org.springframework.expression.spel.support

类 ReflectiveMethodExecutor

java.lang.Object

org.springframework.expression.spel.support.ReflectiveMethodExecutor

所有已实现的接口:

MethodExecutor

public class ReflectiveMethodExecutor
extends Object
implements MethodExecutor

MethodExecutor that works via reflection.

从以下版本开始:

3.0

作者:

Andy Clement, Juergen Hoeller

构造器概要

构造器

构造器和说明
ReflectiveMethodExecutor(Method method) Create a new executor for the given method.

方法概要

限定符和类型	方法和说明
boolean	didArgumentConversionOccur()
TypedValue	execute(EvaluationContext context, Object target, Object... arguments) Execute a command using the specified arguments, and using the specified expression state.
Method	getMethod() Return the original method that this executor has been configured for.
Class<?>	getPublicDeclaringClass() Find the first public class in the methods declaring class hierarchy that declares this method.

从类继承的方法 java.lang.Object

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

构造器详细资料

ReflectiveMethodExecutor

public ReflectiveMethodExecutor(Method method)

Create a new executor for the given method.

参数:

method - the method to invoke

方法详细资料

getMethod

public Method getMethod()

Return the original method that this executor has been configured for.

getPublicDeclaringClass

@Nullable
public Class<?> getPublicDeclaringClass()

Find the first public class in the methods declaring class hierarchy that declares this method. Sometimes the reflective method discovery logic finds a suitable method that can easily be called via reflection but cannot be called from generated code when compiling the expression because of visibility restrictions. For example if a non-public class overrides toString(), this helper method will walk up the type hierarchy to find the first public type that declares the method (if there is one!). For toString() it may walk as far as Object.

didArgumentConversionOccur

public boolean didArgumentConversionOccur()

execute

public TypedValue execute(EvaluationContext context,
                          Object target,
                          Object... arguments)
                   throws AccessException

从接口复制的说明: MethodExecutor

Execute a command using the specified arguments, and using the specified expression state.

指定者:

execute 在接口中 MethodExecutor

参数:

context - the evaluation context in which the command is being executed

target - the target object of the call - null for static methods

arguments - the arguments to the executor, should match (in terms of number and type) whatever the command will need to run

返回:

the value returned from execution

抛出:

AccessException - if there is a problem executing the command or the MethodExecutor is no longer valid