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.primitive;
28:
29: import org.databene.benerator.LightweightGenerator;
30:
31: /**
32: * Generates boolean values with a configurable quota of true values.<br/>
33: * <br/>
34: * Created: 09.06.2006 20:03:18
35: */
36: public class BooleanGenerator extends LightweightGenerator<Boolean> {
37:
38: /** The quota of true values to create */
39: private double trueQuota;
40:
41: // constructors ----------------------------------------------------------------------------------------------------
42:
43: /** Initializes the generator to a trueQuota of 50% */
44: public BooleanGenerator() {
45: this (0.5f);
46: }
47:
48: /** Initializes the generator to a trueQuota */
49: public BooleanGenerator(double trueQuota) {
50: this .trueQuota = trueQuota;
51: }
52:
53: // config properties -----------------------------------------------------------------------------------------------
54:
55: /** Sets the quota of true values to create */
56: public double getTrueQuota() {
57: return trueQuota;
58: }
59:
60: /** Returns the quota of true values to create */
61: public void setTrueQuota(double trueQuota) {
62: this .trueQuota = trueQuota;
63: }
64:
65: // Generator interface ---------------------------------------------------------------------------------------------
66:
67: public Class<Boolean> getGeneratedType() {
68: return Boolean.class;
69: }
70:
71: /** generates boolean values with a quota of true values according to the trueQuota property */
72: public Boolean generate() {
73: return Math.random() <= trueQuota;
74: }
75:
76: // java.lang.Object overrides --------------------------------------------------------------------------------------
77:
78: public String toString() {
79: return getClass().getSimpleName() + "[trueQuota=" + trueQuota
80: + ']';
81: }
82: }
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