Package com.arcadedb.function.java

Class JavaMethodFunctionDefinition

java.lang.Object

com.arcadedb.function.java.JavaMethodFunctionDefinition

All Implemented Interfaces:

FunctionDefinition

public class JavaMethodFunctionDefinition
extends Object
implements FunctionDefinition

Maps a Java method execution to a callable function.

Author:

Luca Garulli ([email protected])

Constructor Summary

Constructors

Constructor	Description
JavaMethodFunctionDefinition(Object instance, Method method)	Creates a function bound to a Java method.
JavaMethodFunctionDefinition(Method method)	Creates a function bound to a static Java method.

Method Summary

Modifier and Type	Method	Description
Object	execute(Object... parameters)	Executes the function passing optional parameters.
Object	getInstance()	Returns the current java object instance to use for method calling.
String	getName()	Returns the name of the function.

Methods inherited from class java.lang.Object

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

Constructor Detail

JavaMethodFunctionDefinition

public JavaMethodFunctionDefinition(Object instance,
                                    Method method)
                             throws NoSuchMethodException,
                                    InvocationTargetException,
                                    InstantiationException,
                                    IllegalAccessException

Creates a function bound to a Java method.

Parameters:

instance - Java object against where to invoke the method

method - Java Method object to invoke

Throws:

NoSuchMethodException

InvocationTargetException

InstantiationException

IllegalAccessException

JavaMethodFunctionDefinition

public JavaMethodFunctionDefinition(Method method)
                             throws NoSuchMethodException,
                                    InvocationTargetException,
                                    InstantiationException,
                                    IllegalAccessException

Creates a function bound to a static Java method.

Parameters:

method - static method to execute

Throws:

NoSuchMethodException

InvocationTargetException

InstantiationException

IllegalAccessException

Method Detail

getName

public String getName()

Description copied from interface: FunctionDefinition

Returns the name of the function.

Specified by:

getName in interface FunctionDefinition

execute

public Object execute(Object... parameters)

Description copied from interface: FunctionDefinition

Executes the function passing optional parameters.

Specified by:

execute in interface FunctionDefinition

Parameters:

parameters - are optional and can be positional or a map of key/value pairs.

Returns:

The result of the function

getInstance

public Object getInstance()

Returns the current java object instance to use for method calling. If the instance is null, then the method is static.