01: /*
02: * (c) Copyright 2007 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.sample;
28:
29: import org.databene.benerator.Generator;
30: import static org.databene.benerator.GeneratorUtil.*;
31:
32: /**
33: * Creates a predefined sequence of objects.<br/>
34: * <br/>
35: * Created: 19.11.2007 15:21:24
36: */
37: public class SequenceGenerator<E> implements Generator<E> {
38:
39: private Class<E> productType;
40: private E[] values;
41: private int cursor = 0;
42:
43: public SequenceGenerator(Class<E> productType, E... values) {
44: this .productType = productType;
45: this .values = values;
46: }
47:
48: // Generator interface ---------------------------------------------------------------------------------------------
49:
50: public Class<E> getGeneratedType() {
51: return productType;
52: }
53:
54: public void validate() {
55: }
56:
57: public boolean available() {
58: return cursor >= 0;
59: }
60:
61: public E generate() {
62: if (cursor < 0)
63: throw stateException(this );
64: E result = values[cursor];
65: if (cursor < values.length - 1)
66: cursor++;
67: else
68: cursor = -1;
69: return result;
70: }
71:
72: public void reset() {
73: cursor = 0;
74: }
75:
76: public void close() {
77: values = null;
78: cursor = -1;
79: }
80: }
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