/*
* Copyright 2015 McDowell
*
* 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 uk.kludje.experimental.collect.array;
import uk.kludje.experimental.collect.fixed.FixedList;
import java.util.AbstractList;
@SuppressWarnings("deprecation")
final class EmptyFixedList<E> extends AbstractList<E> implements FixedList<E> {
private static final FixedList<?> INSTANCE = new EmptyFixedList<>();
@Override
public E get(int index) {
throw new IndexOutOfBoundsException(String.valueOf(index));
}
@Override
public int size() {
return 0;
}
@Override
public FixedList<E> subList(int fromIndex, int toIndex) {
if (fromIndex != 0 || toIndex != 0) {
throw new IndexOutOfBoundsException();
}
return this;
}
public static <E> FixedList<E> emptyFixedList() {
@SuppressWarnings("unchecked")
FixedList<E> list = (FixedList<E>) INSTANCE;
return list;
}
}