Package org.springframework.batch.item.support

Class ListItemReader<T>

java.lang.Object

org.springframework.batch.item.support.ListItemReader<T>

All Implemented Interfaces:

ItemReader<T>

public class ListItemReader<T>
extends Object
implements ItemReader<T>

An ItemReader that pulls data from a list. Useful for testing.

This reader is not thread-safe.

Author:

Dave Syer, jojoldu

Constructor Summary

Constructors

Constructor	Description
ListItemReader(List<T> list)

Method Summary

Modifier and Type	Method	Description
T	read()	Reads a piece of input data and advance to the next one.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ListItemReader

public ListItemReader(List<T> list)

Method Details

read

@Nullable
public T read()

Description copied from interface: ItemReader

Reads a piece of input data and advance to the next one. Implementations must return null at the end of the input data set. In a transactional setting, caller might get the same item twice from successive calls (or otherwise), if the first call was in a transaction that rolled back.

Specified by:

read in interface ItemReader<T>

Returns:

T the item to be processed or null if the data source is exhausted