程序包 com.obermuhlner.scriptengine.java.execution

类 MethodExecutionStrategy

java.lang.Object

com.obermuhlner.scriptengine.java.execution.MethodExecutionStrategy

所有已实现的接口:

ExecutionStrategy

public class MethodExecutionStrategy
extends Object
implements ExecutionStrategy

The ExecutionStrategy that executes a specific method. This implementation has three static constructor methods to define the method that should be called:

• byMethod(Method, Object...) to call the specified method and pass it the specified arguments.
• byArgumentTypes(Class, String, Class[], Object...) to call the public method with the specified argument types and pass it the specified arguments.
• byMatchingArguments(Class, String, Object...) to call a public method that matches the specified arguments.

字段概要

字段

修饰符和类型	字段	说明
private Object[]	arguments
private Method	method

构造器概要

构造器

限定符	构造器	说明
private	MethodExecutionStrategy(Method method, Object... arguments)

方法概要

修饰符和类型	方法	说明
static MethodExecutionStrategy	byArgumentTypes(Class<?> clazz, String methodName, Class<?>[] argumentTypes, Object... arguments)	Creates a MethodExecutionStrategy that will call the public method with the specified argument types and passes the specified argument list.
static MethodExecutionStrategy	byMainMethod(Class<?> clazz, String... arguments)	Creates a MethodExecutionStrategy that will call the public static void main(String[] args) with the specified arguments.
static MethodExecutionStrategy	byMatchingArguments(Class<?> clazz, String methodName, Object... arguments)	Creates a MethodExecutionStrategy that will call a public method that matches the specified arguments.
static MethodExecutionStrategy	byMethod(Method method, Object... arguments)	Creates a MethodExecutionStrategy that will call the specified Method.
Object	execute(Object instance)	Executes a method on an object instance, or a static method if the specified instance is null.

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

method

private Method method

arguments

private Object[] arguments

构造器详细资料

MethodExecutionStrategy

private MethodExecutionStrategy(Method method,
 Object... arguments)

方法详细资料

execute

public Object execute(Object instance)
               throws ScriptException

从接口复制的说明: ExecutionStrategy

Executes a method on an object instance, or a static method if the specified instance is null.

指定者:

execute 在接口中 ExecutionStrategy

参数:

instance - the object instance to be executed or null to execute a static method

返回:

the return value of the method, or null

抛出:

ScriptException - if no method to execute was found

byMethod

public static MethodExecutionStrategy byMethod(Method method,
 Object... arguments)

Creates a MethodExecutionStrategy that will call the specified Method.

参数:

method - the Method to execute

arguments - the arguments to be passed to the method

返回:

the value returned by the method, or null

byMainMethod

public static MethodExecutionStrategy byMainMethod(Class<?> clazz,
 String... arguments)
                                            throws ScriptException

Creates a MethodExecutionStrategy that will call the public static void main(String[] args) with the specified arguments.

参数:

clazz - the Class

arguments - the arguments to pass to the main method

返回:

the created MethodExecutionStrategy

抛出:

ScriptException - if no public static void main(String[] args) method was found

byArgumentTypes

public static MethodExecutionStrategy byArgumentTypes(Class<?> clazz,
 String methodName,
 Class<?>[] argumentTypes,
 Object... arguments)
                                               throws ScriptException

Creates a MethodExecutionStrategy that will call the public method with the specified argument types and passes the specified argument list.

参数:

clazz - the Class

methodName - the method name

argumentTypes - the argument types defining the constructor to call

arguments - the arguments to pass to the constructor (may contain null)

返回:

the created MethodExecutionStrategy

抛出:

ScriptException - if no matching public method was found

byMatchingArguments

public static MethodExecutionStrategy byMatchingArguments(Class<?> clazz,
 String methodName,
 Object... arguments)
                                                   throws ScriptException

Creates a MethodExecutionStrategy that will call a public method that matches the specified arguments. A method must match all specified arguments, except null values which match any non-primitive type. The conversion from object types into corresponding primitive types (for example Integer into int) is handled automatically.

参数:

clazz - the Class

methodName - the method name

arguments - the arguments to be passed to the method

返回:

the created MethodExecutionStrategy

抛出:

ScriptException - if no matching public method was found