| /** |
| * 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.ambari.server.controller.spi; |
| |
| /** |
| * The predicate is used to filter the resources returned from the cluster |
| * controller. The predicate can examine a resource object and determine |
| * whether or not it should be included in the returned results. |
| */ |
| public interface Predicate { |
| /** |
| * Evaluate the predicate for the given resource. |
| * |
| * @param resource the resource to evaluate the predicate against |
| * @return the result of applying the predicate to the given resource |
| */ |
| public boolean evaluate(Resource resource); |
| } |
