001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 2004-2007 Sun
028: * Microsystems, Inc. All Rights Reserved.
029: *
030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
034: * single choice of license, a recipient has the option to distribute
035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041:
042: package org.openidex.search;
043:
044: import java.util.ArrayList;
045: import java.util.Collections;
046: import java.util.Iterator;
047: import java.util.List;
048: import org.openide.loaders.DataObject;
049:
050: /**
051: *
052: * @author Marian Petras
053: */
054: class CompoundSearchInfo implements SearchInfo {
055:
056: /** */
057: private final SearchInfo[] elements;
058:
059: /**
060: * Creates a new instance of CompoundSearchInfo
061: *
062: * @param elements elements of this <code>SearchInfo</code>
063: * @exception java.lang.IllegalArgumentException
064: * if the argument was <code>null</code>
065: */
066: CompoundSearchInfo(SearchInfo... elements) {
067: if (elements == null) {
068: throw new IllegalArgumentException();
069: }
070:
071: this .elements = elements.length != 0 ? elements : null;
072: }
073:
074: /**
075: */
076: public boolean canSearch() {
077: if (elements != null) {
078: for (SearchInfo element : elements) {
079: if (element.canSearch()) {
080: return true;
081: }
082: }
083: }
084: return false;
085: }
086:
087: /**
088: */
089: public Iterator<DataObject> objectsToSearch() {
090: if (elements == null) {
091: return Collections.<DataObject> emptyList().iterator();
092: }
093:
094: List<SearchInfo> searchableElements = new ArrayList<SearchInfo>(
095: elements.length);
096: for (SearchInfo element : elements) {
097: if (element.canSearch()) {
098: searchableElements.add(element);
099: }
100: }
101: return new CompoundSearchIterator(searchableElements
102: .toArray(new SearchInfo[searchableElements.size()]));
103: }
104:
105: }
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