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SchedulerService (Apache Hadoop HttpFS 0.23.1 API)
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org.apache.hadoop.lib.service.scheduler</FONT>
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Class SchedulerService</H2>
<PRE>
<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A>
  <IMG SRC="../../../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../../../org/apache/hadoop/lib/server/BaseService.html" title="class in org.apache.hadoop.lib.server">org.apache.hadoop.lib.server.BaseService</A>
      <IMG SRC="../../../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.hadoop.lib.service.scheduler.SchedulerService</B>
</PRE>
<DL>
<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../../../org/apache/hadoop/lib/server/Service.html" title="interface in org.apache.hadoop.lib.server">Service</A>, <A HREF="../../../../../../org/apache/hadoop/lib/service/Scheduler.html" title="interface in org.apache.hadoop.lib.service">Scheduler</A></DD>
</DL>
<HR>
<DL>
<DT><PRE>public class <A HREF="../../../../../../src-html/org/apache/hadoop/lib/service/scheduler/SchedulerService.html#line.37"><B>SchedulerService</B></A><DT>extends <A HREF="../../../../../../org/apache/hadoop/lib/server/BaseService.html" title="class in org.apache.hadoop.lib.server">BaseService</A><DT>implements <A HREF="../../../../../../org/apache/hadoop/lib/service/Scheduler.html" title="interface in org.apache.hadoop.lib.service">Scheduler</A></DL>
</PRE>

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<HR>

<P>
<!-- =========== FIELD SUMMARY =========== -->

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<B>Field Summary</B></FONT></TH>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/lib/service/scheduler/SchedulerService.html#CONF_THREADS">CONF_THREADS</A></B></CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/lib/service/scheduler/SchedulerService.html#PREFIX">PREFIX</A></B></CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->

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<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/lib/service/scheduler/SchedulerService.html#SchedulerService()">SchedulerService</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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<!-- ========== METHOD SUMMARY =========== -->

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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/lib/service/scheduler/SchedulerService.html#destroy()">destroy</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Destroy the services.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/lib/service/scheduler/SchedulerService.html#getInterface()">getInterface</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the interface implemented by this service.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A>[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/lib/service/scheduler/SchedulerService.html#getServiceDependencies()">getServiceDependencies</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the service dependencies of this service.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/lib/service/scheduler/SchedulerService.html#init()">init</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Initializes the server.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/lib/service/scheduler/SchedulerService.html#schedule(java.util.concurrent.Callable, long, long, java.util.concurrent.TimeUnit)">schedule</A></B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/util/concurrent/Callable.html?is-external=true" title="class or interface in java.util.concurrent">Callable</A>&lt;?&gt;&nbsp;callable,
                 long&nbsp;delay,
                 long&nbsp;interval,
                 <A HREF="http://download.oracle.com/javase/6/docs/api/java/util/concurrent/TimeUnit.html?is-external=true" title="class or interface in java.util.concurrent">TimeUnit</A>&nbsp;unit)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/lib/service/scheduler/SchedulerService.html#schedule(java.lang.Runnable, long, long, java.util.concurrent.TimeUnit)">schedule</A></B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Runnable.html?is-external=true" title="class or interface in java.lang">Runnable</A>&nbsp;runnable,
                 long&nbsp;delay,
                 long&nbsp;interval,
                 <A HREF="http://download.oracle.com/javase/6/docs/api/java/util/concurrent/TimeUnit.html?is-external=true" title="class or interface in java.util.concurrent">TimeUnit</A>&nbsp;unit)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
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&nbsp;<A NAME="methods_inherited_from_class_org.apache.hadoop.lib.server.BaseService"><!-- --></A>
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<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class org.apache.hadoop.lib.server.<A HREF="../../../../../../org/apache/hadoop/lib/server/BaseService.html" title="class in org.apache.hadoop.lib.server">BaseService</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../../../org/apache/hadoop/lib/server/BaseService.html#getPrefix()">getPrefix</A>, <A HREF="../../../../../../org/apache/hadoop/lib/server/BaseService.html#getPrefixedName(java.lang.String)">getPrefixedName</A>, <A HREF="../../../../../../org/apache/hadoop/lib/server/BaseService.html#getServer()">getServer</A>, <A HREF="../../../../../../org/apache/hadoop/lib/server/BaseService.html#getServiceConfig()">getServiceConfig</A>, <A HREF="../../../../../../org/apache/hadoop/lib/server/BaseService.html#init(org.apache.hadoop.lib.server.Server)">init</A>, <A HREF="../../../../../../org/apache/hadoop/lib/server/BaseService.html#postInit()">postInit</A>, <A HREF="../../../../../../org/apache/hadoop/lib/server/BaseService.html#serverStatusChange(org.apache.hadoop.lib.server.Server.Status, org.apache.hadoop.lib.server.Server.Status)">serverStatusChange</A></CODE></TD>
</TR>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD>
</TR>
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&nbsp;
<P>

<!-- ============ FIELD DETAIL =========== -->

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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Field Detail</B></FONT></TH>
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<A NAME="PREFIX"><!-- --></A><H3>
PREFIX</H3>
<PRE>
public static final <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <A HREF="../../../../../../src-html/org/apache/hadoop/lib/service/scheduler/SchedulerService.html#line.42"><B>PREFIX</B></A></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../../constant-values.html#org.apache.hadoop.lib.service.scheduler.SchedulerService.PREFIX">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="CONF_THREADS"><!-- --></A><H3>
CONF_THREADS</H3>
<PRE>
public static final <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <A HREF="../../../../../../src-html/org/apache/hadoop/lib/service/scheduler/SchedulerService.html#line.44"><B>CONF_THREADS</B></A></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../../constant-values.html#org.apache.hadoop.lib.service.scheduler.SchedulerService.CONF_THREADS">Constant Field Values</A></DL>
</DL>

<!-- ========= CONSTRUCTOR DETAIL ======== -->

<A NAME="constructor_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Constructor Detail</B></FONT></TH>
</TR>
</TABLE>

<A NAME="SchedulerService()"><!-- --></A><H3>
SchedulerService</H3>
<PRE>
public <A HREF="../../../../../../src-html/org/apache/hadoop/lib/service/scheduler/SchedulerService.html#line.48"><B>SchedulerService</B></A>()</PRE>
<DL>
</DL>

<!-- ============ METHOD DETAIL ========== -->

<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Method Detail</B></FONT></TH>
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</TABLE>

<A NAME="init()"><!-- --></A><H3>
init</H3>
<PRE>
public void <A HREF="../../../../../../src-html/org/apache/hadoop/lib/service/scheduler/SchedulerService.html#line.53"><B>init</B></A>()
          throws <A HREF="../../../../../../org/apache/hadoop/lib/server/ServiceException.html" title="class in org.apache.hadoop.lib.server">ServiceException</A></PRE>
<DL>
<DD><B>Description copied from class: <CODE><A HREF="../../../../../../org/apache/hadoop/lib/server/BaseService.html#init()">BaseService</A></CODE></B></DD>
<DD>Initializes the server.
 <p/>
 This method is called by <A HREF="../../../../../../org/apache/hadoop/lib/server/BaseService.html#init(org.apache.hadoop.lib.server.Server)"><CODE>BaseService.init(Server)</CODE></A> after all service properties
 (properties prefixed with
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../../org/apache/hadoop/lib/server/BaseService.html#init()">init</A></CODE> in class <CODE><A HREF="../../../../../../org/apache/hadoop/lib/server/BaseService.html" title="class in org.apache.hadoop.lib.server">BaseService</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../../../org/apache/hadoop/lib/server/ServiceException.html" title="class in org.apache.hadoop.lib.server">ServiceException</A></CODE> - thrown if the service could not be initialized.</DL>
</DD>
</DL>
<HR>

<A NAME="destroy()"><!-- --></A><H3>
destroy</H3>
<PRE>
public void <A HREF="../../../../../../src-html/org/apache/hadoop/lib/service/scheduler/SchedulerService.html#line.60"><B>destroy</B></A>()</PRE>
<DL>
<DD><B>Description copied from class: <CODE><A HREF="../../../../../../org/apache/hadoop/lib/server/BaseService.html#destroy()">BaseService</A></CODE></B></DD>
<DD>Destroy the services.  This method is called once, when the
 <A HREF="../../../../../../org/apache/hadoop/lib/server/Server.html" title="class in org.apache.hadoop.lib.server"><CODE>Server</CODE></A> owning the service is being destroyed.
 <p/>
 This method does a NOP.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../../org/apache/hadoop/lib/server/Service.html#destroy()">destroy</A></CODE> in interface <CODE><A HREF="../../../../../../org/apache/hadoop/lib/server/Service.html" title="interface in org.apache.hadoop.lib.server">Service</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../../../org/apache/hadoop/lib/server/BaseService.html#destroy()">destroy</A></CODE> in class <CODE><A HREF="../../../../../../org/apache/hadoop/lib/server/BaseService.html" title="class in org.apache.hadoop.lib.server">BaseService</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getServiceDependencies()"><!-- --></A><H3>
getServiceDependencies</H3>
<PRE>
public <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A>[] <A HREF="../../../../../../src-html/org/apache/hadoop/lib/service/scheduler/SchedulerService.html#line.80"><B>getServiceDependencies</B></A>()</PRE>
<DL>
<DD><B>Description copied from class: <CODE><A HREF="../../../../../../org/apache/hadoop/lib/server/BaseService.html#getServiceDependencies()">BaseService</A></CODE></B></DD>
<DD>Returns the service dependencies of this service. The service will be
 instantiated only if all the service dependencies are already initialized.
 <p/>
 This method returns an empty array (size 0)
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../../org/apache/hadoop/lib/server/Service.html#getServiceDependencies()">getServiceDependencies</A></CODE> in interface <CODE><A HREF="../../../../../../org/apache/hadoop/lib/server/Service.html" title="interface in org.apache.hadoop.lib.server">Service</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../../../org/apache/hadoop/lib/server/BaseService.html#getServiceDependencies()">getServiceDependencies</A></CODE> in class <CODE><A HREF="../../../../../../org/apache/hadoop/lib/server/BaseService.html" title="class in org.apache.hadoop.lib.server">BaseService</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>an empty array (size 0).</DL>
</DD>
</DL>
<HR>

<A NAME="getInterface()"><!-- --></A><H3>
getInterface</H3>
<PRE>
public <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A> <A HREF="../../../../../../src-html/org/apache/hadoop/lib/service/scheduler/SchedulerService.html#line.85"><B>getInterface</B></A>()</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../../../org/apache/hadoop/lib/server/Service.html#getInterface()">Service</A></CODE></B></DD>
<DD>Returns the interface implemented by this service. This interface is used
 the <A HREF="../../../../../../org/apache/hadoop/lib/server/Server.html" title="class in org.apache.hadoop.lib.server"><CODE>Server</CODE></A> when the <A HREF="../../../../../../org/apache/hadoop/lib/server/Server.html#get(java.lang.Class)"><CODE>Server.get(Class)</CODE></A> method is used to
 retrieve a service.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../../org/apache/hadoop/lib/server/Service.html#getInterface()">getInterface</A></CODE> in interface <CODE><A HREF="../../../../../../org/apache/hadoop/lib/server/Service.html" title="interface in org.apache.hadoop.lib.server">Service</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the interface that identifies the service.</DL>
</DD>
</DL>
<HR>

<A NAME="schedule(java.util.concurrent.Callable, long, long, java.util.concurrent.TimeUnit)"><!-- --></A><H3>
schedule</H3>
<PRE>
public void <A HREF="../../../../../../src-html/org/apache/hadoop/lib/service/scheduler/SchedulerService.html#line.90"><B>schedule</B></A>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/util/concurrent/Callable.html?is-external=true" title="class or interface in java.util.concurrent">Callable</A>&lt;?&gt;&nbsp;callable,
                     long&nbsp;delay,
                     long&nbsp;interval,
                     <A HREF="http://download.oracle.com/javase/6/docs/api/java/util/concurrent/TimeUnit.html?is-external=true" title="class or interface in java.util.concurrent">TimeUnit</A>&nbsp;unit)</PRE>
<DL>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../../org/apache/hadoop/lib/service/Scheduler.html#schedule(java.util.concurrent.Callable, long, long, java.util.concurrent.TimeUnit)">schedule</A></CODE> in interface <CODE><A HREF="../../../../../../org/apache/hadoop/lib/service/Scheduler.html" title="interface in org.apache.hadoop.lib.service">Scheduler</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="schedule(java.lang.Runnable, long, long, java.util.concurrent.TimeUnit)"><!-- --></A><H3>
schedule</H3>
<PRE>
public void <A HREF="../../../../../../src-html/org/apache/hadoop/lib/service/scheduler/SchedulerService.html#line.125"><B>schedule</B></A>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Runnable.html?is-external=true" title="class or interface in java.lang">Runnable</A>&nbsp;runnable,
                     long&nbsp;delay,
                     long&nbsp;interval,
                     <A HREF="http://download.oracle.com/javase/6/docs/api/java/util/concurrent/TimeUnit.html?is-external=true" title="class or interface in java.util.concurrent">TimeUnit</A>&nbsp;unit)</PRE>
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<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../../org/apache/hadoop/lib/service/Scheduler.html#schedule(java.lang.Runnable, long, long, java.util.concurrent.TimeUnit)">schedule</A></CODE> in interface <CODE><A HREF="../../../../../../org/apache/hadoop/lib/service/Scheduler.html" title="interface in org.apache.hadoop.lib.service">Scheduler</A></CODE></DL>
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