co.cask.cdap.etl.mock.transform

Class StringValueFilterTransform

java.lang.Object

co.cask.cdap.etl.api.Transform<co.cask.cdap.api.data.format.StructuredRecord,co.cask.cdap.api.data.format.StructuredRecord>

co.cask.cdap.etl.mock.transform.StringValueFilterTransform

All Implemented Interfaces:

Destroyable, PipelineConfigurable, StageLifecycle<TransformContext>, SubmitterLifecycle<StageSubmitterContext>, Transformation<co.cask.cdap.api.data.format.StructuredRecord,co.cask.cdap.api.data.format.StructuredRecord>

public class StringValueFilterTransform
extends Transform<co.cask.cdap.api.data.format.StructuredRecord,co.cask.cdap.api.data.format.StructuredRecord>

Transform that filters out records whose configured field is a configured value. For example, can filter all records whose 'foo' field is equal to 'bar'. Assumes the field is of type string.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	StringValueFilterTransform.Config Config for the transform.

Field Summary

Fields

Modifier and Type	Field and Description
static PluginClass	PLUGIN_CLASS

Fields inherited from class co.cask.cdap.etl.api.Transform

PLUGIN_TYPE

Constructor Summary

Constructors

Constructor and Description
StringValueFilterTransform(StringValueFilterTransform.Config config)

Method Summary

Modifier and Type	Method and Description
void	configurePipeline(PipelineConfigurer pipelineConfigurer)
static ETLPlugin	getPlugin(String field, String value)
void	initialize(TransformContext context)
void	transform(co.cask.cdap.api.data.format.StructuredRecord input, Emitter<co.cask.cdap.api.data.format.StructuredRecord> emitter)

Methods inherited from class co.cask.cdap.etl.api.Transform

destroy, getContext, onRunFinish, prepareRun

Methods inherited from class java.lang.Object

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

Field Detail

PLUGIN_CLASS

public static final PluginClass PLUGIN_CLASS

Constructor Detail

StringValueFilterTransform

public StringValueFilterTransform(StringValueFilterTransform.Config config)

Method Detail

configurePipeline

public void configurePipeline(PipelineConfigurer pipelineConfigurer)
                       throws IllegalArgumentException

Specified by:

configurePipeline in interface PipelineConfigurable

Overrides:

configurePipeline in class Transform<co.cask.cdap.api.data.format.StructuredRecord,co.cask.cdap.api.data.format.StructuredRecord>

Throws:

IllegalArgumentException

initialize

public void initialize(TransformContext context)
                throws Exception

Specified by:

initialize in interface StageLifecycle<TransformContext>

Overrides:

initialize in class Transform<co.cask.cdap.api.data.format.StructuredRecord,co.cask.cdap.api.data.format.StructuredRecord>

Throws:

Exception

transform

public void transform(co.cask.cdap.api.data.format.StructuredRecord input,
                      Emitter<co.cask.cdap.api.data.format.StructuredRecord> emitter)
               throws Exception

Throws:

Exception

getPlugin

public static ETLPlugin getPlugin(String field,
                                  String value)