Source Code Cross Referenced for JavaDateFactory.java in  » Scripting » jython » com » ziclix » python » sql » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Scripting » jython » com.ziclix.python.sql 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Jython Database Specification API 2.0
003:         *
004:         * $Id: JavaDateFactory.java 2414 2005-02-23 04:26:23Z bzimmer $
005:         *
006:         * Copyright (c) 2003 brian zimmer <bzimmer@ziclix.com>
007:         *
008:         */
009:        package com.ziclix.python.sql;
010:
011:        import org.python.core.Py;
012:        import org.python.core.PyObject;
013:
014:        import java.sql.Time;
015:        import java.sql.Timestamp;
016:        import java.util.Calendar;
017:
018:        /**
019:         * Produce java.[util|sql] type dates.
020:         *
021:         * @author brian zimmer
022:         * @author last revised by $Author: bzimmer $
023:         * @version $Revision: 2414 $
024:         */
025:        public class JavaDateFactory implements  DateFactory {
026:
027:            /**
028:             * This function constructs an object holding a date value.
029:             *
030:             * @param year
031:             * @param month
032:             * @param day
033:             * @return PyObject
034:             */
035:            public PyObject Date(int year, int month, int day) {
036:
037:                Calendar c = Calendar.getInstance();
038:
039:                c.set(Calendar.YEAR, year);
040:                c.set(Calendar.MONTH, month - 1);
041:                c.set(Calendar.DATE, day);
042:
043:                return DateFromTicks(c.getTime().getTime() / 1000);
044:            }
045:
046:            /**
047:             * This function constructs an object holding a time value.
048:             *
049:             * @param hour
050:             * @param minute
051:             * @param second
052:             * @return PyObject
053:             */
054:            public PyObject Time(int hour, int minute, int second) {
055:
056:                Calendar c = Calendar.getInstance();
057:
058:                c.set(Calendar.HOUR, hour);
059:                c.set(Calendar.MINUTE, minute);
060:                c.set(Calendar.SECOND, second);
061:
062:                return TimeFromTicks(c.getTime().getTime() / 1000);
063:            }
064:
065:            /**
066:             * This function constructs an object holding a time stamp value.
067:             *
068:             * @param year
069:             * @param month
070:             * @param day
071:             * @param hour
072:             * @param minute
073:             * @param second
074:             * @return PyObject
075:             */
076:            public PyObject Timestamp(int year, int month, int day, int hour,
077:                    int minute, int second) {
078:
079:                Calendar c = Calendar.getInstance();
080:
081:                c.set(Calendar.YEAR, year);
082:                c.set(Calendar.MONTH, month - 1);
083:                c.set(Calendar.DATE, day);
084:                c.set(Calendar.HOUR, hour);
085:                c.set(Calendar.MINUTE, minute);
086:                c.set(Calendar.SECOND, second);
087:                c.set(Calendar.MILLISECOND, 0);
088:
089:                return TimestampFromTicks(c.getTime().getTime() / 1000);
090:            }
091:
092:            /**
093:             * This function constructs an object holding a date value from the
094:             * given ticks value (number of seconds since the epoch; see the
095:             * documentation of the standard Python <i>time</i> module for details).
096:             * <p/>
097:             * <i>Note:</i> The DB API 2.0 spec calls for time in seconds since the epoch
098:             * while the Java Date object returns time in milliseconds since the epoch.
099:             * This module adheres to the python API and will therefore use time in
100:             * seconds rather than milliseconds, so adjust any Java code accordingly.
101:             *
102:             * @param ticks number of seconds since the epoch
103:             * @return PyObject
104:             */
105:            public PyObject DateFromTicks(long ticks) {
106:
107:                Calendar c = Calendar.getInstance();
108:
109:                c.setTime(new java.util.Date(ticks * 1000));
110:                c.set(Calendar.HOUR, 0);
111:                c.set(Calendar.MINUTE, 0);
112:                c.set(Calendar.SECOND, 0);
113:                c.set(Calendar.MILLISECOND, 0);
114:
115:                return Py.java2py(new java.sql.Date(c.getTime().getTime()));
116:            }
117:
118:            /**
119:             * This function constructs an object holding a time value from the
120:             * given ticks value (number of seconds since the epoch; see the
121:             * documentation of the standard Python <i>time</i> module for details).
122:             * <p/>
123:             * <i>Note:</i> The DB API 2.0 spec calls for time in seconds since the epoch
124:             * while the Java Date object returns time in milliseconds since the epoch.
125:             * This module adheres to the python API and will therefore use time in
126:             * seconds rather than milliseconds, so adjust any Java code accordingly.
127:             *
128:             * @param ticks number of seconds since the epoch
129:             * @return PyObject
130:             */
131:            public PyObject TimeFromTicks(long ticks) {
132:                return Py.java2py(new Time(ticks * 1000));
133:            }
134:
135:            /**
136:             * This function constructs an object holding a time stamp value from
137:             * the given ticks value (number of seconds since the epoch; see the
138:             * documentation of the standard Python <i>time</i> module for details).
139:             * <p/>
140:             * <i>Note:</i> The DB API 2.0 spec calls for time in seconds since the epoch
141:             * while the Java Date object returns time in milliseconds since the epoch.
142:             * This module adheres to the python API and will therefore use time in
143:             * seconds rather than milliseconds, so adjust any Java code accordingly.
144:             *
145:             * @param ticks number of seconds since the epoch
146:             * @return PyObject
147:             */
148:            public PyObject TimestampFromTicks(long ticks) {
149:                return Py.java2py(new Timestamp(ticks * 1000));
150:            }
151:        }
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