ItemStreamSupport (Spring Batch 4.1.4.RELEASE API)

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

All Implemented Interfaces:
ItemStream
Direct Known Subclasses:
AbstractItemStreamItemReader, AbstractItemStreamItemWriter, CheckpointSupport, ChunkMonitor, TradeWriter
```
public abstract class ItemStreamSupport
extends java.lang.Object
implements ItemStream
```
Empty method implementation of ItemStream.
Author:
Dave Syer, Dean de Bree

Constructor Summary
Constructors
Constructor Description
ItemStreamSupport()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`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`.

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

- Constructor Detail
  - ItemStreamSupport
```
public ItemStreamSupport()
```
- Method Detail
  - close
```
public void close()
```
    No-op.
    Specified by:
    close in interface ItemStream
    See Also:
    ItemStream.close()
  - open
```
public void open(ExecutionContext executionContext)
```
    No-op.
    Specified by:
    open in interface ItemStream
    Parameters:
    executionContext - current step's ExecutionContext. Will be the executionContext from the last run of the step on a restart.
    See Also:
    ItemStream.open(ExecutionContext)
  - update
```
public void update(ExecutionContext executionContext)
```
    Return empty ExecutionContext.
    Specified by:
    update in interface ItemStream
    Parameters:
    executionContext - to be updated
    See Also:
    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.
    Parameters:
    name - the name for the component
  - setExecutionContextName
```
protected void setExecutionContextName(java.lang.String name)
```
  - getExecutionContextKey
```
public java.lang.String getExecutionContextKey(java.lang.String key)
```