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-rw-r--r--projects/net.wotonomy.foundation/src/main/java/net/wotonomy/foundation/NSDate.java319
1 files changed, 149 insertions, 170 deletions
diff --git a/projects/net.wotonomy.foundation/src/main/java/net/wotonomy/foundation/NSDate.java b/projects/net.wotonomy.foundation/src/main/java/net/wotonomy/foundation/NSDate.java
index d5b6f61..a2121fd 100644
--- a/projects/net.wotonomy.foundation/src/main/java/net/wotonomy/foundation/NSDate.java
+++ b/projects/net.wotonomy.foundation/src/main/java/net/wotonomy/foundation/NSDate.java
@@ -23,17 +23,16 @@ import java.util.GregorianCalendar;
import java.util.TimeZone;
/**
-* A pure java implementation of NSDate that extends
-* java.util.Date for greater java compatibility.
-*
-* @author michael@mpowers.net
-* @author $Author: cgruber $
-* @version $Revision: 892 $
-*/
-public class NSDate extends Date
-{
+ * A pure java implementation of NSDate that extends java.util.Date for greater
+ * java compatibility.
+ *
+ * @author michael@mpowers.net
+ * @author $Author: cgruber $
+ * @version $Revision: 892 $
+ */
+public class NSDate extends Date {
// NSComparisonResult compatibility
-
+
public static final int NSOrderedAscending = -1;
public static final int NSOrderedSame = 0;
public static final int NSOrderedDescending = 1;
@@ -41,158 +40,142 @@ public class NSDate extends Date
// public static final double TimeIntervalSince1970;
// public static final NSDate DateFor1970;
- /**
- * Default constructor represents the current date.
- */
- public NSDate ()
- {
- super();
- }
-
- /**
- * Represents the specified number of seconds from the current date.
- */
- public NSDate (double seconds)
- {
- super( (long) new NSDate().getTime() +
- timeIntervalToMilliseconds(seconds) );
- }
-
- /**
- * Represents the specified number of seconds from the specified date.
- */
- public NSDate (double seconds, Date sinceDate)
- {
- super( (long) sinceDate.getTime() +
- timeIntervalToMilliseconds(seconds) );
- }
-
- /**
- * Returns the interval between this date and 1 January 2001 GMT.
- */
- public double timeIntervalSinceReferenceDate ()
- {
- GregorianCalendar referenceDate =
- new GregorianCalendar( TimeZone.getTimeZone( "GMT" ) );
- referenceDate.set( 2001, 0, 0, 0, 0, 0 );
- return timeIntervalSinceDate( referenceDate.getTime() );
- }
-
- /**
- * Returns the interval between this date and the specified date
- * in seconds.
- */
- public double timeIntervalSinceDate (Date aDate)
- {
- return millisecondsToTimeInterval(
- this.getTime() - aDate.getTime() );
- }
-
- /**
- * Returns the interval between this date and the current date
- * in seconds.
- */
- public double timeIntervalSinceNow ()
- {
- return timeIntervalSinceDate( new NSDate() );
- }
-
- /**
- * Compares this date to the specified date and returns the
- * earlier date. Unspecified which is returned if both are equal.
- */
- public NSDate earlierDate (NSDate aDate)
- {
- if ( aDate == null ) return this;
- if ( after( aDate ) ) return aDate;
- return this;
- }
-
- /**
- * Compares this date to the specified date and returns the
- * later date. Unspecified which is returned if both are equal.
- */
- public NSDate laterDate (NSDate aDate)
- {
- if ( aDate == null ) return this;
- if ( before( aDate ) ) return aDate;
- return this;
- }
-
- /**
- * Returns a negative value if the specified date is later than
- * this date, a positive value if the specified date is earlier
- * than this date, or zero if the dates are equal. The return
- * values are compatible with type NSComparisonResult.
- */
- public int compare (Date aDate)
- {
- if ( before( aDate ) ) return NSOrderedAscending;
- if ( after( aDate ) ) return NSOrderedDescending;
- return NSOrderedSame;
- }
-
- /**
- * Returns whether the this date is equal to the specified date,
- * per the result of equals().
- */
- public boolean isEqualToDate (Date aDate)
- {
- return equals( aDate );
- }
-
- /**
- * Returns a date that differs from this date by the specified
- * number of seconds.
- */
- public NSDate dateByAddingTimeInterval (double seconds)
- {
- return new NSDate( seconds, this );
- }
-
- /**
- * Returns the number of seconds between now and the reference date.
- */
- public static double currentTimeIntervalSinceReferenceDate ()
- {
- return new NSDate().timeIntervalSinceReferenceDate();
- }
-
- /**
- * Converts seconds to milliseconds. Included for compatibility.
- */
- public static long timeIntervalToMilliseconds (double seconds)
- {
- return (long) seconds*1000;
- }
-
- /**
- * Converts milliseconds to seconds. Included for compatibility.
- */
- public static double millisecondsToTimeInterval (long millis)
- {
- return millis/1000.0;
- }
-
- /**
- * Returns a date that is greater than all representable dates.
- */
- public static NSDate distantFuture ()
- {
- NSDate result = new NSDate();
- result.setTime( Long.MAX_VALUE );
- return result;
- }
-
- /**
- * Returns a date that is less than all representable dates.
- */
- public static NSDate distantPast ()
- {
- NSDate result = new NSDate();
- result.setTime( Long.MIN_VALUE );
- return result;
- }
+ /**
+ * Default constructor represents the current date.
+ */
+ public NSDate() {
+ super();
+ }
+
+ /**
+ * Represents the specified number of seconds from the current date.
+ */
+ public NSDate(double seconds) {
+ super((long) new NSDate().getTime() + timeIntervalToMilliseconds(seconds));
+ }
+
+ /**
+ * Represents the specified number of seconds from the specified date.
+ */
+ public NSDate(double seconds, Date sinceDate) {
+ super((long) sinceDate.getTime() + timeIntervalToMilliseconds(seconds));
+ }
+
+ /**
+ * Returns the interval between this date and 1 January 2001 GMT.
+ */
+ public double timeIntervalSinceReferenceDate() {
+ GregorianCalendar referenceDate = new GregorianCalendar(TimeZone.getTimeZone("GMT"));
+ referenceDate.set(2001, 0, 0, 0, 0, 0);
+ return timeIntervalSinceDate(referenceDate.getTime());
+ }
+
+ /**
+ * Returns the interval between this date and the specified date in seconds.
+ */
+ public double timeIntervalSinceDate(Date aDate) {
+ return millisecondsToTimeInterval(this.getTime() - aDate.getTime());
+ }
+
+ /**
+ * Returns the interval between this date and the current date in seconds.
+ */
+ public double timeIntervalSinceNow() {
+ return timeIntervalSinceDate(new NSDate());
+ }
+
+ /**
+ * Compares this date to the specified date and returns the earlier date.
+ * Unspecified which is returned if both are equal.
+ */
+ public NSDate earlierDate(NSDate aDate) {
+ if (aDate == null)
+ return this;
+ if (after(aDate))
+ return aDate;
+ return this;
+ }
+
+ /**
+ * Compares this date to the specified date and returns the later date.
+ * Unspecified which is returned if both are equal.
+ */
+ public NSDate laterDate(NSDate aDate) {
+ if (aDate == null)
+ return this;
+ if (before(aDate))
+ return aDate;
+ return this;
+ }
+
+ /**
+ * Returns a negative value if the specified date is later than this date, a
+ * positive value if the specified date is earlier than this date, or zero if
+ * the dates are equal. The return values are compatible with type
+ * NSComparisonResult.
+ */
+ public int compare(Date aDate) {
+ if (before(aDate))
+ return NSOrderedAscending;
+ if (after(aDate))
+ return NSOrderedDescending;
+ return NSOrderedSame;
+ }
+
+ /**
+ * Returns whether the this date is equal to the specified date, per the result
+ * of equals().
+ */
+ public boolean isEqualToDate(Date aDate) {
+ return equals(aDate);
+ }
+
+ /**
+ * Returns a date that differs from this date by the specified number of
+ * seconds.
+ */
+ public NSDate dateByAddingTimeInterval(double seconds) {
+ return new NSDate(seconds, this);
+ }
+
+ /**
+ * Returns the number of seconds between now and the reference date.
+ */
+ public static double currentTimeIntervalSinceReferenceDate() {
+ return new NSDate().timeIntervalSinceReferenceDate();
+ }
+
+ /**
+ * Converts seconds to milliseconds. Included for compatibility.
+ */
+ public static long timeIntervalToMilliseconds(double seconds) {
+ return (long) seconds * 1000;
+ }
+
+ /**
+ * Converts milliseconds to seconds. Included for compatibility.
+ */
+ public static double millisecondsToTimeInterval(long millis) {
+ return millis / 1000.0;
+ }
+
+ /**
+ * Returns a date that is greater than all representable dates.
+ */
+ public static NSDate distantFuture() {
+ NSDate result = new NSDate();
+ result.setTime(Long.MAX_VALUE);
+ return result;
+ }
+
+ /**
+ * Returns a date that is less than all representable dates.
+ */
+ public static NSDate distantPast() {
+ NSDate result = new NSDate();
+ result.setTime(Long.MIN_VALUE);
+ return result;
+ }
// inherited from java.util.Date
// public java.lang.String toString ();
@@ -202,16 +185,12 @@ public class NSDate extends Date
}
/*
- * $Log$
- * Revision 1.1 2006/02/16 12:47:16 cgruber
- * Check in all sources in eclipse-friendly maven-enabled packages.
+ * $Log$ Revision 1.1 2006/02/16 12:47:16 cgruber Check in all sources in
+ * eclipse-friendly maven-enabled packages.
*
- * Revision 1.1.1.1 2000/12/21 15:47:28 mpowers
- * Contributing wotonomy.
+ * Revision 1.1.1.1 2000/12/21 15:47:28 mpowers Contributing wotonomy.
*
- * Revision 1.3 2000/12/20 16:25:38 michael
- * Added log to all files.
+ * Revision 1.3 2000/12/20 16:25:38 michael Added log to all files.
*
*
*/
-
generated by cgit v1.2.3 (git 2.25.1) at 2026-05-10 02:37:38 +0000