|
|||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
AgendaItem.java | - | 83.3% | 77.8% | 81% |
|
1 | package org.drools.reteoo; | |
2 | ||
3 | /* | |
4 | * $Id: AgendaItem.java,v 1.22 2005/02/04 02:13:36 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 java.io.Serializable; | |
44 | ||
45 | import org.drools.FactHandle; | |
46 | import org.drools.rule.Rule; | |
47 | import org.drools.spi.Activation; | |
48 | import org.drools.spi.ConsequenceException; | |
49 | import org.drools.spi.Tuple; | |
50 | ||
51 | /** | |
52 | * Item entry in the <code>Agenda</code>. | |
53 | * | |
54 | * @author <a href="mailto:bob@eng.werken.com">bob mcwhirter </a> | |
55 | */ | |
56 | class AgendaItem | |
57 | implements | |
58 | Activation, | |
59 | Serializable | |
60 | { | |
61 | // ------------------------------------------------------------ | |
62 | // Instance members | |
63 | // ------------------------------------------------------------ | |
64 | ||
65 | /** The tuple. */ | |
66 | private ReteTuple tuple; | |
67 | ||
68 | /** The rule. */ | |
69 | private Rule rule; | |
70 | ||
71 | // ** The Counter */ | |
72 | private static long counter; | |
73 | ||
74 | private long activationNumber; | |
75 | ||
76 | private boolean retract; | |
77 | ||
78 | // ------------------------------------------------------------ | |
79 | // Constructors | |
80 | // ------------------------------------------------------------ | |
81 | ||
82 | /** | |
83 | * Construct. | |
84 | * | |
85 | * @param tuple | |
86 | * The tuple. | |
87 | * @param rule | |
88 | * The rule. | |
89 | */ | |
90 | 6157 | AgendaItem(ReteTuple tuple, |
91 | Rule rule) | |
92 | { | |
93 | 6157 | this.tuple = tuple; |
94 | 6157 | this.rule = rule; |
95 | 6157 | this.activationNumber = counter++; |
96 | } | |
97 | ||
98 | // ------------------------------------------------------------ | |
99 | // Instance methods | |
100 | // ------------------------------------------------------------ | |
101 | ||
102 | /** | |
103 | * Retrieve the rule. | |
104 | * | |
105 | * @return The rule. | |
106 | */ | |
107 | 198681 | public Rule getRule() |
108 | { | |
109 | 198681 | return this.rule; |
110 | } | |
111 | ||
112 | /** | |
113 | * Determine if this tuple depends on the values derrived from a particular | |
114 | * root object. | |
115 | * | |
116 | * @param handle | |
117 | * The root object handle. | |
118 | * | |
119 | * @return <code>true<code> if this agenda item depends | |
120 | * upon the item, otherwise <code>false</code>. | |
121 | */ | |
122 | 6 | boolean dependsOn(FactHandle handle) |
123 | { | |
124 | 6 | return this.tuple.dependsOn( handle ); |
125 | } | |
126 | ||
127 | /** | |
128 | * Set the tuple. | |
129 | * | |
130 | * @param tuple | |
131 | * The tuple. | |
132 | */ | |
133 | 1 | void setTuple(ReteTuple tuple) |
134 | { | |
135 | 1 | this.tuple = tuple; |
136 | } | |
137 | ||
138 | /** | |
139 | * Retrieve the tuple. | |
140 | * | |
141 | * @return The tuple. | |
142 | */ | |
143 | 99384 | public Tuple getTuple() |
144 | { | |
145 | 99384 | return this.tuple; |
146 | } | |
147 | ||
148 | /** | |
149 | * Retrieve the <code>TupleKey</code>. | |
150 | * | |
151 | * @return The key to the tuple in this item. | |
152 | */ | |
153 | 11623 | TupleKey getKey() |
154 | { | |
155 | 11623 | return this.tuple.getKey( ); |
156 | } | |
157 | ||
158 | /** | |
159 | * Fire this item. | |
160 | * | |
161 | * @param workingMemory | |
162 | * The working memory context. | |
163 | * | |
164 | * @throws ConsequenceException | |
165 | * If an error occurs while attempting to fire the consequence. | |
166 | */ | |
167 | 386 | void fire(WorkingMemoryImpl workingMemory) throws ConsequenceException |
168 | { | |
169 | ||
170 | 386 | this.rule.getConsequence( ).invoke( this.tuple ); |
171 | ||
172 | 385 | workingMemory.getEventSupport( ).fireActivationFired( this.rule, |
173 | this.tuple ); | |
174 | } | |
175 | ||
176 | 0 | public long getActivationNumber() |
177 | { | |
178 | 0 | return this.activationNumber; |
179 | } | |
180 | ||
181 | 0 | public String toString() |
182 | { | |
183 | 0 | return "[" + this.rule.getName( ) + " " + this.tuple + "]"; |
184 | } | |
185 | ||
186 | } |
|