| /** |
| * 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.inject.Key; |
| |
| /** |
| * Factory for abstract identifiers for elements on the graph. Most graph nodes |
| * will correspond directly to {@link Key}s, but we do this for additional |
| * flexibility and because instances do not have separate {@link Key}s from the |
| * interfaces they are bound to. |
| * <p> |
| * Node IDs are treated as opaque values by {@link GraphingVisitor} and the |
| * other classes in this package. |
| * |
| * @author phopkins@gmail.com (Pete Hopkins) |
| * |
| * @param <K> The type for node IDs. |
| */ |
| public interface NodeIdFactory<K> { |
| K getClassNodeId(Key<?> key); |
| K getInstanceNodeId(Key<?> key); |
| } |