Package au.csiro.pathling.utilities

Class ObjectHolder.KeyedHolder<C extends Serializable,V>

java.lang.Object

au.csiro.pathling.utilities.ObjectHolder.KeyedHolder<C,V>

Type Parameters:

C - the configuration type

V - the value type

All Implemented Interfaces:

ObjectHolder<C,V>, Closeable, AutoCloseable

Enclosing interface:

ObjectHolder<C extends Serializable,V>

public static class ObjectHolder.KeyedHolder<C extends Serializable,V>
extends Object
implements ObjectHolder<C,V>, Closeable

An implementation of ObjectHolder that memoises one instance per distinct configuration within the process. Unlike ObjectHolder.SingletonHolder this permits several configurations to coexist in the same JVM, which is required when a single process legitimately works with more than one configuration at a time (for example, querying two local terminology stores).

Nested Class Summary

Nested classes/interfaces inherited from interface au.csiro.pathling.utilities.ObjectHolder

ObjectHolder.KeyedHolder<C extends Serializable,V>, ObjectHolder.SingletonHolder<C extends Serializable,V>

Method Summary

Modifier and Type	Method	Description
void	close()	Closes this holder and releases the system resources associated with every held instance.
V	getOrCreate(C config)	Retrieves the instance associated with given configuration and if necessary creates ones.
void	reset()	Destroys all the instances stored the underlying scope.

Methods inherited from class java.lang.Object

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

Method Details

getOrCreate

@Nonnull
public V getOrCreate(@Nonnull
 C config)

Description copied from interface: ObjectHolder

Retrieves the instance associated with given configuration and if necessary creates ones.

Specified by:

getOrCreate in interface ObjectHolder<C extends Serializable,V>

Parameters:

config - the configuration for the instance.

Returns:

the instance associated with the holder.

reset

public void reset()

Description copied from interface: ObjectHolder

Destroys all the instances stored the underlying scope.

Specified by:

reset in interface ObjectHolder<C extends Serializable,V>

close

public void close()

Closes this holder and releases the system resources associated with every held instance. If the holder is already empty then invoking this method has no effect.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable