Package com.prineside.luaj.lib.jse

Class JavaClass

java.lang.Object

com.prineside.luaj.Varargs

com.prineside.luaj.LuaValue

com.prineside.luaj.LuaUserdata

com.prineside.luaj.lib.jse.JavaInstance

com.prineside.luaj.lib.jse.JavaClass

All Implemented Interfaces:

KryoSerializable, CoerceJavaToLua.Coercion

public final class JavaClass
extends JavaInstance
implements CoerceJavaToLua.Coercion

LuaValue that represents a Java class.

Will respond to get() and set() by returning field values, or java methods.

This class is not used directly. It is returned by calls to CoerceJavaToLua.coerce(Object) when a Class is supplied.

See Also:

• CoerceJavaToLua
• CoerceLuaToJava

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	JavaClass._findMethod
static final class	JavaClass.LuaMethodHandle	A Java method as an object.
static class	JavaClass.NamedClassEntry
static class	JavaClass.Serializer

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

LuaValue.NillableSerializer, LuaValue.None

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

Varargs.ArrayVarargs

Field Summary

Fields inherited from class com.prineside.luaj.LuaUserdata

m_instance, m_metatable

Fields inherited from class com.prineside.luaj.LuaValue

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

Method Summary

Modifier and Type	Method	Description
LuaValue	call()	Call this with 0 arguments, including metatag processing, and return only the first return value.
LuaValue	call(LuaValue arg)	Call this with 1 argument, including metatag processing, and return only the first return value.
LuaValue	call(LuaValue arg1, LuaValue arg2)	Call this with 2 arguments, including metatag processing, and return only the first return value.
LuaValue	call(LuaValue arg1, LuaValue arg2, LuaValue arg3)	Call this with 3 arguments, including metatag processing, and return only the first return value.
LuaValue	coerce(Object javaValue)
static JavaClass	forClass(Class<?> c)
LuaValue	get(LuaValue key)	Get a value in a table including metatag processing using LuaValue.INDEX.
ObjectMap<LuaString,Field>	getClassFields()
Map<LuaString,LuaValue>	getClassMethods()
LuaValue	getConstructor()
ObjectMap<LuaString,Field>	getInstanceFields()
Map<LuaString,LuaValue>	getInstanceMethods()
JavaClass.NamedClassEntry	getObjectFieldOrMethod(LuaValue key)
Varargs	invoke(Varargs args)	Should not return args (must be new varargs)
void	set(LuaValue key, LuaValue value)	Set a value in a table without metatag processing using LuaValue.NEWINDEX.

Methods inherited from class com.prineside.luaj.lib.jse.JavaInstance

getJavaClass, len, read, write

Methods inherited from class com.prineside.luaj.LuaUserdata

checkuserdata, checkuserdata, eq, eq_b, eqmt, equals, getmetatable, hashCode, isuserdata, isuserdata, optuserdata, optuserdata, raweq, raweq, setmetatable, tojstring, touserdata, touserdata, type, typename, userdata

Methods inherited from class com.prineside.luaj.LuaValue

add, add, add, and, arg, arg1, argerror, assert_, buffer, call, cBool, cDouble, cFloat, checkboolean, checkclosure, checkdouble, checkfunction, checkglobals, checkint, checkjstring, checklong, checknotnil, checknumber, checknumber, checkstring, checktable, cInt, cNcDouble, cNcFloat, cNcInt, cObject, comparemt, concat, concat, concatmt, concatTo, concatTo, concatTo, cRegObject, div, div, div, divInto, eqmtcall, error, 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, invokemethod, invokemethod, invokemethod, invokemethod, isboolean, isclosure, isfunction, isint, isinttype, islong, isnil, isnumber, isRegObject, isstring, istable, isvalidkey, 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, onInvoke, optboolean, optclosure, optdouble, optfunction, optint, optjstring, optlong, optnumber, optstring, opttable, optvalue, or, pow, pow, pow, powWith, powWith, presize, raweq, raweq, raweq, rawget, rawget, rawget, rawlen, rawset, rawset, rawset, rawset, rawset, rawset, rawset, rawsetlist, set, set, set, set, set, set, strcmp, strcmp, strongvalue, strvalue, 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, 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, checkjstring, checklong, checknotnil, checknumber, checkstring, checktable, checkuserdata, checkuserdata, checkvalue, dealias, eval, isfunction, isnil, isnoneornil, isnumber, isstring, istable, isTailcall, isuserdata, isvalue, optboolean, optclosure, optdouble, optfunction, optint, optjstring, optlong, optnumber, optstring, opttable, optuserdata, optuserdata, optvalue, toboolean, tobyte, tochar, todouble, tofloat, toint, tojstring, tolong, toshort, touserdata, touserdata, type

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Method Details

forClass

public static JavaClass forClass(Class<?> c)

call

public LuaValue call()

Description copied from class: LuaValue

Call this with 0 arguments, including metatag processing, and return only the first return value.

If this is a LuaFunction, call it, and return only its first return value, dropping any others. Otherwise, look for the LuaValue.CALL metatag and call that.

If the return value is a Varargs, only the 1st value will be returned. To get multiple values, use LuaValue.invoke() instead.

To call this as a method call, use LuaValue.method(LuaValue) instead.

Overrides:

call in class LuaValue

Returns:

First return value (this()), or LuaValue.NIL if there were none.

See Also:

• LuaValue.call(LuaValue)
• LuaValue.call(LuaValue,LuaValue)
• LuaValue.call(LuaValue, LuaValue, LuaValue)
• LuaValue.invoke()
• LuaValue.method(String)
• LuaValue.method(LuaValue)

call

public LuaValue call(LuaValue arg)

Description copied from class: LuaValue

Call this with 1 argument, including metatag processing, and return only the first return value.

If this is a LuaFunction, call it, and return only its first return value, dropping any others. Otherwise, look for the LuaValue.CALL metatag and call that.

If the return value is a Varargs, only the 1st value will be returned. To get multiple values, use LuaValue.invoke() instead.

To call this as a method call, use LuaValue.method(LuaValue) instead.

Overrides:

call in class LuaValue

Parameters:

arg - First argument to supply to the called function

Returns:

First return value (this(arg)), or LuaValue.NIL if there were none.

See Also:

• LuaValue.call()
• LuaValue.call(LuaValue,LuaValue)
• LuaValue.call(LuaValue, LuaValue, LuaValue)
• LuaValue.invoke(Varargs)
• LuaValue.method(String,LuaValue)
• LuaValue.method(LuaValue,LuaValue)

call

public LuaValue call(LuaValue arg1,
 LuaValue arg2)

Description copied from class: LuaValue

Call this with 2 arguments, including metatag processing, and return only the first return value.

If this is a LuaFunction, call it, and return only its first return value, dropping any others. Otherwise, look for the LuaValue.CALL metatag and call that.

If the return value is a Varargs, only the 1st value will be returned. To get multiple values, use LuaValue.invoke() instead.

To call this as a method call, use LuaValue.method(LuaValue) instead.

Overrides:

call in class LuaValue

Parameters:

arg1 - First argument to supply to the called function

arg2 - Second argument to supply to the called function

Returns:

First return value (this(arg1,arg2)), or LuaValue.NIL if there were none.

See Also:

• LuaValue.call()
• LuaValue.call(LuaValue)
• LuaValue.call(LuaValue, LuaValue, LuaValue)
• LuaValue.invoke(LuaValue, Varargs)
• LuaValue.method(String,LuaValue,LuaValue)
• LuaValue.method(LuaValue,LuaValue,LuaValue)

call

public LuaValue call(LuaValue arg1,
 LuaValue arg2,
 LuaValue arg3)

Description copied from class: LuaValue

Call this with 3 arguments, including metatag processing, and return only the first return value.

If this is a LuaFunction, call it, and return only its first return value, dropping any others. Otherwise, look for the LuaValue.CALL metatag and call that.

If the return value is a Varargs, only the 1st value will be returned. To get multiple values, use LuaValue.invoke() instead.

To call this as a method call, use LuaValue.method(LuaValue) instead.

Overrides:

call in class LuaValue

Parameters:

arg1 - First argument to supply to the called function

arg2 - Second argument to supply to the called function

arg3 - Second argument to supply to the called function

Returns:

First return value (this(arg1,arg2,arg3)), or LuaValue.NIL if there were none.

See Also:

• LuaValue.call()
• LuaValue.call(LuaValue)
• LuaValue.call(LuaValue, LuaValue)
• LuaValue.invoke(LuaValue, LuaValue, Varargs)
• LuaValue.invokemethod(LuaValue,Varargs)

get

public LuaValue get(LuaValue key)

Description copied from class: LuaValue

Get a value in a table including metatag processing using LuaValue.INDEX.

Overrides:

get in class JavaInstance

Parameters:

key - the key to look up, must not be LuaValue.NIL or null

Returns:

LuaValue for that key, or LuaValue.NIL if not found and no metatag

See Also:

• LuaValue.get(int)
• LuaValue.get(String)
• LuaValue.rawget(LuaValue)

set

public void set(LuaValue key,
 LuaValue value)

Description copied from class: LuaValue

Set a value in a table without metatag processing using LuaValue.NEWINDEX.

Overrides:

set in class JavaInstance

Parameters:

key - the key to use, must not be LuaValue.NIL or null

value - the value to use, can be LuaValue.NIL, must not be null

invoke

public Varargs invoke(Varargs args)

Description copied from class: LuaValue

Should not return args (must be new varargs)

Overrides:

invoke in class LuaValue

coerce

public LuaValue coerce(Object javaValue)

Specified by:

coerce in interface CoerceJavaToLua.Coercion

getInstanceFields

public ObjectMap<LuaString,Field> getInstanceFields()

getClassFields

public ObjectMap<LuaString,Field> getClassFields()

getObjectFieldOrMethod

public JavaClass.NamedClassEntry getObjectFieldOrMethod(LuaValue key)

getInstanceMethods

public Map<LuaString,LuaValue> getInstanceMethods()

getClassMethods

public Map<LuaString,LuaValue> getClassMethods()

getConstructor

public LuaValue getConstructor()

Returns:

default constructor (Class.new) if class has one. Preferred way of constructing an object is through .new methods