java-design-patterns/composite-entity/src/main/java/com/iluwatar/compositeentity/CoarseGrainedObject.java

/*
 * The MIT License
 * Copyright © 2014-2021 Ilkka Seppälä
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package com.iluwatar.compositeentity;

import java.util.Arrays;
import java.util.stream.IntStream;

/**
 * A coarse-grained object is an object with its own life cycle manages its own relationships to
 * other objects. It can be an object contained in the composite entity, or, composite entity itself
 * can be the coarse-grained object which holds dependent objects.
 */

public abstract class CoarseGrainedObject<T> {

  DependentObject<T>[] dependentObjects;

  public void setData(T... data) {
    IntStream.range(0, data.length).forEach(i -> dependentObjects[i].setData(data[i]));
  }

  public T[] getData() {
    return (T[]) Arrays.stream(dependentObjects).map(DependentObject::getData).toArray();
  }
}