Package com.prineside.luaj.lib.jse

Class LuajavaLib

java.lang.Object

com.prineside.luaj.Varargs

com.prineside.luaj.LuaValue

com.prineside.luaj.LuaFunction

com.prineside.luaj.lib.LibFunction

com.prineside.luaj.lib.VarArgFunction

com.prineside.luaj.lib.jse.LuajavaLib

All Implemented Interfaces:

com.esotericsoftware.kryo.KryoSerializable

Direct Known Subclasses:

ScriptManager.LuajavaFixedLib

public class LuajavaLib
extends VarArgFunction

Subclass of LibFunction which implements the features of the luajava package.

Luajava is an approach to mixing lua and java using simple functions that bind java classes and methods to lua dynamically. The API is documented on the luajava documentation pages.

Typically, this library is included as part of a call to

 
 Globals globals = JsePlatform.standardGlobals();
 System.out.println( globals.get("luajava").get("bindClass").call( LuaValue.valueOf("java.lang.System") ).invokeMethod("currentTimeMillis") );
  

To instantiate and use it directly, link it into your globals table via Globals.load(java.lang.String, java.lang.String) using code such as:

 
 Globals globals = new Globals();
 globals.load(new JseBaseLib());
 globals.load(new PackageLib());
 globals.load(new LuajavaLib());
 globals.load(
      "sys = luajava.bindClass('java.lang.System')\n"+
      "print ( sys:currentTimeMillis() )\n", "main.lua" ).call();
  

The luajava library is available and the luajava api's are simply invoked from lua. Because it makes extensive use of Java's reflection API, it is not available on JME, but can be used in Android applications.

This has been implemented to match as closely as possible the behavior in the corresponding library in C.

See Also:

• LibFunction
• LuaC
• CoerceJavaToLua
• CoerceLuaToJava
• http://www.keplerproject.org/luajava/manual.html#luareference

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	LuajavaLib.ProxyInvocationHandler

Nested classes/interfaces inherited from class com.prineside.luaj.LuaValue

LuaValue.NillableSerializer, LuaValue.None

Field Summary

Fields

Modifier and Type	Field	Description
Globals	globals

Fields inherited from class com.prineside.luaj.LuaFunction

s_metatable

Fields inherited from class com.prineside.luaj.LuaValue

ADD, CALL, CONCAT, DIV, EMPTYSTRING, ENV, EQ, FALSE, INDEX, LE, LEN, LT, METATABLE, MINUSONE, MOD, MODE, MUL, NEWINDEX, NIL, NILLABLE_SERIALIZER, NILS, NONE, NOVALS, ONE, POW, SUB, TBOOLEAN, TFUNCTION, TINT, TLIGHTUSERDATA, TNIL, TNONE, TNUMBER, TOSTRING, TRUE, TSTRING, TTABLE, TTHREAD, TUSERDATA, TVALUE, TYPE_NAMES, UNM, ZERO

Constructor Summary

Constructors

Constructor	Description
LuajavaLib()

Method Summary

Modifier and Type	Method	Description
Varargs	invoke(Varargs args)	Subclass responsibility.
void	read(com.esotericsoftware.kryo.Kryo kryo, com.esotericsoftware.kryo.io.Input input)
void	write(com.esotericsoftware.kryo.Kryo kryo, com.esotericsoftware.kryo.io.Output output)

Methods inherited from class com.prineside.luaj.lib.VarArgFunction

call, call, call, call, onInvoke

Methods inherited from class com.prineside.luaj.lib.LibFunction

call, tojstring

Methods inherited from class com.prineside.luaj.LuaFunction

checkfunction, classnamestub, getmetatable, isfunction, name, optfunction, strvalue, type, typename

Methods inherited from class com.prineside.luaj.LuaValue

add, add, add, and, arg, arg1, argerror, assert_, buffer, cachedDouble, cachedInt, cachedVarargsOf, cachedVarargsOf, cachedVarargsOf, cachedVarargsOf, cachedVarargsOf, cachedVarargsOf, call, checkboolean, checkclosure, checkdouble, checkglobals, checkint, checkinteger, checkjstring, checklong, checknotnil, checknumber, checknumber, checkstring, checktable, checkthread, checkuserdata, checkuserdata, comparemt, concat, concat, concatmt, concatTo, concatTo, concatTo, div, div, div, divInto, eq, eq_b, eqmtcall, equals, error, get, get, get, gt, gt, gt, gt_b, gt_b, gt_b, gteq, gteq, gteq, gteq_b, gteq_b, gteq_b, inext, initupvalue1, invoke, invoke, invoke, invoke, invoke, invokemethod, invokemethod, invokemethod, invokemethod, invokemethod, invokemethod, isboolean, isclosure, isint, isinttype, islong, isnil, isnumber, isstring, istable, isthread, isuserdata, isuserdata, isvalidkey, len, length, listOf, listOf, load, lt, lt, lt, lt_b, lt_b, lt_b, lteq, lteq, lteq, lteq_b, lteq_b, lteq_b, metatag, method, method, method, method, method, method, mod, mod, mod, modFrom, mul, mul, mul, narg, neg, neq, neq_b, next, not, optboolean, optclosure, optdouble, optint, optinteger, optjstring, optlong, optnumber, optstring, opttable, optthread, optuserdata, optuserdata, optvalue, or, pow, pow, pow, powWith, powWith, presize, raweq, raweq, raweq, raweq, raweq, rawget, rawget, rawget, rawlen, rawset, rawset, rawset, rawset, rawset, rawset, rawset, rawsetlist, set, set, set, set, set, set, set, setmetatable, strcmp, strcmp, strongvalue, sub, sub, sub, subargs, subFrom, subFrom, tableOf, tableOf, tableOf, tableOf, tableOf, tableOf, tailcallOf, testfor_b, toboolean, tobyte, tochar, todouble, tofloat, toint, tolong, tonumber, toshort, tostring, toString, touserdata, touserdata, userdataOf, userdataOf, valueOf, valueOf, valueOf, valueOf, valueOf, valueOf, varargsOf, varargsOf, varargsOf, varargsOf, varargsOf, varargsOf

Methods inherited from class com.prineside.luaj.Varargs

argcheck, checkboolean, checkclosure, checkdouble, checkfunction, checkint, checkinteger, checkjstring, checklong, checknotnil, checknumber, checkstring, checktable, checkthread, checkuserdata, checkuserdata, checkvalue, dealias, eval, isfunction, isnil, isnoneornil, isnumber, isstring, istable, isTailcall, isthread, isuserdata, isvalue, optboolean, optclosure, optdouble, optfunction, optint, optinteger, optjstring, optlong, optnumber, optstring, opttable, optthread, optuserdata, optuserdata, optvalue, toboolean, tobyte, tochar, todouble, tofloat, toint, tojstring, tolong, toshort, touserdata, touserdata, type

Methods inherited from class java.lang.Object

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

Field Details

globals

public Globals globals

Constructor Details

LuajavaLib

public LuajavaLib()

Method Details

write

public void write(com.esotericsoftware.kryo.Kryo kryo,
 com.esotericsoftware.kryo.io.Output output)

Specified by:

write in interface com.esotericsoftware.kryo.KryoSerializable

Overrides:

write in class LibFunction

read

public void read(com.esotericsoftware.kryo.Kryo kryo,
 com.esotericsoftware.kryo.io.Input input)

Specified by:

read in interface com.esotericsoftware.kryo.KryoSerializable

Overrides:

read in class LibFunction

invoke

public Varargs invoke(Varargs args)

Description copied from class: VarArgFunction

Subclass responsibility. May not have expected behavior for tail calls. Should not be used if: - function has a possibility of returning a TailcallVarargs

Overrides:

invoke in class VarArgFunction

Parameters:

args - the arguments to the function call.

Returns:

All return values as a Varargs instance.

See Also:

• LuaValue.varargsOf(LuaValue[])
• LuaValue.call(LuaValue)
• LuaValue.invoke()
• LuaValue.invoke(LuaValue,Varargs)
• LuaValue.invokemethod(String,Varargs)
• LuaValue.invokemethod(LuaValue,Varargs)