Class ReflectiveMethod

java.lang.Object

org.springframework.data.jpa.util.ReflectiveMethod

public class ReflectiveMethod
extends Object

A method resolved by name for reflective invocation.

Resolution prefers a public interface declaring the method over the implementation type. Implementation types may live in internal packages without being public, so invoking the interface method avoids making internal members accessible.

Intended for internal use only.

Since:

4.2

Author:

Oscar Fanchin, Christoph Strobl, Mark Paluch

Method Summary

Modifier and Type	Method	Description
static @Nullable ReflectiveMethod	find(Class<?> type, String methodName, ReflectionUtils.MethodFilter filter)	Find the method named methodName on type that matches filter.
static ReflectiveMethod	get(Class<?> type, String methodName)	Resolve the method named methodName on type regardless of its parameters.
static ReflectiveMethod	get(Class<?> type, String methodName, Class<?>... parameterTypes)	Resolve the method named methodName on type accepting exactly parameterTypes.
static ReflectiveMethod	get(Class<?> type, String methodName, ReflectionUtils.MethodFilter filter)	Resolve the method named methodName on type that matches filter.
Class<?>	getLookupType()	Type on which the method was looked up.
String	getMethodName()
Class<?>	getReturnType()
@Nullable Object	invoke(@Nullable Object target, Object... args)	Invoke the method on target, rethrowing target exceptions as ReflectionUtils.invokeMethod(Method, Object, Object...) does.
String	toString()

Methods inherited from class Object

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

Method Details

get

public static ReflectiveMethod get(Class<?> type,
 String methodName)

Resolve the method named methodName on type regardless of its parameters.

Throws:

IllegalStateException - if no such method exists.

get

public static ReflectiveMethod get(Class<?> type,
 String methodName,
 Class<?>... parameterTypes)

Resolve the method named methodName on type accepting exactly parameterTypes.

Throws:

IllegalStateException - if no such method exists.

get

public static ReflectiveMethod get(Class<?> type,
 String methodName,
 ReflectionUtils.MethodFilter filter)

Resolve the method named methodName on type that matches filter.

Throws:

IllegalStateException - if no such method exists.

See Also:

• find(Class, String, ReflectionUtils.MethodFilter)

find

public static @Nullable ReflectiveMethod find(Class<?> type,
 String methodName,
 ReflectionUtils.MethodFilter filter)

Find the method named methodName on type that matches filter.

Returns:

the resolved method, or null if none matches.

getLookupType

public Class<?> getLookupType()

Type on which the method was looked up.

Returns:

the type on which the method was looked up.

getMethodName

public String getMethodName()

getReturnType

public Class<?> getReturnType()

invoke

public @Nullable Object invoke(@Nullable Object target,
 Object... args)

Invoke the method on target, rethrowing target exceptions as ReflectionUtils.invokeMethod(Method, Object, Object...) does.

Parameters:

target - the receiver, or null for a static method.

toString

public String toString()

Overrides:

toString in class Object