core/src/org/apache/pivot/util/ObservableListListener.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to you 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 org.apache.pivot.util;

import java.util.List;

/**
 * Observable list listener interface.
 *
 * @param <E>
 */
public interface ObservableListListener<E> {
    /**
     * Observable list listener adapter.
     */
    public static class Adapter<E> implements ObservableListListener<E> {
        @Override
        public void elementsAdded(ObservableList<E> list, int fromIndex, int toIndex) {
        }

        @Override
        public void elementsRemoved(ObservableList<E> list, int fromIndex, List<E> elements) {
        }

        @Override
        public void elementsUpdated(ObservableList<E> list, int fromIndex, List<E> previousElements) {
        }
    }

    public void elementsAdded(ObservableList<E> list, int fromIndex, int toIndex);
    public void elementsRemoved(ObservableList<E> list, int fromIndex, List<E> elements);
    public void elementsUpdated(ObservableList<E> list, int fromIndex, List<E> previousElements);
}