程序包 cn.taketoday.expression.spel.support

类 ReflectiveMethodExecutor

java.lang.Object

cn.taketoday.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:

4.0

作者:

Andy Clement, Juergen Hoeller

字段概要

字段

修饰符和类型	字段	说明
private boolean	argumentConversionOccurred
private boolean	computedPublicDeclaringClass
private final Method	methodToInvoke
private final Method	originalMethod
private Class<?>	publicDeclaringClass
private final Integer	varargsPosition

构造器概要

构造器

构造器	说明
ReflectiveMethodExecutor(Method method)	Create a new executor for the given method.
ReflectiveMethodExecutor(Method method, Class<?> targetClass)	Create a new executor for the given method.

方法概要

修饰符和类型	方法	说明
boolean	didArgumentConversionOccur()
private Class<?>	discoverPublicDeclaringClass(Method method, Class<?> clazz)
TypedValue	execute(EvaluationContext context, Object target, Object... arguments)	Execute a command using the specified arguments, and using the specified expression state.
final 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

字段详细资料

originalMethod

private final Method originalMethod

methodToInvoke

private final Method methodToInvoke

varargsPosition

@Nullable
private final Integer varargsPosition

computedPublicDeclaringClass

private boolean computedPublicDeclaringClass

publicDeclaringClass

@Nullable
private Class<?> publicDeclaringClass

argumentConversionOccurred

private boolean argumentConversionOccurred

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

ReflectiveMethodExecutor

public ReflectiveMethodExecutor(Method method,
 @Nullable
 Class<?> targetClass)

Create a new executor for the given method.

参数:

method - the method to invoke

targetClass - the target class to invoke the method on

方法详细资料

getMethod

public final 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.

discoverPublicDeclaringClass

@Nullable
private Class<?> discoverPublicDeclaringClass(Method method,
 Class<?> clazz)

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