01: /*
02: *
03: * Copyright (c) 2002 Adrian Price. All rights reserved.
04: */
05:
06: package org.wfmc.wapi;
07:
08: /**
09: * Iterator for retrieving activity instance states.
10: *
11: * @author Adrian Price
12: */
13: public interface WMActivityInstanceStateIterator extends WMIterator {
14: /**
15: * Retrieves the next activity instance state.
16: *
17: * @return The activity instance state.
18: * @throws WMNoMoreDataException if no more data are available.
19: */
20: WMActivityInstanceState tsNext() throws WMNoMoreDataException;
21: }
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