ItemStreamSupport (Spring Batch 4.1.4.RELEASE API)

java.lang.Object
- org.springframework.batch.item.ItemStreamSupport

所有已实现的接口:
ItemStream
直接已知子类:
AbstractItemStreamItemReader, AbstractItemStreamItemWriter, CheckpointSupport, ChunkMonitor, TradeWriter
```
public abstract class ItemStreamSupport
extends java.lang.Object
implements ItemStream
```
Empty method implementation of ItemStream.
作者:
Dave Syer, Dean de Bree

构造器概要
构造器
构造器说明
ItemStreamSupport()

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`	`close()`	No-op.
`java.lang.String`	`getExecutionContextKey(java.lang.String key)`
`void`	`open(ExecutionContext executionContext)`	No-op.
`protected void`	`setExecutionContextName(java.lang.String name)`
`void`	`setName(java.lang.String name)`	The name of the component which will be used as a stem for keys in the `ExecutionContext`.
`void`	`update(ExecutionContext executionContext)`	Return empty `ExecutionContext`.

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

- 构造器详细资料
  - ItemStreamSupport
```
public ItemStreamSupport()
```
- 方法详细资料
  - close
```
public void close()
```
    No-op.
    指定者:
    close 在接口中 ItemStream
    另请参阅:
    ItemStream.close()
  - open
```
public void open(ExecutionContext executionContext)
```
    No-op.
    指定者:
    open 在接口中 ItemStream
    参数:
    executionContext - current step's ExecutionContext. Will be the executionContext from the last run of the step on a restart.
    另请参阅:
    ItemStream.open(ExecutionContext)
  - update
```
public void update(ExecutionContext executionContext)
```
    Return empty ExecutionContext.
    指定者:
    update 在接口中 ItemStream
    参数:
    executionContext - to be updated
    另请参阅:
    ItemStream.update(ExecutionContext)
  - setName
```
public void setName(java.lang.String name)
```
    The name of the component which will be used as a stem for keys in the ExecutionContext. Subclasses should provide a default value, e.g. the short form of the class name.
    参数:
    name - the name for the component
  - setExecutionContextName
```
protected void setExecutionContextName(java.lang.String name)
```
  - getExecutionContextKey
```
public java.lang.String getExecutionContextKey(java.lang.String key)
```