01: package org.drools;
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: /**
20: * Persistent handle to an asserted fact.
21: *
22: * @see WorkingMemory#assertObject
23: *
24: * @author <a href="mailto:bob@werken.com">bob mcwhirter </a>
25: */
26:
27: import java.io.Serializable;
28:
29: public interface FactHandle extends Serializable {
30:
31: /**
32: * Convert this handle to an external representation.
33: *
34: * @return The external string form.
35: */
36: String toExternalForm();
37: }
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