gr.uoa.di.madgik.grs.registry

Class GRSRegistry

java.lang.Object

gr.uoa.di.madgik.grs.registry.GRSRegistry

public class GRSRegistry
extends Object

The GRSRegistry utility class is a statically initialized single instance per JVM that can uniquely register and reference items registered to it using a unique identifier. The items that can be registered are IBuffer and IBufferStore instances. In addition to instantiating the registry, during the static initialization, a LifecycleManager is also initialize and set to monitor the lifecycle properties of the registered items

Author:

gpapanikos

Field Summary

Fields

Modifier and Type	Field and Description
static GRSRegistry	Registry The registry instance used

Method Summary

Methods

Modifier and Type	Method and Description
String	add(IBuffer buffer) Registers the provided IBuffer in the registry and assigns it with a unique id with which it can be referenced
String	add(IBufferStore store) Registers the provided IBufferStore in the registry and assigns it with a unique id with which it can be referenced
IBuffer	getBuffer(String key) Retrieves the IBuffer entry that is associated with the provided key
protected Collection<IBuffer>	getBufferEntries() Retrieves the available IBuffer entries stored in the registry
IBufferStore	getStore(String key) Retrieves the IBufferStore entry that is associated with the provided key
protected Collection<IBufferStore>	getStoreEntries() Retrieves the available IBufferStore entries stored in the registry
void	remove(String key) Removes the entry with the specific key from the registry if found and calls IBuffer.dispose() or IBufferStore.dispose() depending on the nature of the respective entry

Methods inherited from class java.lang.Object

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

Field Detail

Registry

public static final GRSRegistry Registry

The registry instance used

Method Detail

add

public String add(IBuffer buffer)

Registers the provided IBuffer in the registry and assigns it with a unique id with which it can be referenced

Parameters:

buffer - the IBuffer to register

Returns:

the key the IBuffer was assigned

add

public String add(IBufferStore store)

Registers the provided IBufferStore in the registry and assigns it with a unique id with which it can be referenced

Parameters:

store - the IBufferStore to register

Returns:

the key the IBufferStore was assigned

getBuffer

public IBuffer getBuffer(String key)

Retrieves the IBuffer entry that is associated with the provided key

Parameters:

key - the key of the entry to retrieve

Returns:

the IBuffer associated with the key or null if no IBuffer is associated with the key

getStore

public IBufferStore getStore(String key)

Retrieves the IBufferStore entry that is associated with the provided key

Parameters:

key - the key of the entry to retrieve

Returns:

the IBufferStore associated with the key or null if no IBufferStore is associated with the key

remove

public void remove(String key)

Removes the entry with the specific key from the registry if found and calls IBuffer.dispose() or IBufferStore.dispose() depending on the nature of the respective entry

Parameters:

key - the key of the entry to remove and dispose

getBufferEntries

protected Collection<IBuffer> getBufferEntries()

Retrieves the available IBuffer entries stored in the registry

Returns:

the available IBuffer entries

getStoreEntries

protected Collection<IBufferStore> getStoreEntries()

Retrieves the available IBufferStore entries stored in the registry

Returns:

the available IBufferStore entries