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: * Long Generator that maps products from a Double generator.<br/>
31: * <br/>
32: * Created: 13.11.2007 12:43:10
33: */
34: public class DoubleFromLongGenerator extends AbstractDoubleGenerator {
35:
36: private AbstractLongGenerator indexGenerator;
37:
38: public DoubleFromLongGenerator(AbstractLongGenerator longGenerator) {
39: this .indexGenerator = longGenerator;
40: }
41:
42: public void validate() {
43: if (dirty) {
44: super .validate();
45: indexGenerator.setMin(0L);
46: long maxIndex = (long) ((max - min) / precision);
47: indexGenerator.setMax(maxIndex);
48: indexGenerator.validate();
49: }
50: }
51:
52: public boolean available() {
53: return indexGenerator.available();
54: }
55:
56: public Double generate() {
57: if (dirty)
58: validate();
59: return min + indexGenerator.generate() * precision;
60: }
61:
62: public void reset() {
63: super .reset();
64: indexGenerator.reset();
65: }
66:
67: public void close() {
68: super.close();
69: indexGenerator.close();
70: }
71: }
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