Source Code Cross Referenced for TimeInterval.java in  » Search-Engine » semweb4j » org » ontoware » semversion » impl » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Search Engine » semweb4j » org.ontoware.semversion.impl 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Created on 12-Jul-05
003:         *
004:         * To change the template for this generated file go to
005:         * Window>Preferences>Java>Code Generation>Code and Comments
006:         */
007:        package org.ontoware.semversion.impl;
008:
009:        import java.util.Calendar;
010:        import java.util.Date;
011:
012:        /**
013:         * @author careng
014:         * 
015:         */
016:        public class TimeInterval {
017:
018:            protected Calendar start;
019:
020:            protected Calendar end;
021:
022:            public TimeInterval(Calendar start, Calendar end) {
023:                this .start = start;
024:                this .end = end;
025:            }
026:
027:            public Calendar getStart() {
028:                return start;
029:            }
030:
031:            public Calendar getEnd() {
032:                return end;
033:            }
034:
035:            public static Date getCurrentTimeStamp() {
036:                return new java.util.Date();
037:            }
038:
039:            /**
040:             * This interval should contain the other specified
041:             * @param other
042:             * @return true (this .... (other...) .... this)
043:             */
044:            public boolean contains(TimeInterval other) {
045:                return this .getStart().compareTo(other.getStart()) <= 0
046:                        && this .getEnd().compareTo(other.getEnd()) >= 0;
047:            }
048:
049:            public String toString() {
050:                return "[" + getStart() + " ... " + getEnd() + "]=["
051:                        + getStart().getTime() + " ... " + getEnd().getTime()
052:                        + "]";
053:            }
054:
055:            /**
056:             * This will subtract timeExpr to current timestamp
057:             * 
058:             * @param timeExpr
059:             *            is a date with only time
060:             * @return
061:             */
062:            public static Date subtract(Date timeExpr) {
063:                long dateMillis = new Date().getTime();
064:                long timeExprMillis = timeExpr.getTime();
065:
066:                return new Date(dateMillis - timeExprMillis);
067:            }
068:
069:            /**
070:             * 
071:             * @param date
072:             * @param timeExpr
073:             *            is a date with only time
074:             * @return
075:             */
076:            public static Date subtract(Date date, Date timeExpr) {
077:                long dateMillis = date.getTime();
078:                long timeExprMillis = timeExpr.getTime();
079:
080:                return new Date(dateMillis - timeExprMillis);
081:            }
082:
083:            /**
084:             * 
085:             * @param date
086:             * @param timeExpr
087:             *            is a date with only time
088:             * @return
089:             */
090:            public static Date add(Date date, Date timeExpr) {
091:                long dateMillis = date.getTime();
092:                long timeExprMillis = timeExpr.getTime();
093:
094:                return new Date(dateMillis + timeExprMillis);
095:            }
096:
097:            public boolean equals(Object o) {
098:                if (o instanceof  TimeInterval) {
099:                    TimeInterval ot = (TimeInterval) o;
100:                    return ot.getStart().equals(this .getStart())
101:                            && ot.getEnd().equals(this .getEnd());
102:                }
103:                return false;
104:            }
105:
106:        }
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