org.springframework.batch.support
Class BinaryExceptionClassifier

java.lang.Object
  org.springframework.batch.support.ExceptionClassifierSupport
      org.springframework.batch.support.BinaryExceptionClassifier

All Implemented Interfaces:

ExceptionClassifier

public class BinaryExceptionClassifier
extends ExceptionClassifierSupport

A ExceptionClassifier that has only two classes of exception. Provides convenient methods for setting up and querying the classification with boolean return type.

Author:

Dave Syer

Field Summary

static String

NON_DEFAULT The classifier result for a non-default exception.

Fields inherited from class org.springframework.batch.support.ExceptionClassifierSupport

DEFAULT

Constructor Summary

BinaryExceptionClassifier()

Method Summary

Object	classify(Throwable throwable) Returns either ExceptionClassifierSupport.DEFAULT or NON_DEFAULT depending on the type of the throwable.
boolean	isDefault(Throwable throwable) Convenience method to return boolean if the throwable is classified as default.
void	setExceptionClasses(Class[] exceptionClasses) Set the special exceptions.

Methods inherited from class org.springframework.batch.support.ExceptionClassifierSupport

getDefault

Methods inherited from class java.lang.Object

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

Field Detail

NON_DEFAULT

public static final String NON_DEFAULT

The classifier result for a non-default exception.

See Also:

Constant Field Values

Constructor Detail

BinaryExceptionClassifier

public BinaryExceptionClassifier()

Method Detail

setExceptionClasses

public final void setExceptionClasses(Class[] exceptionClasses)

Set the special exceptions. Any exception on the list, or subclasses thereof, will be classified as non-default.

Parameters:

exceptionClasses - defaults to Exception.

isDefault

public boolean isDefault(Throwable throwable)

Convenience method to return boolean if the throwable is classified as default.

Parameters:

throwable - the Throwable to classify

Returns:

true if it is default classified (i.e. not on the list provided in setExceptionClasses(Class[]).

classify

public Object classify(Throwable throwable)

Returns either ExceptionClassifierSupport.DEFAULT or NON_DEFAULT depending on the type of the throwable. If the type of the throwable or one of its ancestors is on the exception class list the classification is as NON_DEFAULT.

Specified by:

classify in interface ExceptionClassifier

Overrides:

classify in class ExceptionClassifierSupport

Parameters:

throwable - the input exception. Can be null.

Returns:

an object.

See Also:

setExceptionClasses(Class[]), ExceptionClassifierSupport.classify(Throwable)