| /** |
| * 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 |
| * |
| * 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 com.google.inject.grapher; |
| |
| import com.google.common.base.Objects; |
| |
| /** |
| * Edge that connects an interface to the type or instance that is bound to implement it. |
| * |
| * @author phopkins@gmail.com (Pete Hopkins) |
| */ |
| public class BindingEdge extends Edge { |
| /** |
| * Classification for what kind of binding this edge represents. |
| */ |
| public enum Type { |
| /** Binding is to an instance or class of the binding's same type. */ |
| NORMAL, |
| /** Binding is to an instance or class that provides the binding's type. */ |
| PROVIDER, |
| /** Binding is to the interface for a constant of a different type. */ |
| CONVERTED_CONSTANT |
| } |
| |
| private final Type type; |
| |
| public BindingEdge(NodeId fromId, NodeId toId, Type type) { |
| super(fromId, toId); |
| this.type = type; |
| } |
| |
| public Type getType() { |
| return type; |
| } |
| |
| @Override public boolean equals(Object obj) { |
| if (!(obj instanceof BindingEdge)) { |
| return false; |
| } |
| BindingEdge other = (BindingEdge) obj; |
| return super.equals(other) && Objects.equal(type, other.type); |
| } |
| |
| @Override public int hashCode() { |
| return 31 * super.hashCode() + Objects.hashCode(type); |
| } |
| |
| @Override public String toString() { |
| return "BindingEdge{fromId=" + getFromId() + " toId=" + getToId() + " type=" + type + "}"; |
| } |
| |
| @Override public Edge copy(NodeId fromId, NodeId toId) { |
| return new BindingEdge(fromId, toId, type); |
| } |
| } |