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Java > Open Source Codes > org > openidex > search > CompoundSearchInfo


1 /*
2  * The contents of this file are subject to the terms of the Common Development
3  * and Distribution License (the License). You may not use this file except in
4  * compliance with the License.
5  *
6  * You can obtain a copy of the License at http://www.netbeans.org/cddl.html
7  * or http://www.netbeans.org/cddl.txt.
8  *
9  * When distributing Covered Code, include this CDDL Header Notice in each file
10  * and include the License file at http://www.netbeans.org/cddl.txt.
11  * If applicable, add the following below the CDDL Header, with the fields
12  * enclosed by brackets [] replaced by your own identifying information:
13  * "Portions Copyrighted [year] [name of copyright owner]"
14  *
15  * The Original Software is NetBeans. The Initial Developer of the Original
16  * Software is Sun Microsystems, Inc. Portions Copyright 2004 Sun
17  * Microsystems, Inc. All Rights Reserved.
18  */

19
20 package org.openidex.search;
21
22 import java.util.ArrayList JavaDoc;
23 import java.util.Iterator JavaDoc;
24 import java.util.List JavaDoc;
25
26 /**
27  *
28  * @author Marian Petras
29  */

30 class CompoundSearchInfo implements SearchInfo {
31
32     /** */
33     private final SearchInfo[] elements;
34
35     /**
36      * Creates a new instance of CompoundSearchInfo
37      *
38      * @param elements elements of this <code>SearchInfo</code>
39      * @exception java.lang.IllegalArgumentException
40      * if the argument was <code>null</code>
41      */

42     CompoundSearchInfo(SearchInfo[] elements) {
43         if (elements == null) {
44             throw new IllegalArgumentException JavaDoc();
45         }
46         
47         this.elements = elements.length != 0 ? elements
48                                              : null;
49     }
50
51     /**
52      */

53     public boolean canSearch() {
54         for (int i = 0; i < elements.length; i++) {
55             if (elements[i].canSearch()) {
56                 return true;
57             }
58         }
59         return false;
60     }
61
62     /**
63      */

64     public Iterator JavaDoc objectsToSearch() {
65         List JavaDoc searchableElements = new ArrayList JavaDoc(elements.length);
66         for (int i = 0; i < elements.length; i++) {
67             if (elements[i].canSearch()) {
68                 searchableElements.add(elements[i]);
69             }
70         }
71         return new CompoundSearchIterator(
72             (SearchInfo[])
73             searchableElements.toArray(
74                     new SearchInfo[searchableElements.size()]));
75     }
76     
77 }
78
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