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| com.cloudera.crunch</FONT> |
| <BR> |
| Class FilterFn<T></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="../../../com/cloudera/crunch/DoFn.html" title="class in com.cloudera.crunch">com.cloudera.crunch.DoFn</A><T,T> |
| <IMG SRC="../../../resources/inherit.gif" ALT="extended by "><B>com.cloudera.crunch.FilterFn<T></B> |
| </PRE> |
| <DL> |
| <DT><B>All Implemented Interfaces:</B> <DD><A HREF="http://download.oracle.com/javase/6/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</A></DD> |
| </DL> |
| <DL> |
| <DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../com/cloudera/crunch/FilterFn.AndFn.html" title="class in com.cloudera.crunch">FilterFn.AndFn</A>, <A HREF="../../../com/cloudera/crunch/FilterFn.NotFn.html" title="class in com.cloudera.crunch">FilterFn.NotFn</A>, <A HREF="../../../com/cloudera/crunch/FilterFn.OrFn.html" title="class in com.cloudera.crunch">FilterFn.OrFn</A></DD> |
| </DL> |
| <HR> |
| <DL> |
| <DT><PRE>public abstract class <B>FilterFn<T></B><DT>extends <A HREF="../../../com/cloudera/crunch/DoFn.html" title="class in com.cloudera.crunch">DoFn</A><T,T></DL> |
| </PRE> |
| |
| <P> |
| A <A HREF="../../../com/cloudera/crunch/DoFn.html" title="class in com.cloudera.crunch"><CODE>DoFn</CODE></A> for the common case of filtering the members of |
| a <A HREF="../../../com/cloudera/crunch/PCollection.html" title="interface in com.cloudera.crunch"><CODE>PCollection</CODE></A> based on a boolean condition. |
| <P> |
| |
| <P> |
| <DL> |
| <DT><B>See Also:</B><DD><A HREF="../../../serialized-form.html#com.cloudera.crunch.FilterFn">Serialized Form</A></DL> |
| <HR> |
| |
| <P> |
| <!-- ======== NESTED CLASS SUMMARY ======== --> |
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| <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
| <B>Nested Class Summary</B></FONT></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>static class</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../com/cloudera/crunch/FilterFn.AndFn.html" title="class in com.cloudera.crunch">FilterFn.AndFn</A><<A HREF="../../../com/cloudera/crunch/FilterFn.AndFn.html" title="type parameter in FilterFn.AndFn">S</A>></B></CODE> |
| |
| <BR> |
| </TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>static class</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../com/cloudera/crunch/FilterFn.NotFn.html" title="class in com.cloudera.crunch">FilterFn.NotFn</A><<A HREF="../../../com/cloudera/crunch/FilterFn.NotFn.html" title="type parameter in FilterFn.NotFn">S</A>></B></CODE> |
| |
| <BR> |
| </TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>static class</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../com/cloudera/crunch/FilterFn.OrFn.html" title="class in com.cloudera.crunch">FilterFn.OrFn</A><<A HREF="../../../com/cloudera/crunch/FilterFn.OrFn.html" title="type parameter in FilterFn.OrFn">S</A>></B></CODE> |
| |
| <BR> |
| </TD> |
| </TR> |
| </TABLE> |
| |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| |
| <A NAME="constructor_summary"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
| <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
| <B>Constructor Summary</B></FONT></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD><CODE><B><A HREF="../../../com/cloudera/crunch/FilterFn.html#FilterFn()">FilterFn</A></B>()</CODE> |
| |
| <BR> |
| </TD> |
| </TR> |
| </TABLE> |
| |
| <!-- ========== METHOD SUMMARY =========== --> |
| |
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| <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
| <B>Method Summary</B></FONT></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>abstract boolean</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../com/cloudera/crunch/FilterFn.html#accept(T)">accept</A></B>(<A HREF="../../../com/cloudera/crunch/FilterFn.html" title="type parameter in FilterFn">T</A> input)</CODE> |
| |
| <BR> |
| If true, emit the given record.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>static |
| <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="0" SUMMARY=""> |
| <TR ALIGN="right" VALIGN=""> |
| <TD NOWRAP><FONT SIZE="-1"> |
| <CODE><S> <A HREF="../../../com/cloudera/crunch/FilterFn.html" title="class in com.cloudera.crunch">FilterFn</A><S></CODE></FONT></TD> |
| </TR> |
| </TABLE> |
| </CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../com/cloudera/crunch/FilterFn.html#and(com.cloudera.crunch.FilterFn...)">and</A></B>(<A HREF="../../../com/cloudera/crunch/FilterFn.html" title="class in com.cloudera.crunch">FilterFn</A><S>... fns)</CODE> |
| |
| <BR> |
| </TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>static |
| <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="0" SUMMARY=""> |
| <TR ALIGN="right" VALIGN=""> |
| <TD NOWRAP><FONT SIZE="-1"> |
| <CODE><S> <A HREF="../../../com/cloudera/crunch/FilterFn.html" title="class in com.cloudera.crunch">FilterFn</A><S></CODE></FONT></TD> |
| </TR> |
| </TABLE> |
| </CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../com/cloudera/crunch/FilterFn.html#not(com.cloudera.crunch.FilterFn)">not</A></B>(<A HREF="../../../com/cloudera/crunch/FilterFn.html" title="class in com.cloudera.crunch">FilterFn</A><S> fn)</CODE> |
| |
| <BR> |
| </TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>static |
| <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="0" SUMMARY=""> |
| <TR ALIGN="right" VALIGN=""> |
| <TD NOWRAP><FONT SIZE="-1"> |
| <CODE><S> <A HREF="../../../com/cloudera/crunch/FilterFn.html" title="class in com.cloudera.crunch">FilterFn</A><S></CODE></FONT></TD> |
| </TR> |
| </TABLE> |
| </CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../com/cloudera/crunch/FilterFn.html#or(com.cloudera.crunch.FilterFn...)">or</A></B>(<A HREF="../../../com/cloudera/crunch/FilterFn.html" title="class in com.cloudera.crunch">FilterFn</A><S>... fns)</CODE> |
| |
| <BR> |
| </TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> void</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../com/cloudera/crunch/FilterFn.html#process(T, com.cloudera.crunch.Emitter)">process</A></B>(<A HREF="../../../com/cloudera/crunch/FilterFn.html" title="type parameter in FilterFn">T</A> input, |
| <A HREF="../../../com/cloudera/crunch/Emitter.html" title="interface in com.cloudera.crunch">Emitter</A><<A HREF="../../../com/cloudera/crunch/FilterFn.html" title="type parameter in FilterFn">T</A>> emitter)</CODE> |
| |
| <BR> |
| Processes the records from a <A HREF="../../../com/cloudera/crunch/PCollection.html" title="interface in com.cloudera.crunch"><CODE>PCollection</CODE></A>.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> float</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../com/cloudera/crunch/FilterFn.html#scaleFactor()">scaleFactor</A></B>()</CODE> |
| |
| <BR> |
| Returns an estimate of how applying this function to a <A HREF="../../../com/cloudera/crunch/PCollection.html" title="interface in com.cloudera.crunch"><CODE>PCollection</CODE></A> |
| will cause it to change in side.</TD> |
| </TR> |
| </TABLE> |
| <A NAME="methods_inherited_from_class_com.cloudera.crunch.DoFn"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> |
| <TH ALIGN="left"><B>Methods inherited from class com.cloudera.crunch.<A HREF="../../../com/cloudera/crunch/DoFn.html" title="class in com.cloudera.crunch">DoFn</A></B></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD><CODE><A HREF="../../../com/cloudera/crunch/DoFn.html#cleanup(com.cloudera.crunch.Emitter)">cleanup</A>, <A HREF="../../../com/cloudera/crunch/DoFn.html#configure(org.apache.hadoop.conf.Configuration)">configure</A>, <A HREF="../../../com/cloudera/crunch/DoFn.html#getConfiguration()">getConfiguration</A>, <A HREF="../../../com/cloudera/crunch/DoFn.html#getCounter(java.lang.Enum)">getCounter</A>, <A HREF="../../../com/cloudera/crunch/DoFn.html#getCounter(java.lang.String, java.lang.String)">getCounter</A>, <A HREF="../../../com/cloudera/crunch/DoFn.html#getStatus()">getStatus</A>, <A HREF="../../../com/cloudera/crunch/DoFn.html#getTaskAttemptID()">getTaskAttemptID</A>, <A HREF="../../../com/cloudera/crunch/DoFn.html#initialize()">initialize</A>, <A HREF="../../../com/cloudera/crunch/DoFn.html#progress()">progress</A>, <A HREF="../../../com/cloudera/crunch/DoFn.html#setConfigurationForTest(org.apache.hadoop.conf.Configuration)">setConfigurationForTest</A>, <A HREF="../../../com/cloudera/crunch/DoFn.html#setContext(org.apache.hadoop.mapreduce.TaskInputOutputContext)">setContext</A>, <A HREF="../../../com/cloudera/crunch/DoFn.html#setStatus(java.lang.String)">setStatus</A></CODE></TD> |
| </TR> |
| </TABLE> |
| <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> |
| <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> |
| </TABLE> |
| |
| <P> |
| |
| <!-- ========= 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="FilterFn()"><!-- --></A><H3> |
| FilterFn</H3> |
| <PRE> |
| public <B>FilterFn</B>()</PRE> |
| <DL> |
| </DL> |
| |
| <!-- ============ METHOD DETAIL ========== --> |
| |
| <A NAME="method_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>Method Detail</B></FONT></TH> |
| </TR> |
| </TABLE> |
| |
| <A NAME="accept(java.lang.Object)"><!-- --></A><A NAME="accept(T)"><!-- --></A><H3> |
| accept</H3> |
| <PRE> |
| public abstract boolean <B>accept</B>(<A HREF="../../../com/cloudera/crunch/FilterFn.html" title="type parameter in FilterFn">T</A> input)</PRE> |
| <DL> |
| <DD>If true, emit the given record. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="process(java.lang.Object,com.cloudera.crunch.Emitter)"><!-- --></A><A NAME="process(T, com.cloudera.crunch.Emitter)"><!-- --></A><H3> |
| process</H3> |
| <PRE> |
| public void <B>process</B>(<A HREF="../../../com/cloudera/crunch/FilterFn.html" title="type parameter in FilterFn">T</A> input, |
| <A HREF="../../../com/cloudera/crunch/Emitter.html" title="interface in com.cloudera.crunch">Emitter</A><<A HREF="../../../com/cloudera/crunch/FilterFn.html" title="type parameter in FilterFn">T</A>> emitter)</PRE> |
| <DL> |
| <DD><B>Description copied from class: <CODE><A HREF="../../../com/cloudera/crunch/DoFn.html#process(S, com.cloudera.crunch.Emitter)">DoFn</A></CODE></B></DD> |
| <DD>Processes the records from a <A HREF="../../../com/cloudera/crunch/PCollection.html" title="interface in com.cloudera.crunch"><CODE>PCollection</CODE></A>. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="../../../com/cloudera/crunch/DoFn.html#process(S, com.cloudera.crunch.Emitter)">process</A></CODE> in class <CODE><A HREF="../../../com/cloudera/crunch/DoFn.html" title="class in com.cloudera.crunch">DoFn</A><<A HREF="../../../com/cloudera/crunch/FilterFn.html" title="type parameter in FilterFn">T</A>,<A HREF="../../../com/cloudera/crunch/FilterFn.html" title="type parameter in FilterFn">T</A>></CODE></DL> |
| </DD> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>input</CODE> - The input record<DD><CODE>emitter</CODE> - The emitter to send the output to</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="scaleFactor()"><!-- --></A><H3> |
| scaleFactor</H3> |
| <PRE> |
| public float <B>scaleFactor</B>()</PRE> |
| <DL> |
| <DD><B>Description copied from class: <CODE><A HREF="../../../com/cloudera/crunch/DoFn.html#scaleFactor()">DoFn</A></CODE></B></DD> |
| <DD>Returns an estimate of how applying this function to a <A HREF="../../../com/cloudera/crunch/PCollection.html" title="interface in com.cloudera.crunch"><CODE>PCollection</CODE></A> |
| will cause it to change in side. The optimizer uses these estimates to |
| decide where to break up dependent MR jobs into separate Map and Reduce |
| phases in order to minimize I/O. |
| |
| <p> |
| Subclasses of <code>DoFn</code> that will substantially alter the size of the |
| resulting <code>PCollection</code> should override this method. |
| <P> |
| <DD><DL> |
| <DT><B>Overrides:</B><DD><CODE><A HREF="../../../com/cloudera/crunch/DoFn.html#scaleFactor()">scaleFactor</A></CODE> in class <CODE><A HREF="../../../com/cloudera/crunch/DoFn.html" title="class in com.cloudera.crunch">DoFn</A><<A HREF="../../../com/cloudera/crunch/FilterFn.html" title="type parameter in FilterFn">T</A>,<A HREF="../../../com/cloudera/crunch/FilterFn.html" title="type parameter in FilterFn">T</A>></CODE></DL> |
| </DD> |
| <DD><DL> |
| </DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="and(com.cloudera.crunch.FilterFn...)"><!-- --></A><H3> |
| and</H3> |
| <PRE> |
| public static <S> <A HREF="../../../com/cloudera/crunch/FilterFn.html" title="class in com.cloudera.crunch">FilterFn</A><S> <B>and</B>(<A HREF="../../../com/cloudera/crunch/FilterFn.html" title="class in com.cloudera.crunch">FilterFn</A><S>... fns)</PRE> |
| <DL> |
| <DD><DL> |
| </DL> |
| </DD> |
| </DL> |
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| <A NAME="or(com.cloudera.crunch.FilterFn...)"><!-- --></A><H3> |
| or</H3> |
| <PRE> |
| public static <S> <A HREF="../../../com/cloudera/crunch/FilterFn.html" title="class in com.cloudera.crunch">FilterFn</A><S> <B>or</B>(<A HREF="../../../com/cloudera/crunch/FilterFn.html" title="class in com.cloudera.crunch">FilterFn</A><S>... fns)</PRE> |
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| <A NAME="not(com.cloudera.crunch.FilterFn)"><!-- --></A><H3> |
| not</H3> |
| <PRE> |
| public static <S> <A HREF="../../../com/cloudera/crunch/FilterFn.html" title="class in com.cloudera.crunch">FilterFn</A><S> <B>not</B>(<A HREF="../../../com/cloudera/crunch/FilterFn.html" title="class in com.cloudera.crunch">FilterFn</A><S> fn)</PRE> |
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