Package org.jruby.runtime.ivars

Class StampedVariableAccessor

java.lang.Object

org.jruby.runtime.ivars.VariableAccessor

org.jruby.runtime.ivars.StampedVariableAccessor

public class StampedVariableAccessor
extends VariableAccessor

A variable accessor that uses a stamped volatile int and Unsafe methods to ensure thread-friendly table updating.

Field Summary

Fields inherited from class org.jruby.runtime.ivars.VariableAccessor

classId, DUMMY_ACCESSOR, index, name, realClass

Constructor Summary

Constructors

Constructor	Description
StampedVariableAccessor(RubyClass realClass, String name, int index, int classId)	Construct a new StampedVariableAccessor for the given "real" class, variable name, variable index, and class ID.

Method Summary

Modifier and Type	Method	Description
void	set(Object object, Object value)	Set this variable into the given object using Unsafe to ensure safe updating of the variable table.
static void	setVariableChecked(RubyBasicObject self, RubyClass realClass, int index, Object value)	Set the given variable index into the specified object.

Methods inherited from class org.jruby.runtime.ivars.VariableAccessor

get, getClassId, getIndex, getName, getOrNil, getOrUndefined, getVariable, toString, verify

Methods inherited from class java.lang.Object

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

Constructor Details

StampedVariableAccessor

public StampedVariableAccessor(RubyClass realClass,
 String name,
 int index,
 int classId)

Construct a new StampedVariableAccessor for the given "real" class, variable name, variable index, and class ID.

Parameters:

realClass - the "real" class

name - the variable's name

index - the variable's index

classId - the class's ID

Method Details

set

public void set(Object object,
 Object value)

Set this variable into the given object using Unsafe to ensure safe updating of the variable table.

Overrides:

set in class VariableAccessor

Parameters:

object - the object into which to set this variable

value - the variable's value

setVariableChecked

public static void setVariableChecked(RubyBasicObject self,
 RubyClass realClass,
 int index,
 Object value)

Set the given variable index into the specified object. The "real" class and index are pass in to provide functional access. This version checks if self has been frozen before proceeding to set the variable.

Parameters:

self - the object into which to set the variable

realClass - the "real" class for the object

index - the index of the variable

value - the variable's value