1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package com.github.dexecutor.core.task;
19
20 /**
21 * A Task Provider provides Tasks to be executed, when it comes to execution
22 * @author Nadeem Mohammad
23 *
24 * @param <T> Type of Node/Task ID
25 * @param <R> Type of Node/Task result
26 */
27 public interface TaskProvider <T extends Comparable<T>, R> {
28 /**
29 * Given the node id, returns the task to be executed, while building graph only the node ids are required, when it comes to execution Task objects would be constructed
30 *
31 * @param id task id
32 * @return task the task which should be executed
33 */
34 public Task<T, R> provideTask(final T id);
35 }