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Java Source Code / Java Documentation » Development » Javolution » javolution.context 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   javolution.context.Context
      javolution.context.LocalContext

LocalContext
public class LocalContext extends Context (Code)

This class represents a context to define locally scoped environment settings. This settings are held by LocalContext.Reference and typically wrapped within a static method:[code] LocalContext.enter(); try { ModuloInteger.setModulus(m); // Performs integer operations modulo m. Length.showAs(NonSI.INCH); // Shows length in inches. RelativisticModel.select(); // Uses relativistic physical model. ... // Operations performed using local settings. } finally { LocalContext.exit(); // Reverts to previous settings. }[/code]

Calls to locally scoped methods should be performed either at start-up (global setting) or within a local context (to avoid impacting other threads).

As for any context, local context settings are inherited during ConcurrentContext concurrent executions.


author:
   Jean-Marie Dautelle
version:
   3.6, September 24, 2005
See Also:   javolution.util.LocalMap

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

Field Summary
final  FastMap_references
     Holds any reference associated to this context (reference to referent mapping).

Constructor Summary
public  LocalContext()
     Default constructor.

Method Summary
public static  LocalContextenter()
     Enters a LocalContext possibly recycled.
protected  voidenterAction()
    
public static  Contextexit()
     Exits the current local context.
protected  voidexitAction()
    

Field Detail
_references
final FastMap _references(Code)
Holds any reference associated to this context (reference to referent mapping).




Constructor Detail
LocalContext
public LocalContext()(Code)
Default constructor.




Method Detail
enter
public static LocalContext enter()(Code)
Enters a LocalContext possibly recycled. the local context being entered.



enterAction
protected void enterAction()(Code)



exit
public static Context exit()(Code)
Exits the current local context. the local context being exited.
throws:
  ClassCastException - if the context is not a local context.



exitAction
protected void exitAction()(Code)



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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