1 /*
2 * Copyright (C) 2007-2012 Argeo GmbH
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package org.argeo.slc.execution;
17
18 import java.util.Iterator;
19
20 /** Abstraction of an execution that can be identified and configured. */
21 public interface ExecutionFlow extends Runnable {
22 /** Retrieve an immutable parameter */
23 public Object getParameter(String key);
24
25 /** Whether this immutable parameter is set */
26 public Boolean isSetAsParameter(String key);
27
28 /** The specifications of the execution flow. */
29 public ExecutionSpec getExecutionSpec();
30
31 /**
32 * List sub-runnables that would be executed if run() method would be
33 * called.
34 */
35 public Iterator<Runnable> runnables();
36
37 /**
38 * If there is one and only one runnable wrapped return it, throw an
39 * exception otherwise.
40 */
41 public Runnable getRunnable();
42
43 /**
44 * The name of this execution flow. Can contains '/' which will be
45 * interpreted by UIs as a hierarchy;
46 */
47 public String getName();
48 }