01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * 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:
19: /* $Id: BooleanVariable.java 473861 2006-11-12 03:51:14Z gregor $ */
20:
21: package org.apache.lenya.workflow;
22:
23: /**
24: * <p>Boolean state variable.</p>
25: * <p>
26: * A workflow schema can contain a set of state variables.
27: * For each instance, the state variables hold certain values.
28: * Values can be assigned during transitions, so a variable can
29: * change its value when a transition fires. Currently,
30: * the workflow supports only boolean state variables.
31: * </p>
32: */
33: public interface BooleanVariable {
34:
35: /**
36: * Returns the name of this variable.
37: * @return the name
38: */
39: String getName();
40:
41: /**
42: * Returns the initial value of this variable.
43: * @return A boolean value.
44: */
45: boolean getInitialValue();
46: }
|