Modifier and Type	Class and Description
private class	ObjectSpace.GroupSweeper
private static class	ObjectSpace.IdReference
private static class	ObjectSpace.ObjectGroup
private class	ObjectSpace.WeakReferenceListNode<T>

Modifier and Type	Field and Description
private final ThreadLocal<Reference<ObjectSpace.ObjectGroup>>	currentObjectGroup
private final ReferenceQueue<T>	deadIdentityReferences
private final ReferenceQueue<Object>	deadReferences
private Reference<ObjectSpace.GroupSweeper>	groupSweeperReference
private final Map<Long, ObjectSpace.IdReference>	identities
private final Map<IRubyObject, Long>	identitiesByObject
private static final AtomicLong	maxId
private final ReferenceQueue<ObjectSpace.ObjectGroup>	objectGroupReferenceQueue
private ObjectSpace.WeakReferenceListNode<T>	top

Access	Constructor and Description
public	ObjectSpace()

Method Summary

Modifier and Type	Method and Description
public void	add(IRubyObject object)
public void	addFinalizer(IRubyObject object, IRubyObject proc) Deprecated
public IRubyObject	addFinalizer(ThreadContext context, IRubyObject object, IRubyObject proc)
private synchronized void	addIndividualWeakReference(IRubyObject object)
private synchronized ObjectSpace.ObjectGroup	addObjectGroup()
public static long	calculateObjectId(Object object)
private void	cleanIdentities()
private void	cleanup(ReferenceQueue<?> referenceQueue)
public long	createAndRegisterObjectId(IRubyObject rubyObject)
private long	createId(IRubyObject object)
private ObjectSpace.ObjectGroup	getObjectGroup()
public IRubyObject	id2ref(long id)
public long	idOf(IRubyObject rubyObject) Deprecated
public synchronized Iterator<E>	iterator(RubyModule rubyClass)
private synchronized void	registerGroupSweeper()
public void	registerObjectId(long id, IRubyObject object)
public void	removeFinalizers(long id)
private synchronized void	splitObjectGroups()

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

currentObjectGroup	back to summary
private final ThreadLocal<Reference<ObjectSpace.ObjectGroup>> currentObjectGroup

deadIdentityReferences	back to summary
private final ReferenceQueue<T> deadIdentityReferences

deadReferences	back to summary
private final ReferenceQueue<Object> deadReferences

groupSweeperReference	back to summary
private Reference<ObjectSpace.GroupSweeper> groupSweeperReference

identities	back to summary
private final Map<Long, ObjectSpace.IdReference> identities

identitiesByObject	back to summary
private final Map<IRubyObject, Long> identitiesByObject

maxId	back to summary
private static final AtomicLong maxId

objectGroupReferenceQueue	back to summary
private final ReferenceQueue<ObjectSpace.ObjectGroup> objectGroupReferenceQueue

top	back to summary
private ObjectSpace.WeakReferenceListNode<T> top

ObjectSpace	back to summary
public ObjectSpace()

Method Detail

add	back to summary
public void add(IRubyObject object)

addFinalizer	back to summary
public void addFinalizer(IRubyObject object, IRubyObject proc) Deprecated Annotations @Deprecated

addFinalizer	back to summary
public IRubyObject addFinalizer(ThreadContext context, IRubyObject object, IRubyObject proc)

addIndividualWeakReference	back to summary
private synchronized void addIndividualWeakReference(IRubyObject object)

addObjectGroup	back to summary
private synchronized ObjectSpace.ObjectGroup addObjectGroup()

calculateObjectId	back to summary
public static long calculateObjectId(Object object)

cleanIdentities	back to summary
private void cleanIdentities()

cleanup	back to summary
private void cleanup(ReferenceQueue<?> referenceQueue)

createAndRegisterObjectId	back to summary
public long createAndRegisterObjectId(IRubyObject rubyObject)

createId	back to summary
private long createId(IRubyObject object)

getObjectGroup	back to summary
private ObjectSpace.ObjectGroup getObjectGroup()

id2ref	back to summary
public IRubyObject id2ref(long id)

idOf	back to summary
public long idOf(IRubyObject rubyObject) Deprecated Annotations @Deprecated

iterator	back to summary
public synchronized Iterator<E> iterator(RubyModule rubyClass)

registerGroupSweeper	back to summary
private synchronized void registerGroupSweeper()

registerObjectId	back to summary
public void registerObjectId(long id, IRubyObject object)

removeFinalizers	back to summary
public void removeFinalizers(long id)

splitObjectGroups	back to summary
private synchronized void splitObjectGroups()

org.jruby.runtime back to summary

private final Class ObjectSpace.GroupSweeper

Class Inheritance

extends Object

java.lang.Object
org.jruby.runtime.ObjectSpace.GroupSweeper

Constructor Summary

Access	Constructor and Description
private	GroupSweeper()

Method Summary

Modifier and Type	Method and Description
protected void	finalize() Overrides java.lang.Object.finalize. Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.

Inherited from java.lang.Object:: clone equals getClass hashCode notify notifyAll toString wait wait wait

Constructor Detail

GroupSweeper	back to summary
private GroupSweeper()

Method Detail

finalize back to summary

finalize	back to summary
protected void finalize() throws Throwable Overrides java.lang.Object.finalize. Doc from java.lang.Object.finalize. Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. A subclass overrides the `finalize` method to dispose of system resources or to perform other cleanup. When running in a Java virtual machine in which finalization has been disabled or removed, the garbage collector will never call `finalize()`. In a Java virtual machine in which finalization is enabled, the garbage collector might call `finalize` only after an indefinite delay. The general contract of `finalize` is that it is invoked if and when the Java virtual machine has determined that there is no longer any means by which this object can be accessed by any thread that has not yet died, except as a result of an action taken by the finalization of some other object or class which is ready to be finalized. The `finalize` method may take any action, including making this object available again to other threads; the usual purpose of `finalize`, however, is to perform cleanup actions before the object is irrevocably discarded. For example, the finalize method for an object that represents an input/output connection might perform explicit I/O transactions to break the connection before the object is permanently discarded. The `finalize` method of class `Object` performs no special action; it simply returns normally. Subclasses of `Object` may override this definition. The Java programming language does not guarantee which thread will invoke the `finalize` method for any given object. It is guaranteed, however, that the thread that invokes finalize will not be holding any user-visible synchronization locks when finalize is invoked. If an uncaught exception is thrown by the finalize method, the exception is ignored and finalization of that object terminates. After the `finalize` method has been invoked for an object, no further action is taken until the Java virtual machine has again determined that there is no longer any means by which this object can be accessed by any thread that has not yet died, including possible actions by other objects or classes which are ready to be finalized, at which point the object may be discarded. The `finalize` method is never invoked more than once by a Java virtual machine for any given object. Any exception thrown by the `finalize` method causes the finalization of this object to be halted, but is otherwise ignored. Annotations @Override Exceptions Throwable: the `Exception` raised by this method

protected void finalize() throws Throwable

Overrides java.lang.Object.finalize.

Doc from java.lang.Object.finalize.

Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. A subclass overrides the finalize method to dispose of system resources or to perform other cleanup.

When running in a Java virtual machine in which finalization has been disabled or removed, the garbage collector will never call finalize(). In a Java virtual machine in which finalization is enabled, the garbage collector might call finalize only after an indefinite delay.

The general contract of finalize is that it is invoked if and when the Java virtual machine has determined that there is no longer any means by which this object can be accessed by any thread that has not yet died, except as a result of an action taken by the finalization of some other object or class which is ready to be finalized. The finalize method may take any action, including making this object available again to other threads; the usual purpose of finalize, however, is to perform cleanup actions before the object is irrevocably discarded. For example, the finalize method for an object that represents an input/output connection might perform explicit I/O transactions to break the connection before the object is permanently discarded.

The finalize method of class Object performs no special action; it simply returns normally. Subclasses of Object may override this definition.

The Java programming language does not guarantee which thread will invoke the finalize method for any given object. It is guaranteed, however, that the thread that invokes finalize will not be holding any user-visible synchronization locks when finalize is invoked. If an uncaught exception is thrown by the finalize method, the exception is ignored and finalization of that object terminates.

After the finalize method has been invoked for an object, no further action is taken until the Java virtual machine has again determined that there is no longer any means by which this object can be accessed by any thread that has not yet died, including possible actions by other objects or classes which are ready to be finalized, at which point the object may be discarded.

The finalize method is never invoked more than once by a Java virtual machine for any given object.

Any exception thrown by the finalize method causes the finalization of this object to be halted, but is otherwise ignored.

Annotations

@Override

Exceptions

Throwable:: the Exception raised by this method

org.jruby.runtime back to summary

private Class ObjectSpace.IdReference

Class Inheritance

extends WeakReference<IRubyObject>

java.lang.Object
java.lang.ref.Reference
java.lang.ref.WeakReference
org.jruby.runtime.ObjectSpace.IdReference

Field Summary

Modifier and Type	Field and Description
pack-priv final long	id

Constructor Summary

Access	Constructor and Description
pack-priv	IdReference(IRubyObject object, long id, ReferenceQueue<T> queue)

Field Detail

id	back to summary
pack-priv final long id

Constructor Detail

IdReference	back to summary
pack-priv IdReference(IRubyObject object, long id, ReferenceQueue<T> queue)

org.jruby.runtime back to summary

private final Class ObjectSpace.ObjectGroup

Class Inheritance

extends AbstractList<IRubyObject>

java.lang.Object
java.util.AbstractCollection
java.util.AbstractList
org.jruby.runtime.ObjectSpace.ObjectGroup

Field Summary

Modifier and Type	Field and Description
private static final int	MAX_OBJECTS_PER_GROUP
private int	nextIndex
private final AtomicReferenceArray<IRubyObject>	objects

Inherited from java.util.AbstractList:: modCount

Constructor Summary

Access	Constructor and Description
private	ObjectGroup()

Method Summary

Modifier and Type	Method and Description
public boolean	add(IRubyObject element to be appended to this list obj) Overrides java.util.AbstractList.add. Implements java.util.List.add, java.util.Collection.add. Appends the specified element to the end of this list (optional operation).
public IRubyObject	get(int index of the element to return index) Implements abstract java.util.AbstractList.get. Implements java.util.List.get. Returns the element at the specified position in this list.
private boolean	isFull()
public IRubyObject	set(int index of the element to replace index, IRubyObject element to be stored at the specified position element) Overrides java.util.AbstractList.set. Implements java.util.List.set. Replaces the element at the specified position in this list with the specified element (optional operation).
public int	size() Implements abstract java.util.AbstractCollection.size. Implements java.util.List.size, java.util.Collection.size. Returns the number of elements in this list.

Inherited from java.util.AbstractList:: add addAll clear equals hashCode indexOf iterator lastIndexOf listIterator listIterator remove removeRange subList

Field Detail

MAX_OBJECTS_PER_GROUP	back to summary
private static final int MAX_OBJECTS_PER_GROUP

nextIndex	back to summary
private int nextIndex

objects	back to summary
private final AtomicReferenceArray<IRubyObject> objects

Constructor Detail

ObjectGroup	back to summary
private ObjectGroup()

Method Detail

add back to summary

add	back to summary
public boolean add(IRubyObject obj) Overrides java.util.AbstractList.add. Implements java.util.List.add, java.util.Collection.add. Doc from java.util.AbstractList.add. Appends the specified element to the end of this list (optional operation). Lists that support this operation may place limitations on what elements may be added to this list. In particular, some lists will refuse to add null elements, and others will impose restrictions on the type of elements that may be added. List classes should clearly specify in their documentation any restrictions on what elements may be added. Parameters obj:IRubyObject element to be appended to this list Returns:boolean `true` (as specified by `Collection#add`)

public boolean add(IRubyObject obj)

Overrides java.util.AbstractList.add.

Implements java.util.List.add, java.util.Collection.add.

Doc from java.util.AbstractList.add.

Appends the specified element to the end of this list (optional operation).

Lists that support this operation may place limitations on what elements may be added to this list. In particular, some lists will refuse to add null elements, and others will impose restrictions on the type of elements that may be added. List classes should clearly specify in their documentation any restrictions on what elements may be added.

Parameters

obj:IRubyObject: element to be appended to this list

Returns:boolean

true (as specified by Collection#add)

get	back to summary
public IRubyObject get(int index) Implements abstract java.util.AbstractList.get. Implements java.util.List.get. Doc from java.util.AbstractList.get. Returns the element at the specified position in this list. Parameters index:int Doc from java.util.List.get. index of the element to return Returns:IRubyObject Doc from java.util.List.get. the element at the specified position in this list Annotations @Override

get

back to summary

public IRubyObject get(int index)

Implements abstract java.util.AbstractList.get.

Implements java.util.List.get.

Doc from java.util.AbstractList.get.

Returns the element at the specified position in this list.

Parameters

index:int

Doc from java.util.List.get.

index of the element to return

Returns:IRubyObject