01: /*
02: * (c) Copyright 2006 by Volker Bergmann. All rights reserved.
03: *
04: * Redistribution and use in source and binary forms, with or without
05: * modification, is permitted under the terms of the
06: * GNU General Public License.
07: *
08: * For redistributing this software or a derivative work under a license other
09: * than the GPL-compatible Free Software License as defined by the Free
10: * Software Foundation or approved by OSI, you must first obtain a commercial
11: * license to this software product from Volker Bergmann.
12: *
13: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
14: * WITHOUT A WARRANTY OF ANY KIND. ALL EXPRESS OR IMPLIED CONDITIONS,
15: * REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF
16: * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE
17: * HEREBY EXCLUDED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
18: * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
19: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
20: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
22: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
23: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
24: * POSSIBILITY OF SUCH DAMAGE.
25: */
26:
27: package org.databene.benerator;
28:
29: /**
30: * Helper for lightweight generators that do not have a life cycle.
31: * For these, the close() and reset() methods are implemented with
32: * an empty body.<br/>
33: * <br/>
34: * Created: 15.08.2006 09:12:55
35: */
36: public abstract class LightweightGenerator<E> implements Generator<E> {
37:
38: private Class<E> generatedType;
39:
40: protected LightweightGenerator() {
41: this ((Class<E>) Object.class);
42: }
43:
44: protected LightweightGenerator(Class<E> generatedType) {
45: this .generatedType = generatedType;
46: }
47:
48: public Class<E> getGeneratedType() {
49: return generatedType;
50: }
51:
52: public void validate() {
53: }
54:
55: /** Empty implementation */
56: public void reset() {
57: }
58:
59: /** Empty implementation */
60: public void close() {
61: }
62:
63: public boolean available() {
64: return true;
65: }
66:
67: // protected helpers for child classes -----------------------------------------------------------------------------
68:
69: protected static IllegalGeneratorStateException stateException(
70: Generator generator) {
71: return GeneratorUtil.stateException(generator);
72: }
73:
74: }
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