com.github.robtimus.pool

Class ObjectWrapper<T>

java.lang.Object

com.github.robtimus.pool.PoolableObject<None>

com.github.robtimus.pool.ObjectWrapper<T>

Type Parameters:

T - The type of wrapped objects.

All Implemented Interfaces:

AutoCloseable

public final class ObjectWrapper<T>
extends PoolableObject<None>
implements AutoCloseable

A poolable object that wraps a single value. Instances will always be considered valid and have no resources to release. This class implements AutoCloseable, which allows instances to be used in try-with-resources blocks; when an instance is closed it is returned to the pool.

Author:

Rob Spoor

Constructor Summary

Constructors

Constructor and Description
ObjectWrapper(T value) Creates a new object wrapper.

Method Summary

Modifier and Type	Method and Description
void	close()
static <T> Pool<ObjectWrapper<T>,None>	newPool(PoolConfig config, Supplier<T> supplier, PoolLogger logger) Creates a new pool of ObjectWrapper instances.
protected void	releaseResources() Releases any resources associated with this object.
String	toString()
protected boolean	validate() Checks whether or not this object is still valid.
T	value() The wrapped value.

Methods inherited from class com.github.robtimus.pool.PoolableObject

addReference, isEnabled, logEvent, logEvent, logEvent, logEvent, release, removeReference

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectWrapper

public ObjectWrapper(T value)

Creates a new object wrapper.

Parameters:

value - The value to wrap.

Method Detail

value

public T value()

The wrapped value.

Returns:

The wrapped value.

validate

protected boolean validate()

Description copied from class: PoolableObject

Checks whether or not this object is still valid. Invalid object will be removed from the pool instead of being returned from Pool.acquire() or Pool.acquireNow(). They will also have their resources released.

Specified by:

validate in class PoolableObject<None>

Returns:

true if this object is still valid, or false otherwise.

releaseResources

protected void releaseResources()

Description copied from class: PoolableObject

Releases any resources associated with this object.

Specified by:

releaseResources in class PoolableObject<None>

close

public void close()

Specified by:

close in interface AutoCloseable

toString

public String toString()

Overrides:

toString in class Object

newPool

public static <T> Pool<ObjectWrapper<T>,None> newPool(PoolConfig config,
                                                      Supplier<T> supplier,
                                                      PoolLogger logger)

Creates a new pool of ObjectWrapper instances.

Type Parameters:

T - The type of objects wrapped by ObjectWrapper instances in the pool.

Parameters:

config - The configuration to use.

supplier - A supplier to serve as factory for wrapped objects.

logger - The logger to use to log events triggered by the pool or pooled objects.

Returns:

The created pool.

Throws:

NullPointerException - If the given configuration, supplier or logger is null.