java.lang.Object
- org.springframework.batch.core.listener.StepExecutionListenerSupport
- - org.springframework.batch.core.resource.StepExecutionSimpleCompletionPolicy

所有已实现的接口:
StepExecutionListener, StepListener, CompletionPolicy
```
public class StepExecutionSimpleCompletionPolicy
extends StepExecutionListenerSupport
implements 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.
作者:
Dave Syer
另请参阅:
CompletionPolicy

构造器概要
构造器
构造器说明
StepExecutionSimpleCompletionPolicy()

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
`void`	`beforeStep(StepExecution stepExecution)`	Set up a `SimpleCompletionPolicy` with a commit interval taken from the `JobParameters`.
`boolean`	`isComplete(RepeatContext context)`	Allow policy to signal completion according to internal state, without having to wait for the callback to complete.
`boolean`	`isComplete(RepeatContext context, RepeatStatus result)`	Determine whether a batch is complete given the latest result from the callback.
`void`	`setKeyName(java.lang.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)`	Create a new context for the execution of a batch.
`java.lang.String`	`toString()`	Delegates to the wrapped `CompletionPolicy` if set, otherwise returns the value of `setKeyName(String)`.
`void`	`update(RepeatContext context)`	Give implementations the opportunity to update the state of the current batch.

从类继承的方法 org.springframework.batch.core.listener.StepExecutionListenerSupport
afterStep

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
  - StepExecutionSimpleCompletionPolicy
```
public StepExecutionSimpleCompletionPolicy()
```
- 方法详细资料
  - setKeyName
```
public void setKeyName(java.lang.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".
    参数:
    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.
    指定者:
    beforeStep 在接口中 StepExecutionListener
    覆盖:
    beforeStep 在类中 StepExecutionListenerSupport
    参数:
    stepExecution - instance of StepExecution.
    另请参阅:
    StepExecutionListenerSupport.beforeStep(org.springframework.batch.core.StepExecution)
  - isComplete
```
public boolean isComplete(RepeatContext context,
                          RepeatStatus result)
```
    从接口复制的说明: CompletionPolicy
    Determine whether a batch is complete given the latest result from the callback. If this method returns true then CompletionPolicy.isComplete(RepeatContext) should also (but not necessarily vice versa, since the answer here depends on the result).
    指定者:
    isComplete 在接口中 CompletionPolicy
    参数:
    context - the current batch context.
    result - the result of the latest batch item processing.
    返回:
    true if the commit interval has been reached or the result indicates completion
    另请参阅:
    CompletionPolicy.isComplete(RepeatContext, RepeatStatus)
  - isComplete
```
public boolean isComplete(RepeatContext context)
```
    从接口复制的说明: CompletionPolicy
    Allow policy to signal completion according to internal state, without having to wait for the callback to complete.
    指定者:
    isComplete 在接口中 CompletionPolicy
    参数:
    context - the current batch context.
    返回:
    if the commit interval has been reached
    另请参阅:
    CompletionPolicy.isComplete(org.springframework.batch.repeat.RepeatContext)
  - start
```
public RepeatContext start(RepeatContext parent)
```
    从接口复制的说明: CompletionPolicy
    Create a new context for the execution of a batch. N.B. implementations should not return the parent from this method - they must create a new context to meet the specific needs of the policy. The best way to do this might be to override an existing implementation and use the RepeatContext to store state in its attributes.
    指定者:
    start 在接口中 CompletionPolicy
    参数:
    parent - the current context if one is already in progress.
    返回:
    a new RepeatContext
    另请参阅:
    CompletionPolicy.start(org.springframework.batch.repeat.RepeatContext)
  - update
```
public void update(RepeatContext context)
```
    从接口复制的说明: CompletionPolicy
    Give implementations the opportunity to update the state of the current batch. Will be called once per callback, after it has been launched, but not necessarily after it completes (if the batch is asynchronous).
    指定者:
    update 在接口中 CompletionPolicy
    参数:
    context - the value returned by start.
    另请参阅:
    CompletionPolicy.update(org.springframework.batch.repeat.RepeatContext)
  - toString
```
public java.lang.String toString()
```
    Delegates to the wrapped CompletionPolicy if set, otherwise returns the value of setKeyName(String).
    覆盖:
    toString 在类中 java.lang.Object

类 StepExecutionSimpleCompletionPolicy

构造器概要

方法概要

从类继承的方法 org.springframework.batch.core.listener.StepExecutionListenerSupport

从类继承的方法 java.lang.Object

构造器详细资料

StepExecutionSimpleCompletionPolicy

方法详细资料

setKeyName

beforeStep

isComplete

isComplete

start

update

toString