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 org.modeshape.graph.query.QueryResults.Columns;
27
28 /**
29 */
30 public abstract class DelegatingComponent extends ProcessingComponent {
31
32 private final ProcessingComponent delegate;
33
34 protected DelegatingComponent( ProcessingComponent delegate ) {
35 this(delegate, delegate.getColumns());
36 }
37
38 protected DelegatingComponent( ProcessingComponent delegate,
39 Columns overridingColumns ) {
40 super(delegate.getContext(), overridingColumns);
41 this.delegate = delegate;
42 }
43
44 /**
45 * Get the delegate processor.
46 *
47 * @return the delegate processor
48 */
49 protected final ProcessingComponent delegate() {
50 return delegate;
51 }
52
53 /**
54 * {@inheritDoc}
55 *
56 * @see org.modeshape.graph.query.process.ProcessingComponent#close()
57 */
58 @Override
59 public void close() {
60 super.close();
61 this.delegate.close();
62 }
63 }