Package org.springframework.batch.core.resource

Class StepExecutionSimpleCompletionPolicy

java.lang.Object

org.springframework.batch.core.resource.StepExecutionSimpleCompletionPolicy

All Implemented Interfaces:

StepExecutionListener, StepListener, CompletionPolicy

public class StepExecutionSimpleCompletionPolicy
extends Object
implements StepExecutionListener, CompletionPolicy

A CompletionPolicy that picks up a commit interval from JobParameters by listening to the start of a step. Use anywhere that a CompletionPolicy can be used (usually at the chunk level in a step), and inject as a StepExecutionListener into the surrounding step. N.B. only after the step has started will the completion policy be usable.

It is easier and probably preferable to simply declare the chunk with a commit-interval that is a late-binding expression (e.g. #{jobParameters['commit.interval']}). That feature is available from of Spring Batch 2.1.7.

Author:

Dave Syer, Mahmoud Ben Hassine

See Also:

• CompletionPolicy

Constructor Summary

Constructors

Constructor	Description
StepExecutionSimpleCompletionPolicy()

Method Summary

Modifier and Type	Method	Description
void	beforeStep(StepExecution stepExecution)	Set up a SimpleCompletionPolicy with a commit interval taken from the JobParameters.
boolean	isComplete(RepeatContext context)
boolean	isComplete(RepeatContext context, RepeatStatus result)
void	setKeyName(String keyName)	Public setter for the key name of a Long value in the JobParameters that will contain a commit interval.
RepeatContext	start(RepeatContext parent)
String	toString()	Delegates to the wrapped CompletionPolicy if set, otherwise returns the value of setKeyName(String).
void	update(RepeatContext context)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.batch.core.StepExecutionListener

afterStep

Constructor Details

StepExecutionSimpleCompletionPolicy

public StepExecutionSimpleCompletionPolicy()

Method Details

setKeyName

public void setKeyName(String keyName)

Public setter for the key name of a Long value in the JobParameters that will contain a commit interval. Defaults to "commit.interval".

Parameters:

keyName - the keyName to set

beforeStep

public void beforeStep(StepExecution stepExecution)

Set up a SimpleCompletionPolicy with a commit interval taken from the JobParameters. If there is a Long parameter with the given key name, the intValue of this parameter is used. If not an exception will be thrown.

Specified by:

beforeStep in interface StepExecutionListener

Parameters:

stepExecution - instance of StepExecution.

See Also:

• StepExecutionListener.beforeStep(org.springframework.batch.core.StepExecution)

isComplete

public boolean isComplete(RepeatContext context,
 RepeatStatus result)

Specified by:

isComplete in interface CompletionPolicy

Returns:

true if the commit interval has been reached or the result indicates completion

See Also:

• CompletionPolicy.isComplete(RepeatContext, RepeatStatus)

isComplete

public boolean isComplete(RepeatContext context)

Specified by:

isComplete in interface CompletionPolicy

Returns:

if the commit interval has been reached

See Also:

• CompletionPolicy.isComplete(org.springframework.batch.repeat.RepeatContext)

start

public RepeatContext start(RepeatContext parent)

Specified by:

start in interface CompletionPolicy

Returns:

a new RepeatContext

See Also:

• CompletionPolicy.start(org.springframework.batch.repeat.RepeatContext)

update

public void update(RepeatContext context)

Specified by:

update in interface CompletionPolicy

See Also:

• CompletionPolicy.update(org.springframework.batch.repeat.RepeatContext)

toString

public String toString()

Delegates to the wrapped CompletionPolicy if set, otherwise returns the value of setKeyName(String).

Overrides:

toString in class Object