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Java example source code file (

This example Java source code file ( is included in the "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

dependencyedge, injectionpoint, nodeid, override, string

The Java example source code

 * Copyright (C) 2008 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
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.



 * Edge from a class or {@link InjectionPoint} to the interface node that will satisfy the
 * dependency.
 * @author (Pete Hopkins)
 * @since 4.0 (since 2.0 as an interface)
public class DependencyEdge extends Edge {
   * Injection point to which this dependency belongs, or null if the dependency isn't attached to a
   * particular injection point.
  private final InjectionPoint injectionPoint;

  public DependencyEdge(NodeId fromId, NodeId toId, InjectionPoint injectionPoint) {
    super(fromId, toId);
    this.injectionPoint = injectionPoint;

  public InjectionPoint getInjectionPoint() {
    return injectionPoint;

  @Override public boolean equals(Object obj) {
    if (!(obj instanceof DependencyEdge)) {
      return false;
    DependencyEdge other = (DependencyEdge) obj;
    return super.equals(other) && Objects.equal(injectionPoint, other.injectionPoint);

  @Override public int hashCode() {
    return 31 * super.hashCode() + Objects.hashCode(injectionPoint);

  @Override public String toString() {
    return "DependencyEdge{fromId=" + getFromId() + " toId=" + getToId()
        + " injectionPoint=" + injectionPoint + "}";

  @Override public Edge copy(NodeId fromId, NodeId toId) {
    return new DependencyEdge(fromId, toId, injectionPoint);

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