1 /* 2 * ModeShape (http://www.modeshape.org) 3 * See the COPYRIGHT.txt file distributed with this work for information 4 * regarding copyright ownership. Some portions may be licensed 5 * to Red Hat, Inc. under one or more contributor license agreements. 6 * See the AUTHORS.txt file in the distribution for a full listing of 7 * individual contributors. 8 * 9 * ModeShape is free software. Unless otherwise indicated, all code in ModeShape 10 * is licensed to you under the terms of the GNU Lesser General Public License as 11 * published by the Free Software Foundation; either version 2.1 of 12 * the License, or (at your option) any later version. 13 * 14 * ModeShape is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 17 * Lesser General Public License for more details. 18 * 19 * You should have received a copy of the GNU Lesser General Public 20 * License along with this software; if not, write to the Free 21 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 22 * 02110-1301 USA, or see the FSF site: http://www.fsf.org. 23 */ 24 package org.modeshape.graph.query.process; 25 26 import java.util.Collections; 27 import java.util.Comparator; 28 import java.util.List; 29 30 /** 31 */ 32 public class SortLocationsComponent extends DelegatingComponent { 33 34 private Comparator<Object[]> sortingComparator; 35 36 public SortLocationsComponent( ProcessingComponent delegate ) { 37 super(delegate); 38 this.sortingComparator = createSortComparator(delegate.getContext(), delegate.getColumns()); 39 } 40 41 public SortLocationsComponent( ProcessingComponent delegate, 42 Comparator<Object[]> sortingComparator ) { 43 super(delegate); 44 this.sortingComparator = sortingComparator; 45 } 46 47 /** 48 * {@inheritDoc} 49 * 50 * @see org.modeshape.graph.query.process.ProcessingComponent#execute() 51 */ 52 @Override 53 public List<Object[]> execute() { 54 List<Object[]> tuples = delegate().execute(); 55 if (tuples.size() > 1) { 56 // Sort the tuples ... 57 Collections.sort(tuples, sortingComparator); 58 } 59 return tuples; 60 } 61 }