timeutils.html

jxta的api库

ANOCTOBER</H3>
<PRE>
public static final long <B>ANOCTOBER</B></PRE>
<DL>
<DD>The number of milliseconds in the month of October.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#net.jxta.impl.util.TimeUtils.ANOCTOBER">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="ANOVEMBER"><!-- --></A><H3>
ANOVEMBER</H3>
<PRE>
public static final long <B>ANOVEMBER</B></PRE>
<DL>
<DD>The number of milliseconds in the month of November.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#net.jxta.impl.util.TimeUtils.ANOVEMBER">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="ADECEMBER"><!-- --></A><H3>
ADECEMBER</H3>
<PRE>
public static final long <B>ADECEMBER</B></PRE>
<DL>
<DD>The number of milliseconds in the month of December.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#net.jxta.impl.util.TimeUtils.ADECEMBER">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="AYEAR"><!-- --></A><H3>
AYEAR</H3>
<PRE>
public static final long <B>AYEAR</B></PRE>
<DL>
<DD>The number of milliseconds in a non-leap year.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#net.jxta.impl.util.TimeUtils.AYEAR">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="ALEAPYEAR"><!-- --></A><H3>
ALEAPYEAR</H3>
<PRE>
public static final long <B>ALEAPYEAR</B></PRE>
<DL>
<DD>The number of milliseconds in a leap year.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#net.jxta.impl.util.TimeUtils.ALEAPYEAR">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="TIMEWARP"><!-- --></A><H3>
TIMEWARP</H3>
<PRE>
static volatile long <B>TIMEWARP</B></PRE>
<DL>
<DD>This odd little guy is for use in testing. it is applied anywhere the
  current time is used and allows modules which use timeutils to be tested
  through long (simulated) periods of time passing.
<P>
<DL>
</DL>
</DL>
<HR>

<A NAME="WARPBEGAN"><!-- --></A><H3>
WARPBEGAN</H3>
<PRE>
static long <B>WARPBEGAN</B></PRE>
<DL>
<DD>Absolute time in millis at which we began timewarping.
<P>
<DL>
</DL>
</DL>
<HR>

<A NAME="WARPFACTOR"><!-- --></A><H3>
WARPFACTOR</H3>
<PRE>
static double <B>WARPFACTOR</B></PRE>
<DL>
<DD>The rate at which time is warped using the auto-warper.
<P>
<DL>
</DL>
</DL>

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<A NAME="timeNow()"><!-- --></A><H3>
timeNow</H3>
<PRE>
public static final long <B>timeNow</B>()</PRE>
<DL>
<DD>Return the current time. This value may differ from the value returned
 by <CODE>System.currentTimeMillis()</CODE> if the <A HREF="../../../../net/jxta/impl/util/TimeUtils.html#timeWarp(long)"><CODE>timeWarp(long)</CODE></A> or
 <A HREF="../../../../net/jxta/impl/util/TimeUtils.html#autoWarp(double)"><CODE>autoWarp(double)</CODE></A> features are being used. Using
 <A HREF="../../../../net/jxta/impl/util/TimeUtils.html#timeNow()"><CODE>timeNow()</CODE></A> allows test harnesses to simulate long periods of
 time passing.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="toAbsoluteTimeMillis(long)"><!-- --></A><H3>
toAbsoluteTimeMillis</H3>
<PRE>
public static final long <B>toAbsoluteTimeMillis</B>(long&nbsp;duration)</PRE>
<DL>
<DD>Convert a duration into a duration expressed in milliseconds to absolute
  time realtive to the current real time. Special handling for the maximum
  and minimum durations converts them to the maximum and minimum absolute
  times.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>duration</CODE> - a time duration expressed in milliseconds.
<DT><B>Returns:</B><DD>an absolute time in milliseconds based on the duration's
  relation to the current real time.</DL>
</DD>
</DL>
<HR>

<A NAME="toAbsoluteTimeMillis(long, long)"><!-- --></A><H3>
toAbsoluteTimeMillis</H3>
<PRE>
public static final long <B>toAbsoluteTimeMillis</B>(long&nbsp;duration,
                                              long&nbsp;fromWhen)</PRE>
<DL>
<DD>Convert a duration into a duration expressed in milliseconds to absolute
  time realtive to the provided absolute time. Special handling for the
  maximum and minimum durations converts them to the maximum and minimum
  absolute times.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>duration</CODE> - a time duration expressed in milliseconds.<DD><CODE>fromWhen</CODE> - an absolute time expressed in milliseconds.
<DT><B>Returns:</B><DD>an absolute time in milliseconds based on the duration's
  relation to the provided absolute time.</DL>
</DD>
</DL>
<HR>

<A NAME="toRelativeTimeMillis(long)"><!-- --></A><H3>
toRelativeTimeMillis</H3>
<PRE>
public static final long <B>toRelativeTimeMillis</B>(long&nbsp;whence)</PRE>
<DL>
<DD>Convert an absolute real time in milliseconds to a duration relative
  to the current real time. Special handling for the maximum and minimum
  absolute times converts them to the maximum and minimum durations.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>whence</CODE> - an absolute real time expressed in milliseconds.
<DT><B>Returns:</B><DD>a duration expressed in milliseconds relative to the current
  real time.</DL>
</DD>
</DL>
<HR>

<A NAME="toRelativeTimeMillis(long, long)"><!-- --></A><H3>
toRelativeTimeMillis</H3>
<PRE>
public static final long <B>toRelativeTimeMillis</B>(long&nbsp;whence,
                                              long&nbsp;fromWhen)</PRE>
<DL>
<DD>Convert an absolute real time in milliseconds to a duration relative
  to the current real time. Special handling for the maximum and minimum
  absolute times converts them to the maximum and minimum durations.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>whence</CODE> - an absolute real time expressed in milliseconds.<DD><CODE>fromWhen</CODE> - the base time in absolute real time expressed in
 milliseconds from which the relative time will be calculated.
<DT><B>Returns:</B><DD>a duration expressed in milliseconds relative to the provided
  absolute time.</DL>
</DD>
</DL>
<HR>

<A NAME="timeWarp(long)"><!-- --></A><H3>
timeWarp</H3>
<PRE>
public static final void <B>timeWarp</B>(long&nbsp;advanceby)</PRE>
<DL>
<DD>VM Wide utility for advancing the timewarp by the number of milliseconds
 specified. May not be used if you are also using <A HREF="../../../../net/jxta/impl/util/TimeUtils.html#autoWarp(double)"><CODE>autoWarp(double)</CODE></A>.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>advanceby</CODE> - Advance the timewarp by the number of milliseconds
 specified.</DL>
</DD>
</DL>
<HR>

<A NAME="autoWarp(double)"><!-- --></A><H3>
autoWarp</H3>
<PRE>
public static final void <B>autoWarp</B>(double&nbsp;warpfactor)</PRE>
<DL>
<DD>VM Wide utility for automagically adjusting the time dialation of the
 time warp.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>warpfactor</CODE> - a decimal ratio at which artifical time will pass.

  <ul>
      <li>To have time pass at the rate of an hour every minute, initialize
      with: <tt>(double)(TimeUtils.ANHOUR / TimeUtils.AMINUTE)</tt>.</li>
      <li>To have time pass at five times normal rate, initialize
      with: <tt>5.0</tt>.</li>
      <li>etc.</li>
  </ul></DL>
</DD>
</DL>
<HR>

<A NAME="warpedRelativeTime(long)"><!-- --></A><H3>
warpedRelativeTime</H3>
<PRE>
public static final long <B>warpedRelativeTime</B>(long&nbsp;initial)</PRE>
<DL>
<DD>Return a time a relative time adjusted by the current warping factor.
  Needed for external methods which do not use <A HREF="../../../../net/jxta/impl/util/TimeUtils.html#timeNow()"><CODE>timeNow()</CODE></A> such
  as <CODE>Object.wait(long)</CODE> and
  <CODE>Socket.setSoTimeout(int)</CODE>.
<P>
<DD><DL>
</DL>
</DD>
</DL>
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