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/*
* Copyright (C) 2015 The Android Open Source Project
*
* 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 com.android.launcher3.util;
import android.util.LongSparseArray;
import java.util.Iterator;
/**
* Extension of {@link LongSparseArray} with some utility methods.
*/
public class LongArrayMap<E> extends LongSparseArray<E> implements Iterable<E> {
public boolean containsKey(long key) {
return indexOfKey(key) >= 0;
}
public boolean isEmpty() {
return size() <= 0;
}
@Override
public LongArrayMap<E> clone() {
return (LongArrayMap<E>) super.clone();
}
@Override
public Iterator<E> iterator() {
return new ValueIterator();
}
@Thunk class ValueIterator implements Iterator<E> {
private int mNextIndex = 0;
@Override
public boolean hasNext() {
return mNextIndex < size();
}
@Override
public E next() {
return valueAt(mNextIndex ++);
}
@Override
public void remove() {
throw new UnsupportedOperationException();
}
}
}
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