/*******************************************************************************
* Copyright (c) 2010 Robert "Unlogic" Olofsson (unlogic@unlogic.se).
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the GNU Lesser Public License v3
* which accompanies this distribution, and is available at
* http://www.gnu.org/licenses/lgpl-3.0-standalone.html
******************************************************************************/
package se.unlogic.standardutils.collections;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
public class StrictHashMap<Key, Value> implements StrictMap<Key, Value>{
HashMap<Key, Value> hashMap = new HashMap<Key, Value>();
public Value put(Key key, Value value) throws KeyAlreadyCachedException {
if (this.hashMap.containsKey(key)) {
throw new KeyAlreadyCachedException(key);
} else {
return hashMap.put(key, value);
}
}
public Value update(Key key, Value value) throws KeyNotCachedException {
if (this.hashMap.containsKey(key)) {
hashMap.remove(key);
return hashMap.put(key, value);
} else {
throw new KeyNotCachedException(key);
}
}
public Value remove(Object key) throws KeyNotCachedException {
if (hashMap.containsKey(key)) {
return hashMap.remove(key);
} else {
throw new KeyNotCachedException(key);
}
}
public void clear() {
hashMap.clear();
}
@Override
public Object clone() {
return hashMap.clone();
}
public boolean containsKey(Object key) {
return hashMap.containsKey(key);
}
public boolean containsValue(Object value) {
return hashMap.containsValue(value);
}
public Set<Entry<Key, Value>> entrySet() {
return hashMap.entrySet();
}
@Override
public boolean equals(Object o) {
return hashMap.equals(o);
}
public Value get(Object key) {
return hashMap.get(key);
}
@Override
public int hashCode() {
return hashMap.hashCode();
}
public boolean isEmpty() {
return hashMap.isEmpty();
}
public Set<Key> keySet() {
return hashMap.keySet();
}
public int size() {
return hashMap.size();
}
@Override
public String toString() {
return hashMap.toString();
}
public Collection<Value> values() {
return hashMap.values();
}
public void putAll(Map<? extends Key, ? extends Value> map) throws KeyAlreadyCachedException{
for (Entry<? extends Key, ? extends Value> entry : map.entrySet()) {
if (this.hashMap.containsKey(entry.getKey())) {
throw new KeyAlreadyCachedException(entry.getKey());
}
}
this.hashMap.putAll(map);
}
}