PartitionStep (Spring Batch 4.1.4.RELEASE API)

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

所有已实现的接口:
Step, StepLocator, org.springframework.beans.factory.Aware, org.springframework.beans.factory.BeanNameAware, org.springframework.beans.factory.InitializingBean
```
public class PartitionStep
extends PartitionStep
implements StepLocator
```
An extension of the PartitionStep that provides additional semantics required by JSR-352. Specifically, this implementation adds the required lifecycle calls to the PartitionReducer if it is used.
从以下版本开始:
3.0
作者:
Michael Minella

字段概要
- 从接口继承的字段 org.springframework.batch.core.Step
  STEP_TYPE_KEY

构造器概要
构造器
构造器说明
PartitionStep()

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`protected void`	`doExecute(StepExecution stepExecution)`	Delegate execution to the `PartitionHandler` provided.
`Step`	`getStep(java.lang.String stepName)`
`java.util.Collection<java.lang.String>`	`getStepNames()`
`void`	`setPartitionReducer(javax.batch.api.partition.PartitionReducer reducer)`

从类继承的方法 org.springframework.batch.core.partition.support.PartitionStep
afterPropertiesSet, getPartitionHandler, getStepExecutionSplitter, setPartitionHandler, setStepExecutionAggregator, setStepExecutionSplitter

从类继承的方法 org.springframework.batch.core.step.AbstractStep
close, doExecutionRegistration, doExecutionRelease, execute, getCompositeListener, getJobRepository, getName, getStartLimit, isAllowStartIfComplete, open, registerStepExecutionListener, setAllowStartIfComplete, setBeanName, setJobRepository, setName, setStartLimit, setStepExecutionListeners, toString

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- 构造器详细资料
  - PartitionStep
```
public PartitionStep()
```
- 方法详细资料
  - setPartitionReducer
```
public void setPartitionReducer(javax.batch.api.partition.PartitionReducer reducer)
```
  - 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, summarizing 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.
    覆盖:
    doExecute 在类中 PartitionStep
    参数:
    stepExecution - the master step execution for the partition
    抛出:
    java.lang.Exception - checked exception thrown by implementation
    另请参阅:
    Step.execute(StepExecution)
  - getStepNames
```
public java.util.Collection<java.lang.String> getStepNames()
```
    指定者:
    getStepNames 在接口中 StepLocator
  - getStep
```
public Step getStep(java.lang.String stepName)
             throws NoSuchStepException
```
    指定者:
    getStep 在接口中 StepLocator
    抛出:
    NoSuchStepException