| /** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.openejb.jee; |
| |
| /** |
| * A keyable object can provide an immutable key for this object. |
| * <p/> |
| * It is important for the key to not be mutable and that the key value |
| * itself is not changed in the object. If this happens any AutoIndex, |
| * or Map using this key will break. |
| */ |
| public interface Keyable<K> { |
| /** |
| * Gets the immutable key for this object. |
| * |
| * @return gets the immutable key for this object |
| */ |
| K getKey(); |
| } |