1 package org.drools.jsr94.rules.admin;
2
3 /*
4 $Id: RuleExecutionSetRepository.java,v 1.4 2003/06/19 09:28:35 tdiesler Exp $
5
6 Copyright 2002 (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
10 that the following conditions are met:
11
12 1. Redistributions of source code must retain copyright
13 statements and notices. Redistributions must also contain a
14 copy of this document.
15
16 2. Redistributions in binary form must reproduce the
17 above copyright notice, this list of conditions and the
18 following disclaimer in the documentation and/or other
19 materials provided with the distribution.
20
21 3. The name "drools" must not be used to endorse or promote
22 products derived from this Software without prior written
23 permission of The Werken Company. For written permission,
24 please contact bob@werken.com.
25
26 4. Products derived from this Software may not be called "drools"
27 nor may "drools" appear in their names without prior written
28 permission of The Werken Company. "drools" is a registered
29 trademark of The Werken Company.
30
31 5. Due credit should be given to The Werken Company.
32 (http://drools.werken.com/).
33
34 THIS SOFTWARE IS PROVIDED BY THE WERKEN COMPANY AND CONTRIBUTORS
35 ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
36 NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
37 FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
38 THE WERKEN COMPANY OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
39 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
40 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
41 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
42 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
43 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
44 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
45 OF THE POSSIBILITY OF SUCH DAMAGE.
46
47 */
48
49 import javax.rules.admin.RuleExecutionSet;
50 import java.util.ArrayList;
51 import java.util.HashMap;
52 import java.util.List;
53 import java.util.Map;
54
55 /***
56 * Stores the registered <code>RuleExecutionSet</code> objects.
57 *
58 * @author <a href="mailto:thomas.diesler@softcon-itec.de">thomas diesler</a>
59 */
60 public class RuleExecutionSetRepository
61 {
62
63 // holds the registered <code>RuleExecutionSet</code> objects.
64 private Map map = new HashMap();
65
66 private static RuleExecutionSetRepository repository;
67
68 /*** Hide the constructor. */
69 private RuleExecutionSetRepository()
70 {
71 }
72
73 /*** Get the class instance of a <code>RuleExecutionSetRepository</code>. */
74 public static RuleExecutionSetRepository getInstance()
75 {
76 if ( repository != null ) return repository;
77 return repository = new RuleExecutionSetRepository();
78 }
79
80 /***
81 * Retrieves a List of the URIs that currently have <code>RuleExecutionSets</code>
82 * associated with them.
83 *
84 * An empty list is returned is there are no associations.
85 */
86 public List getRegistrations()
87 {
88 List list = new ArrayList();
89 list.addAll( map.keySet() );
90 return list;
91 }
92
93 /***
94 * Get the <code>RuleExecutionSet</code> bound to this URI, or return null.
95 */
96 public RuleExecutionSet getRuleExecutionSet( String bindUri )
97 {
98 return (RuleExecutionSet) map.get( bindUri );
99 }
100
101 /***
102 * Register a <code>RuleExecutionSet</code> under the given URI.
103 */
104 public void registerRuleExecutionSet( String bindUri, RuleExecutionSet ruleSet )
105 {
106 if ( bindUri == null ) throw new NullPointerException( "bindUri cannot be null" );
107 if ( ruleSet == null ) throw new NullPointerException( "ruleSet cannot be null" );
108 map.put( bindUri, ruleSet );
109 }
110
111 /***
112 * Unregister a <code>RuleExecutionSet</code> from the given URI.
113 */
114 public void unregisterRuleExecutionSet( String bindUri )
115 {
116 if ( bindUri == null ) throw new NullPointerException( "bindUri cannot be null" );
117 map.remove( bindUri );
118 }
119
120 }
This page was automatically generated by Maven