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Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
TerminalNode.java | - | 66.7% | 60% | 63.6% |
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1 | package org.drools.reteoo; | |
2 | ||
3 | /* | |
4 | * $Id: TerminalNode.java,v 1.39 2005/02/02 00:23:22 mproctor Exp $ | |
5 | * | |
6 | * Copyright 2001-2003 (C) The Werken Company. All Rights Reserved. | |
7 | * | |
8 | * Redistribution and use of this software and associated documentation | |
9 | * ("Software"), with or without modification, are permitted provided that the | |
10 | * following conditions are met: | |
11 | * | |
12 | * 1. Redistributions of source code must retain copyright statements and | |
13 | * notices. Redistributions must also contain a copy of this document. | |
14 | * | |
15 | * 2. Redistributions in binary form must reproduce the above copyright notice, | |
16 | * this list of conditions and the following disclaimer in the documentation | |
17 | * and/or other materials provided with the distribution. | |
18 | * | |
19 | * 3. The name "drools" must not be used to endorse or promote products derived | |
20 | * from this Software without prior written permission of The Werken Company. | |
21 | * For written permission, please contact bob@werken.com. | |
22 | * | |
23 | * 4. Products derived from this Software may not be called "drools" nor may | |
24 | * "drools" appear in their names without prior written permission of The Werken | |
25 | * Company. "drools" is a trademark of The Werken Company. | |
26 | * | |
27 | * 5. Due credit should be given to The Werken Company. (http://werken.com/) | |
28 | * | |
29 | * THIS SOFTWARE IS PROVIDED BY THE WERKEN COMPANY AND CONTRIBUTORS ``AS IS'' | |
30 | * AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
31 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
32 | * ARE DISCLAIMED. IN NO EVENT SHALL THE WERKEN COMPANY OR ITS CONTRIBUTORS BE | |
33 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
34 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
35 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
36 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
37 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
38 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
39 | * POSSIBILITY OF SUCH DAMAGE. | |
40 | * | |
41 | */ | |
42 | ||
43 | import org.drools.AssertionException; | |
44 | import org.drools.rule.Rule; | |
45 | ||
46 | /** | |
47 | * Leaf Rete-OO node responsible for enacting <code>Action</code> s on a | |
48 | * matched <code>Rule</code>. | |
49 | * | |
50 | * @see org.drools.rule.Rule | |
51 | * | |
52 | * @author <a href="mailto:bob@eng.werken.com">bob mcwhirter </a> | |
53 | */ | |
54 | final class TerminalNode | |
55 | implements | |
56 | TupleSink | |
57 | { | |
58 | // ------------------------------------------------------------ | |
59 | // Instance members | |
60 | // ------------------------------------------------------------ | |
61 | ||
62 | /** The rule to invoke upon match. */ | |
63 | private final Rule rule; | |
64 | ||
65 | // ------------------------------------------------------------ | |
66 | // Constructors | |
67 | // ------------------------------------------------------------ | |
68 | ||
69 | /** | |
70 | * Construct. | |
71 | * | |
72 | * @param inputSource | |
73 | * The parent tuple source. | |
74 | * @param rule | |
75 | * The rule. | |
76 | */ | |
77 | 90 | TerminalNode(TupleSource inputSource, |
78 | Rule rule) | |
79 | { | |
80 | 90 | this.rule = rule; |
81 | ||
82 | 90 | inputSource.addTupleSink( this ); |
83 | } | |
84 | ||
85 | // ------------------------------------------------------------ | |
86 | // Instance methods | |
87 | // ------------------------------------------------------------ | |
88 | ||
89 | /** | |
90 | * Retrieve the <code>Action</code> associated with this node. | |
91 | * | |
92 | * @return The <code>Action</code> associated with this node. | |
93 | */ | |
94 | 0 | public Rule getRule() |
95 | { | |
96 | 0 | return this.rule; |
97 | } | |
98 | ||
99 | // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | |
100 | // org.drools.impl.TupleSink | |
101 | // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | |
102 | ||
103 | /** | |
104 | * Assert a new <code>Tuple</code>. | |
105 | * | |
106 | * @param tuple | |
107 | * The <code>Tuple</code> being asserted. | |
108 | * @param workingMemory | |
109 | * The working memory seesion. | |
110 | * | |
111 | * @throws AssertionException | |
112 | * If an error occurs while asserting. | |
113 | */ | |
114 | 6145 | public void assertTuple(ReteTuple tuple, |
115 | WorkingMemoryImpl workingMemory) throws AssertionException | |
116 | { | |
117 | 6145 | workingMemory.getAgenda( ).addToAgenda( tuple, |
118 | this.rule ); | |
119 | } | |
120 | ||
121 | /** | |
122 | * Retract tuples. | |
123 | * | |
124 | * @param key | |
125 | * The tuple key. | |
126 | * @param workingMemory | |
127 | * The working memory seesion. | |
128 | */ | |
129 | 931 | public void retractTuples(TupleKey key, |
130 | WorkingMemoryImpl workingMemory) | |
131 | { | |
132 | 931 | workingMemory.getAgenda( ).removeFromAgenda( key, |
133 | this.rule ); | |
134 | } | |
135 | ||
136 | ||
137 | 0 | public String toString() |
138 | { | |
139 | 0 | return "[TerminalNode: rule=" + rule.getName( ) + "]"; |
140 | } | |
141 | } |
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