elemental.util.impl.JreMapFromIntTo Maven / Gradle / Ivy
/*
* Copyright 2011 Google Inc.
*
* Licensed 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 elemental.util.impl;
import java.util.ArrayList;
import java.util.HashMap;
import elemental.util.ArrayOf;
import elemental.util.ArrayOfInt;
import elemental.util.MapFromIntTo;
/**
* JRE implementation of MapFromIntTo for server and dev mode.
*/
public class JreMapFromIntTo implements MapFromIntTo {
/*
* TODO(cromwellian): this implemation uses JRE HashMap. A direct
* implementation would be more efficient.
*/
private HashMap map;
public JreMapFromIntTo() {
map = new HashMap();
}
JreMapFromIntTo(HashMap map) {
this.map = map;
}
@Override
public T get(int key) {
return map.get(key);
}
@Override
public boolean hasKey(int key) {
return map.containsKey(key);
}
@Override
public ArrayOfInt keys() {
return new JreArrayOfInt(new JreArrayOf(new ArrayList(map.keySet())));
}
@Override
public void put(int key, T value) {
map.put(key, value);
}
@Override
public void remove(int key) {
map.remove(key);
}
@Override
public ArrayOf values() {
return new JreArrayOf(new ArrayList(map.values()));
}
}