(key);
}
public void putAll(Map t) {
if (!(t instanceof StructMap))
throw new IllegalArgumentException("Cannot putAll members of anything other than a StructMap");
StructMap that = (StructMap) t;
for (int i = 0; i < that.keys.size(); ++i) {
put(that.keys.get(i), that.values.get(i));
}
}
public void clear() {
keys.clear();
values.clear();
map.clear();
}
public Set keySet() {
return map.keySet();
}
public Collection values() {
return Collections.unmodifiableList(values);
}
public Set entrySet() {
return map.entrySet();
}
public boolean equals(Object o) {
return map.equals(o);
}
public int hashCode() {
return map.hashCode() ^ keys.hashCode() ^ values.hashCode();
}
// new
public Collection keys() {
return Collections.unmodifiableList(keys);
}
public void set(int index, Object key, Object value) {
keys.set(index, key);
values.set(index, value);
map.put(key, value);
}
public void set(int index, Object value) {
Object key = keys.get(index);
values.set(index, value);
map.put(key, value);
}
}