ItemReadListener (Spring Batch 4.1.4.RELEASE API)

All Superinterfaces:
StepListener
All Known Implementing Classes:
CompositeItemReadListener, DefaultItemFailureHandler, ItemListenerSupport, ItemReadListenerAdapter, MulticasterBatchListener, StagingItemListener, StepListenerSupport
```
public interface ItemReadListener<T>
extends StepListener
```
Listener interface around the reading of an item.
Author:
Lucas Ward, Mahmoud Ben Hassine

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`afterRead(T item)`	Called after `ItemReader.read()`.
`void`	`beforeRead()`	Called before `ItemReader.read()`
`void`	`onReadError(java.lang.Exception ex)`	Called if an error occurs while trying to read.

- Method Detail
  - beforeRead
```
void beforeRead()
```
    Called before ItemReader.read()
  - afterRead
```
void afterRead(T item)
```
    Called after ItemReader.read(). This method is called only for actual items (ie it is not called when the reader returns null).
    Parameters:
    item - returned from read()
  - onReadError
```
void onReadError(java.lang.Exception ex)
```
    Called if an error occurs while trying to read.
    Parameters:
    ex - thrown from ItemWriter