Package org.springframework.batch.item.support

Class ClassifierCompositeItemWriter<T>

java.lang.Object

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

All Implemented Interfaces:

ItemWriter<T>

public class ClassifierCompositeItemWriter<T>
extends Object
implements ItemWriter<T>

Calls one of a collection of ItemWriters for each item, based on a router pattern implemented through the provided Classifier. The implementation is thread-safe if all delegates are thread-safe.

Since:

2.0

Author:

Dave Syer, Glenn Renfro, Mahmoud Ben Hassine

Constructor Summary

Constructors

Constructor	Description
ClassifierCompositeItemWriter()

Method Summary

Modifier and Type	Method	Description
void	setClassifier(org.springframework.classify.Classifier<T,ItemWriter<? super T>> classifier)
void	write(Chunk<? extends T> items)	Delegates to injected ItemWriter instances according to their classification by the Classifier.

Methods inherited from class java.lang.Object

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

Constructor Details

ClassifierCompositeItemWriter

public ClassifierCompositeItemWriter()

Method Details

setClassifier

public void setClassifier(org.springframework.classify.Classifier<T,ItemWriter<? super T>> classifier)

Parameters:

classifier - the classifier to set

write

public void write(Chunk<? extends T> items)
           throws Exception

Delegates to injected ItemWriter instances according to their classification by the Classifier.

Specified by:

write in interface ItemWriter<T>

Parameters:

items - of items to be written. Must not be null.

Throws:

Exception - if there are errors. The framework will catch the exception and convert or rethrow it as appropriate.