Package org.springframework.batch.support

Class AnnotationMethodResolver

java.lang.Object

org.springframework.batch.support.AnnotationMethodResolver

All Implemented Interfaces:

MethodResolver

public class AnnotationMethodResolver
extends Object
implements MethodResolver

MethodResolver implementation that finds a single Method on the given Class that contains the specified annotation type.

Author:

Mark Fisher

Constructor Summary

Constructors

Constructor	Description
AnnotationMethodResolver(Class<? extends Annotation> annotationType)	Create a MethodResolver for the specified Method-level annotation type.

Method Summary

Modifier and Type	Method	Description
Method	findMethod(Class<?> clazz)	Find a single Method on the given Class that contains the annotation type for which this resolver is searching.
Method	findMethod(Object candidate)	Find a single Method on the Class of the given candidate object that contains the annotation type for which this resolver is searching.

Methods inherited from class java.lang.Object

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

Constructor Details

AnnotationMethodResolver

public AnnotationMethodResolver(Class<? extends Annotation> annotationType)

Create a MethodResolver for the specified Method-level annotation type.

Parameters:

annotationType - establish the annotation to be used.

Method Details

findMethod

@Nullable
public Method findMethod(Object candidate)

Find a single Method on the Class of the given candidate object that contains the annotation type for which this resolver is searching.

Specified by:

findMethod in interface MethodResolver

Parameters:

candidate - the instance whose Class will be checked for the annotation

Returns:

a single matching Method instance or null if the candidate's Class contains no Methods with the specified annotation

Throws:

IllegalArgumentException - if more than one Method has the specified annotation

findMethod

@Nullable
public Method findMethod(Class<?> clazz)

Find a single Method on the given Class that contains the annotation type for which this resolver is searching.

Specified by:

findMethod in interface MethodResolver

Parameters:

clazz - the Class instance to check for the annotation

Returns:

a single matching Method instance or null if the Class contains no Methods with the specified annotation

Throws:

IllegalArgumentException - if more than one Method has the specified annotation