org.keplerproject.luajava
Class LuaObject

java.lang.Object
  org.keplerproject.luajava.LuaObject

public class LuaObject

extends java.lang.Object

This class represents a Lua object of any type. A LuaObject is constructed by a LuaState object using one of the four methods:

• LuaState.getLuaObject(String globalName)
• LuaState.getLuaObject(LuaObject parent, String name)
• LuaState.getLuaObject(LuaObject parent, Number name)
• LuaState.getLuaObject(LuaObject parent, LuaObject name)
• LuaState.getLuaObject(int index)

The LuaObject will represent only the object itself, not a variable or a stack index, so when you change a string, remember that strings are immutable objects in Lua, and the LuaObject you have will represent the old one.

Proxies

LuaJava allows you to implement a class in Lua, like said before. If you want to create this proxy from Java, you should have a LuaObject representing the table that has the functions that implement the interface. From this LuaObject you can call the createProxy(String implements). This method receives the string with the name of the interfaces implemented by the object separated by comma.

Method Summary

java.lang.Object	call(java.lang.Object[] args) Calls the object represented by this using Lua function pcall.
java.lang.Object[]	call(java.lang.Object[] args, int nres) Calls the object represented by this using Lua function pcall.
java.lang.Object	createProxy(java.lang.String implem) Function that creates a java proxy to the object represented by this
boolean	getBoolean()
LuaObject	getField(java.lang.String field) If this is a table or userdata tries to set a field value.
LuaState	getLuaState() Gets the Object's State
double	getNumber()
java.lang.Object	getObject()
java.lang.String	getString()
boolean	isBoolean()
boolean	isFunction()
boolean	isJavaFunction()
boolean	isJavaObject()
boolean	isNil()
boolean	isNumber()
boolean	isString()
boolean	isTable()
boolean	isUserdata()
void	push() Pushes the object represented by this into L's stack
java.lang.String	toString()
int	type()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Detail

getLuaState

public LuaState getLuaState()

Gets the Object's State

push

public void push()

Pushes the object represented by this into L's stack

isNil

public boolean isNil()

isBoolean

public boolean isBoolean()

isNumber

public boolean isNumber()

isString

public boolean isString()

isFunction

public boolean isFunction()

isJavaObject

public boolean isJavaObject()

isJavaFunction

public boolean isJavaFunction()

isTable

public boolean isTable()

isUserdata

public boolean isUserdata()

type

public int type()

getBoolean

public boolean getBoolean()

getNumber

public double getNumber()

getString

public java.lang.String getString()

getObject

public java.lang.Object getObject()
                           throws LuaException

Throws:

LuaException

getField

public LuaObject getField(java.lang.String field)
                   throws LuaException

If this is a table or userdata tries to set a field value.

Throws:

LuaException

call

public java.lang.Object[] call(java.lang.Object[] args,
                               int nres)
                        throws LuaException

Calls the object represented by this using Lua function pcall.

Parameters:

args - - Call arguments

nres - - Number of objects returned

Returns:

Object[] - Returned Objects

Throws:

LuaException

call

public java.lang.Object call(java.lang.Object[] args)
                      throws LuaException

Calls the object represented by this using Lua function pcall. Returns 1 object

Parameters:

args - - Call arguments

Returns:

Object - Returned Object

Throws:

LuaException

toString

public java.lang.String toString()

createProxy

public java.lang.Object createProxy(java.lang.String implem)
                             throws java.lang.ClassNotFoundException,
                                    LuaException

Function that creates a java proxy to the object represented by this

Parameters:

implem - Interfaces that are implemented, separated by ,

Throws:

java.lang.ClassNotFoundException

LuaException