01: package org.drools.reteoo;
02:
03: /*
04: * Copyright 2005 JBoss Inc
05: *
06: * Licensed under the Apache License, Version 2.0 (the "License");
07: * you may not use this file except in compliance with the License.
08: * You may obtain a copy of the License at
09: *
10: * http://www.apache.org/licenses/LICENSE-2.0
11: *
12: * Unless required by applicable law or agreed to in writing, software
13: * distributed under the License is distributed on an "AS IS" BASIS,
14: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15: * See the License for the specific language governing permissions and
16: * limitations under the License.
17: */
18:
19: import java.io.Serializable;
20:
21: import org.drools.common.InternalWorkingMemory;
22: import org.drools.spi.PropagationContext;
23:
24: /**
25: * Receiver of propagated <code>ReteTuple</code>s from a
26: * <code>TupleSource</code>.
27: *
28: * @see TupleSource
29: *
30: * @author <a href="mailto:mark.proctor@jboss.com">Mark Proctor</a>
31: * @author <a href="mailto:bob@werken.com">Bob McWhirter</a>
32: */
33: public interface TupleSink extends Serializable, Sink {
34:
35: /**
36: * Assert a new <code>ReteTuple</code>.
37: *
38: * @param tuple
39: * The <code>ReteTuple</code> to propagate.
40: * @param context
41: * The <code>PropagationContext</code> of the <code>WorkingMemory<code> action
42: * @param workingMemory
43: * the <code>WorkingMemory</code> session.
44: */
45: void assertTuple(ReteTuple tuple, PropagationContext context,
46: InternalWorkingMemory workingMemory);
47:
48: void retractTuple(ReteTuple tuple, PropagationContext context,
49: InternalWorkingMemory workingMemory);
50: }
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