org.springframework.core
Class ExceptionDepthComparator

java.lang.Object
  org.springframework.core.ExceptionDepthComparator

All Implemented Interfaces:

Comparator<Class<? extends Throwable>>

public class ExceptionDepthComparator
extends Object
implements Comparator<Class<? extends Throwable>>

Comparator capable of sorting exceptions based on their depth from the thrown exception type.

Since:

3.0.3

Author:

Juergen Hoeller, Arjen Poutsma

Constructor Summary

ExceptionDepthComparator(Class<? extends Throwable> exceptionType)
Create a new ExceptionDepthComparator for the given exception type.

ExceptionDepthComparator(Throwable exception)
Create a new ExceptionDepthComparator for the given exception.

Method Summary

int	compare(Class<? extends Throwable> o1, Class<? extends Throwable> o2)
static Class<? extends Throwable>	findClosestMatch(Collection<Class<? extends Throwable>> exceptionTypes, Throwable targetException) Obtain the closest match from the given exception types for the given target exception.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

equals

Constructor Detail

ExceptionDepthComparator

public ExceptionDepthComparator(Throwable exception)

Create a new ExceptionDepthComparator for the given exception.

Parameters:

exception - the target exception to compare to when sorting by depth

ExceptionDepthComparator

public ExceptionDepthComparator(Class<? extends Throwable> exceptionType)

Create a new ExceptionDepthComparator for the given exception type.

Parameters:

exceptionType - the target exception type to compare to when sorting by depth

Method Detail

compare

public int compare(Class<? extends Throwable> o1,
                   Class<? extends Throwable> o2)

Specified by:

compare in interface Comparator<Class<? extends Throwable>>

findClosestMatch

public static Class<? extends Throwable> findClosestMatch(Collection<Class<? extends Throwable>> exceptionTypes,
                                                          Throwable targetException)

Obtain the closest match from the given exception types for the given target exception.

Parameters:

exceptionTypes - the collection of exception types

targetException - the target exception to find a match for

Returns:

the closest matching exception type from the given collection