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Java Source Code / Java Documentation » Science » javolution 5.2 » javolution.context

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

javolution.context .Context

javolution.context .AllocatorContext

All known Subclasses:   javolution.context .StackContext,  javolution.context .HeapContext,  javolution.context .ImmortalContext,
AllocatorContext
abstract public class AllocatorContext extends Context (Code)

This class represents an allocator context; it defines the the allocation policy of ObjectFactory products.

The AllocatorContext.DEFAULT default implementation is an instance of HeapContext context.

Specializations may allocate from local stacks ( StackContext ), specific memory areas (e.g. ImmortalContext ), aging pools (where objects sufficiently old are recycled), switchable spaces (objects from a particular frame are recycled when buffers are swapped), etc.

author:
   Jean-Marie Dautelle
version:
   5.2, August 19, 2007

Inner Class :public static class Reference implements javolution.lang.Reference

Field Summary
final public static Configurable DEFAULT
     Holds the default implementation ( HeapContext instance).

Constructor Summary
protected AllocatorContext()
     Default constructor.

Method Summary
abstract protected void deactivate()
     Deactivates the Allocator allocators belonging to this context for the current thread.
abstract protected Allocator getAllocator(ObjectFactory factory)
     Returns the allocator for the specified factory in this context.
Parameters:
  factory - the factory for which the allocator is returned.
public static Context getCurrent()
     Returns the current allocator context.
public static AllocatorContext getDefault()
     Returns the default instance ( AllocatorContext.DEFAULT implementation).

Field Detail
DEFAULT
final public static Configurable DEFAULT(Code)
Holds the default implementation ( HeapContext instance).

Constructor Detail
AllocatorContext
protected AllocatorContext()(Code)
Default constructor.

Method Detail
deactivate
abstract protected void deactivate()(Code)
Deactivates the Allocator allocators belonging to this context for the current thread. This method is typically called when an inner allocator context is entered by the current thread, when exiting an allocator context or when a concurrent executor has completed its task within this allocator context. Deactivated allocators have no Allocator.user user (null).

getAllocator
abstract protected Allocator getAllocator(ObjectFactory factory)(Code)
Returns the allocator for the specified factory in this context.
Parameters:
  factory - the factory for which the allocator is returned. the allocator producing instances of the specified factory.

getCurrent
public static Context getCurrent()(Code)
Returns the current allocator context. If the current thread has not entered an allocator context (e.g. new thread) then AllocatorContext.getDefault() is returned. the current allocator context.

getDefault
public static AllocatorContext getDefault()(Code)
Returns the default instance ( AllocatorContext.DEFAULT implementation). the default instance.

Fields inherited from javolution.context.Context
final public static Context ROOT(Code)(Java Doc)

Methods inherited from javolution.context.Context
final public static Context enter(Context context)(Code)(Java Doc)
final public static Context enter(Class contextType)(Code)(Java Doc)
abstract protected void enterAction()(Code)(Java Doc)
public static Context exit()(Code)(Java Doc)
final public static void exit(Context ctx)(Code)(Java Doc)
abstract protected void exitAction()(Code)(Java Doc)
final AllocatorContext getAllocatorContext()(Code)(Java Doc)
public static Context getCurrent()(Code)(Java Doc)
final public Context getOuter()(Code)(Java Doc)
final public Thread getOwner()(Code)(Java Doc)
protected static void setCurrent(ConcurrentContext context)(Code)(Java Doc)
public String toString()(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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