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1 package org.drools.rule; 2 3 /* 4 $Id: FixedDuration.java,v 1.1 2002/08/22 07:42:39 bob Exp $ 5 6 Copyright 2002 (C) The Werken Company. All Rights Reserved. 7 8 Redistribution and use of this software and associated documentation 9 ("Software"), with or without modification, are permitted provided 10 that the following conditions are met: 11 12 1. Redistributions of source code must retain copyright 13 statements and notices. Redistributions must also contain a 14 copy of this document. 15 16 2. Redistributions in binary form must reproduce the 17 above copyright notice, this list of conditions and the 18 following disclaimer in the documentation and/or other 19 materials provided with the distribution. 20 21 3. The name "drools" must not be used to endorse or promote 22 products derived from this Software without prior written 23 permission of The Werken Company. For written permission, 24 please contact bob@werken.com. 25 26 4. Products derived from this Software may not be called "drools" 27 nor may "drools" appear in their names without prior written 28 permission of The Werken Company. "drools" is a registered 29 trademark of The Werken Company. 30 31 5. Due credit should be given to The Werken Company. 32 (http://drools.werken.com/). 33 34 THIS SOFTWARE IS PROVIDED BY THE WERKEN COMPANY AND CONTRIBUTORS 35 ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT 36 NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 37 FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 38 THE WERKEN COMPANY OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 39 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 40 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 41 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 42 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 43 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 44 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 45 OF THE POSSIBILITY OF SUCH DAMAGE. 46 47 */ 48 49 import org.drools.spi.Duration; 50 import org.drools.spi.Tuple; 51 52 /*** A fixed truthness duration. 53 * 54 * @see Rule#setDuration 55 * @see Rule#getDuration 56 * 57 * @author <a href="mailto:bob@eng.werken.com">bob mcwhirter</a> 58 * 59 * @version $Id: FixedDuration.java,v 1.1 2002/08/22 07:42:39 bob Exp $ 60 */ 61 public class FixedDuration implements Duration 62 { 63 // ------------------------------------------------------------ 64 // Instance members 65 // ------------------------------------------------------------ 66 67 /*** Duration, in seconds. */ 68 private long duration; 69 70 // ------------------------------------------------------------ 71 // Constructors 72 // ------------------------------------------------------------ 73 74 /*** Construct. 75 */ 76 public FixedDuration() 77 { 78 this.duration = 0; 79 } 80 81 /*** Construct. 82 * 83 * @param seconds Number of seconds. 84 */ 85 public FixedDuration(long seconds) 86 { 87 this.duration = seconds; 88 } 89 90 // ------------------------------------------------------------ 91 // Instance methods 92 // ------------------------------------------------------------ 93 94 /*** Add seconds. 95 * 96 * @param seconds Number of seconds. 97 */ 98 public void addSeconds(long seconds) 99 { 100 this.duration += seconds; 101 } 102 103 /*** Add minutes. 104 * 105 * @param minutes Number of minutes. 106 */ 107 public void addMinutes(long minutes) 108 { 109 this.duration += (minutes * 60); 110 } 111 112 /*** Add hours. 113 * 114 * @param hours Number of hours. 115 */ 116 public void addHours(long hours) 117 { 118 this.duration += (hours * 60 * 60); 119 } 120 121 /*** Add days. 122 * 123 * @param days Number of days. 124 */ 125 public void addDays(long days) 126 { 127 this.duration += (days * 60 * 60 * 24); 128 } 129 130 /*** Add weeks. 131 * 132 * @param weeks Number of weeks. 133 */ 134 public void addWeeks(long weeks) 135 { 136 this.duration += (weeks * 60 * 60 * 24 * 7); 137 } 138 139 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 140 // org.drools.spi.Duration 141 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 142 143 /*** Retrieve the truthness duration. 144 * 145 * @param tuple The tuple. 146 * 147 * @return The number of seconds the rule must 148 * hold true in order to fire. 149 */ 150 public long getDuration(Tuple tuple) 151 { 152 return this.duration; 153 } 154 }

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