1 /** 2 * Copyright (C) 2008 Google Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.inject.grapher; 18 19 import com.google.common.base.Objects; 20 import com.google.inject.spi.InjectionPoint; 21 22 /** 23 * Edge from a class or {@link InjectionPoint} to the interface node that will satisfy the 24 * dependency. 25 * 26 * @author phopkins@gmail.com (Pete Hopkins) 27 * @since 4.0 (since 2.0 as an interface) 28 */ 29 public class DependencyEdge extends Edge { 30 /** 31 * Injection point to which this dependency belongs, or null if the dependency isn't attached to a 32 * particular injection point. 33 */ 34 private final InjectionPoint injectionPoint; 35 DependencyEdge(NodeId fromId, NodeId toId, InjectionPoint injectionPoint)36 public DependencyEdge(NodeId fromId, NodeId toId, InjectionPoint injectionPoint) { 37 super(fromId, toId); 38 this.injectionPoint = injectionPoint; 39 } 40 getInjectionPoint()41 public InjectionPoint getInjectionPoint() { 42 return injectionPoint; 43 } 44 equals(Object obj)45 @Override public boolean equals(Object obj) { 46 if (!(obj instanceof DependencyEdge)) { 47 return false; 48 } 49 DependencyEdge other = (DependencyEdge) obj; 50 return super.equals(other) && Objects.equal(injectionPoint, other.injectionPoint); 51 } 52 hashCode()53 @Override public int hashCode() { 54 return 31 * super.hashCode() + Objects.hashCode(injectionPoint); 55 } 56 toString()57 @Override public String toString() { 58 return "DependencyEdge{fromId=" + getFromId() + " toId=" + getToId() 59 + " injectionPoint=" + injectionPoint + "}"; 60 } 61 copy(NodeId fromId, NodeId toId)62 @Override public Edge copy(NodeId fromId, NodeId toId) { 63 return new DependencyEdge(fromId, toId, injectionPoint); 64 } 65 } 66