org.apache.crunch

Class FilterFn.NotFn<S>

java.lang.Object

org.apache.crunch.DoFn<T,T>

org.apache.crunch.FilterFn<S>

org.apache.crunch.FilterFn.NotFn<S>

All Implemented Interfaces:

Serializable

Enclosing class:

FilterFn<T>

Deprecated.

Use FilterFns.not(FilterFn)

public static class FilterFn.NotFn<S>
extends FilterFn<S>

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.crunch.FilterFn

FilterFn.AndFn<S>, FilterFn.NotFn<S>, FilterFn.OrFn<S>

Constructor Summary

Constructors

Constructor and Description
FilterFn.NotFn(FilterFn<S> base) Deprecated.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	accept(S input) Deprecated. If true, emit the given record.
void	cleanup() Deprecated. Called during the cleanup of the MapReduce job this FilterFn is associated with.
void	configure(org.apache.hadoop.conf.Configuration conf) Deprecated. Configure this DoFn.
void	initialize() Deprecated. Initialize this DoFn.
float	scaleFactor() Deprecated. Returns an estimate of how applying this function to a PCollection will cause it to change in side.
void	setContext(org.apache.hadoop.mapreduce.TaskInputOutputContext<?,?,?,?> context) Deprecated. Called during setup to pass the TaskInputOutputContext to this DoFn instance.

Methods inherited from class org.apache.crunch.FilterFn

and, cleanup, not, or, process

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FilterFn.NotFn

public FilterFn.NotFn(FilterFn<S> base)

Deprecated.

Method Detail

configure

public void configure(org.apache.hadoop.conf.Configuration conf)

Deprecated.

Description copied from class: DoFn

Configure this DoFn. Subclasses may override this method to modify the configuration of the Job that this DoFn instance belongs to.

Called during the job planning phase by the crunch-client.

Overrides:

configure in class DoFn<S,S>

Parameters:

conf - The Configuration instance for the Job.

setContext

public void setContext(org.apache.hadoop.mapreduce.TaskInputOutputContext<?,?,?,?> context)

Deprecated.

Description copied from class: DoFn

Called during setup to pass the TaskInputOutputContext to this DoFn instance.

Overrides:

setContext in class DoFn<S,S>

initialize

public void initialize()

Deprecated.

Description copied from class: DoFn

Initialize this DoFn. This initialization will happen before the actual DoFn.process(Object, Emitter) is triggered. Subclasses may override this method to do appropriate initialization.

Called during the setup of the job instance this DoFn is associated with.

Overrides:

initialize in class DoFn<S,S>

cleanup

public void cleanup()

Deprecated.

Description copied from class: FilterFn

Called during the cleanup of the MapReduce job this FilterFn is associated with. Subclasses may override this method to do appropriate cleanup.

Overrides:

cleanup in class FilterFn<S>

accept

public boolean accept(S input)

Deprecated.

Description copied from class: FilterFn

If true, emit the given record.

Specified by:

accept in class FilterFn<S>

scaleFactor

public float scaleFactor()

Deprecated.

Description copied from class: DoFn

Returns an estimate of how applying this function to a PCollection 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.

Subclasses of DoFn that will substantially alter the size of the resulting PCollection should override this method.

Overrides:

scaleFactor in class FilterFn<S>