Package org.jini.rio.resources.resource

Class ThreadPool

java.lang.Object

org.jini.rio.resources.resource.ResourcePool

org.jini.rio.resources.resource.ThreadPool

public class ThreadPool
extends ResourcePool

A resource pool to handle a pool of threads

Field Summary

Fields

Modifier and Type	Field	Description
protected ThreadGroup	group

Fields inherited from class org.jini.rio.resources.resource.ResourcePool

alloced, freed, identifier, max, min, numCreated

Constructor Summary

Constructors

Constructor	Description
ThreadPool(String identifier, int min, int max)	Create new named ThreadPool with a specified amount of minimum and maximum elements in the pool

Method Summary

Modifier and Type	Method	Description
protected Object	create()	method for creating a specific resource in the sub-class
void	destroy()	destroy all the threads spawned by this pool
protected void	dispose(Object obj)	Dispose of a resource
ThreadGroup	getThreadGroup()	get the thread group for this pool
static void	main(String[] args)	Unit Test
protected static int	nextId()
protected boolean	validate(Object obj)	Validate a resource

Methods inherited from class org.jini.rio.resources.resource.ResourcePool

allocResource, createResource, createResources, createResources, disposeResource, freeResource, get, get, getAllocedOfType, getAllocedSize, getFreedSize, getIdentifier, getInstance, getMax, getMin, getSize, register, register, register, release, remove, setIdentifier, setMax, setMin, toString

Methods inherited from class java.lang.Object

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

Field Details

group

protected ThreadGroup group

Constructor Details

ThreadPool

public ThreadPool(String identifier,
 int min,
 int max)

Create new named ThreadPool with a specified amount of minimum and maximum elements in the pool

Parameters:

identifier - the unique identifier for this instance

min - the minimum number of resources to create at startup

max - the maximum number of resources allowed

Method Details

nextId

protected static int nextId()

create

protected Object create()
                 throws ResourceUnavailableException

method for creating a specific resource in the sub-class

Specified by:

create in class ResourcePool

Returns:

the resource

Throws:

ResourceUnavailableException - if an error occured in creating the resource

dispose

protected void dispose(Object obj)

Dispose of a resource

Specified by:

dispose in class ResourcePool

Parameters:

obj - the resource to dispose

validate

protected boolean validate(Object obj)

Validate a resource

Specified by:

validate in class ResourcePool

Parameters:

obj - the resource to validate

Returns:

true if resource is still valid

getThreadGroup

public ThreadGroup getThreadGroup()

get the thread group for this pool

Returns:

the thread group for this pool

destroy

public void destroy()

destroy all the threads spawned by this pool

main

public static void main(String[] args)

Unit Test