01: /*--
02:
03: Copyright (C) 2002-2005 Adrian Price.
04: All rights reserved.
05:
06: Redistribution and use in source and binary forms, with or without
07: modification, are permitted provided that the following conditions
08: are met:
09:
10: 1. Redistributions of source code must retain the above copyright
11: notice, this list of conditions, and the following disclaimer.
12:
13: 2. Redistributions in binary form must reproduce the above copyright
14: notice, this list of conditions, and the disclaimer that follows
15: these conditions in the documentation and/or other materials
16: provided with the distribution.
17:
18: 3. The names "OBE" and "Open Business Engine" must not be used to
19: endorse or promote products derived from this software without prior
20: written permission. For written permission, please contact
21: adrianprice@sourceforge.net.
22:
23: 4. Products derived from this software may not be called "OBE" or
24: "Open Business Engine", nor may "OBE" or "Open Business Engine"
25: appear in their name, without prior written permission from
26: Adrian Price (adrianprice@users.sourceforge.net).
27:
28: THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
29: WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
30: OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
31: DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT,
32: INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
33: (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
34: SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
36: STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
37: IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
38: POSSIBILITY OF SUCH DAMAGE.
39:
40: For more information on OBE, please see
41: <http://obe.sourceforge.net/>.
42:
43: */
44:
45: package org.obe.spi.service;
46:
47: import org.obe.spi.WorkflowService;
48:
49: import java.io.Serializable;
50:
51: /**
52: * Provides an asynchronous internal execution service. The workflow engine
53: * uses this interface when it needs to execute part of the workflow
54: * asynchronously (for example, to run a sub-workflow or tool).
55: *
56: * @author Adrian Price
57: */
58: public interface AsyncManager extends WorkflowService {
59: String SERVICE_NAME = "AsyncManager";
60:
61: /**
62: * Interface that must be implemented by requests submitted to this service.
63: */
64: interface AsyncRequest extends Runnable, Serializable {
65: }
66:
67: /**
68: * Posts a request for asynchronous execution.
69: *
70: * @param request The object to run asynchronously.
71: */
72: void asyncRequest(AsyncRequest request);
73:
74: /**
75: * Posts an activity for asynchronous execution.
76: *
77: * @param processInstanceId
78: * @param activityInstanceId
79: */
80: void asyncStartActivity(String processInstanceId,
81: String activityInstanceId);
82:
83: /**
84: * Posts a process instance for asynchronous execution.
85: *
86: * @param processInstanceId
87: */
88: void asyncStartProcess(String processInstanceId);
89: }
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