leola.lang

Class ReflectionLeolaLibrary

java.lang.Object

leola.lang.ReflectionLeolaLibrary

All Implemented Interfaces:

LeolaLibrary

public class ReflectionLeolaLibrary
extends Object
implements LeolaLibrary

The Reflection API

Author:

Tony

Constructor Summary

Constructors

Constructor and Description
ReflectionLeolaLibrary()

Method Summary

Modifier and Type	Method and Description
LeoObject	_implements(String interfaceName, LeoObject leoMethods) Implements a Java Interface
LeoNativeClass	asNativeClass(Object obj) Converts the supplied object to a LeoNativeClass
LeoObject	call(LeoObject func, LeoObject... params) Calls the function and applies the array as function arguments to this function.
LeoObject	clone(LeoObject obj) Clones the object
LeoArray	getInstanceMethodsByName(Object instance, String methodName) Retrieves the instance methods of the supplied object
LeoClass.Metaclass	getMetaclass(LeoObject aClass) Retrieves the LeoClass.Metaclass information from the supplied LeoClass
LeoArray	getStaticMethods(Object instance) Retrieves the all instance methods of the supplied class
LeoArray	getStaticMethods(String className) Retrieves the all static methods of the supplied class
LeoArray	getStaticMethodsByName(String className, String methodName) Retrieves the static methods of the supplied class
void	init(Leola runtime, LeoNamespace namespace) Initializes the library.
LeoArray	instrospect(Object obj) Introspects the supplied object.
LeoArray	instrospectNames(Object obj) Retrieves all of the names of the supplied objects attributes.
LeoObject	newInstance(LeoObject classname, LeoObject... params) Reflectively create a new instance of a class.
String	type(LeoObject obj)

Methods inherited from class java.lang.Object

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

Constructor Detail

ReflectionLeolaLibrary

public ReflectionLeolaLibrary()

Method Detail

init

public void init(Leola runtime,
                 LeoNamespace namespace)
          throws LeolaRuntimeException

Description copied from interface: LeolaLibrary

Initializes the library.

Specified by:

init in interface LeolaLibrary

Throws:

LeolaRuntimeException

type

public String type(LeoObject obj)

Parameters:

obj -

Returns:

the type of LeoObject this is

asNativeClass

public LeoNativeClass asNativeClass(Object obj)

Converts the supplied object to a LeoNativeClass

Parameters:

obj -

Returns:

the LeoNativeClass representation

newInstance

public LeoObject newInstance(LeoObject classname,
                             LeoObject... params)

Reflectively create a new instance of a class.

Parameters:

classname -

params -

Returns:

Null if not found, the instance if instantiated

instrospectNames

public LeoArray instrospectNames(Object obj)
                          throws Exception

Retrieves all of the names of the supplied objects attributes.

Parameters:

obj -

Returns:

the list of names of attributes

Throws:

Exception

instrospect

public LeoArray instrospect(Object obj)
                     throws Exception

Introspects the supplied object.

Parameters:

obj - the object to inspect

Returns:

the list of attributes the object contains

Throws:

Exception

getStaticMethods

public LeoArray getStaticMethods(String className)
                          throws Exception

Retrieves the all static methods of the supplied class

Parameters:

className -

Returns:

a LeoArray or LeoNativeFunction's that match the supplied methodName

Throws:

Exception

getStaticMethods

public LeoArray getStaticMethods(Object instance)
                          throws Exception

Retrieves the all instance methods of the supplied class

Parameters:

instance -

Returns:

a LeoArray or LeoNativeFunction's that match the supplied methodName

Throws:

Exception

getStaticMethodsByName

public LeoArray getStaticMethodsByName(String className,
                                       String methodName)
                                throws Exception

Retrieves the static methods of the supplied class

Parameters:

className -

methodName -

Returns:

a LeoArray or LeoNativeFunction's that match the supplied methodName

Throws:

Exception

getInstanceMethodsByName

public LeoArray getInstanceMethodsByName(Object instance,
                                         String methodName)
                                  throws Exception

Retrieves the instance methods of the supplied object

Parameters:

instance -

methodName -

Returns:

a LeoArray or LeoNativeFunction's that match the supplied methodName

Throws:

Exception

_implements

public LeoObject _implements(String interfaceName,
                             LeoObject leoMethods)
                      throws Exception

Implements a Java Interface

Parameters:

interfaceName -

leoMethods -

Returns:

the wrapped interface

Throws:

Exception

clone

public final LeoObject clone(LeoObject obj)

Clones the object

Parameters:

obj -

Returns:

the cloned object

call

public final LeoObject call(LeoObject func,
                            LeoObject... params)

Calls the function and applies the array as function arguments to this function.

Parameters:

func -

params -

Returns:

the result from executing the function

getMetaclass

public LeoClass.Metaclass getMetaclass(LeoObject aClass)

Retrieves the LeoClass.Metaclass information from the supplied LeoClass

Parameters:

aClass -

Returns:

the LeoClass.Metaclass