java.lang.Object
- org.springframework.batch.core.step.AbstractStep
- - org.springframework.batch.core.partition.support.PartitionStep

All Implemented Interfaces:
Step, org.springframework.beans.factory.Aware, org.springframework.beans.factory.BeanNameAware, org.springframework.beans.factory.InitializingBean
Direct Known Subclasses:
PartitionStep
```
public class PartitionStep
extends AbstractStep
```
Implementation of Step which partitions the execution and spreads the load using a PartitionHandler.
Since:
2.0
Author:
Dave Syer

Field Summary
- Fields inherited from interface org.springframework.batch.core.Step
  STEP_TYPE_KEY

Constructor Summary
Constructors
Constructor Description
PartitionStep()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`afterPropertiesSet()`	Assert that mandatory properties are set (stepExecutionSplitter, partitionHandler) and delegate top superclass.
`protected void`	`doExecute(StepExecution stepExecution)`	Delegate execution to the `PartitionHandler` provided.
`protected PartitionHandler`	`getPartitionHandler()`
`protected StepExecutionSplitter`	`getStepExecutionSplitter()`
`void`	`setPartitionHandler(PartitionHandler partitionHandler)`	A `PartitionHandler` which can send out step executions for remote processing and bring back the results.
`void`	`setStepExecutionAggregator(StepExecutionAggregator stepExecutionAggregator)`	A `StepExecutionAggregator` that can aggregate step executions when they come back from the handler.
`void`	`setStepExecutionSplitter(StepExecutionSplitter stepExecutionSplitter)`	Public setter for mandatory property `StepExecutionSplitter`.

Methods inherited from class org.springframework.batch.core.step.AbstractStep
close, doExecutionRegistration, doExecutionRelease, execute, getCompositeListener, getJobRepository, getName, getStartLimit, isAllowStartIfComplete, open, registerStepExecutionListener, setAllowStartIfComplete, setBeanName, setJobRepository, setName, setStartLimit, setStepExecutionListeners, toString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - PartitionStep
```
public PartitionStep()
```
- Method Detail
  - setPartitionHandler
```
public void setPartitionHandler(PartitionHandler partitionHandler)
```
    A PartitionHandler which can send out step executions for remote processing and bring back the results.
    Parameters:
    partitionHandler - the PartitionHandler to set
  - setStepExecutionAggregator
```
public void setStepExecutionAggregator(StepExecutionAggregator stepExecutionAggregator)
```
    A StepExecutionAggregator that can aggregate step executions when they come back from the handler. Defaults to a DefaultStepExecutionAggregator.
    Parameters:
    stepExecutionAggregator - the StepExecutionAggregator to set
  - setStepExecutionSplitter
```
public void setStepExecutionSplitter(StepExecutionSplitter stepExecutionSplitter)
```
    Public setter for mandatory property StepExecutionSplitter.
    Parameters:
    stepExecutionSplitter - the StepExecutionSplitter to set
  - afterPropertiesSet
```
public void afterPropertiesSet()
                        throws java.lang.Exception
```
    Assert that mandatory properties are set (stepExecutionSplitter, partitionHandler) and delegate top superclass.
    Specified by:
    afterPropertiesSet in interface org.springframework.beans.factory.InitializingBean
    Overrides:
    afterPropertiesSet in class AbstractStep
    Throws:
    java.lang.Exception
    See Also:
    AbstractStep.afterPropertiesSet()
  - doExecute
```
protected void doExecute(StepExecution stepExecution)
                  throws java.lang.Exception
```
    Delegate execution to the PartitionHandler provided. The StepExecution passed in here becomes the parent or master execution for the partition, summarising the status on exit of the logical grouping of work carried out by the PartitionHandler. The individual step executions and their input parameters (through ExecutionContext) for the partition elements are provided by the StepExecutionSplitter.
    Specified by:
    doExecute in class AbstractStep
    Parameters:
    stepExecution - the master step execution for the partition
    Throws:
    java.lang.Exception - checked exception thrown by implementation
    See Also:
    Step.execute(StepExecution)
  - getStepExecutionSplitter
```
protected StepExecutionSplitter getStepExecutionSplitter()
```
  - getPartitionHandler
```
protected PartitionHandler getPartitionHandler()
```

Class PartitionStep

Field Summary

Fields inherited from interface org.springframework.batch.core.Step

Constructor Summary

Method Summary

Methods inherited from class org.springframework.batch.core.step.AbstractStep

Methods inherited from class java.lang.Object

Constructor Detail

PartitionStep

Method Detail

setPartitionHandler

setStepExecutionAggregator

setStepExecutionSplitter

afterPropertiesSet

doExecute

getStepExecutionSplitter

getPartitionHandler