org.wattdepot.server.depository.impl.hibernate

Class PersistenceCache

java.lang.Object

org.wattdepot.server.depository.impl.hibernate.PersistenceCache

public class PersistenceCache
extends Object

In memory cache of Organizations, Depositories, and Sensors. Intended to speed up WattDepotPersistence. It is a lazy cache.

Author:

Cam Moore

Constructor Summary

Constructors

Constructor and Description
PersistenceCache() Creates a new PersistenceCache.

Method Summary

Methods

Modifier and Type	Method and Description
Depository	deleteDepository(Depository depository) Deletes the depository from the cache.
Organization	deleteOrganization(Organization org) Deletes the organization from the cache.
Sensor	deleteSensor(Sensor sensor) Deletes the Sensor from the cache.
Depository	getDepository(String depId, String orgId) Gets the Depository defined by the depId and orgId.
Organization	getOrganization(String orgId) Gets the Organization for the given orgId.
Sensor	getSensor(String sensorId, String orgId) Gets the Sensor defined by the sensorId and orgId.
Depository	putDepository(Depository dep) Stores the Depository in the cache.
Organization	putOrganization(Organization org) Stores the Organization in the cache.
Sensor	putSensor(Sensor sensor) Stores the sensor in the cache.

Methods inherited from class java.lang.Object

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

Constructor Detail

PersistenceCache

public PersistenceCache()

Creates a new PersistenceCache.

Method Detail

getOrganization

public Organization getOrganization(String orgId)

Gets the Organization for the given orgId.

Parameters:

orgId - the organizations id.

Returns:

The Organization for the given id or null if the id is not in the cache.

putOrganization

public Organization putOrganization(Organization org)

Stores the Organization in the cache.

Parameters:

org - The organization to store.

Returns:

The old Organization in the cache or null if the organization is new to the cache.

deleteOrganization

public Organization deleteOrganization(Organization org)

Deletes the organization from the cache.

Parameters:

org - The organization to delete.

Returns:

The old organization from the cache or null if the organization wasn't in the cache.

getDepository

public Depository getDepository(String depId,
                       String orgId)

Gets the Depository defined by the depId and orgId.

Parameters:

depId - The depository id.

orgId - The organization id.

Returns:

The Depository for the given ids, or null if it is undefined.

putDepository

public Depository putDepository(Depository dep)

Stores the Depository in the cache.

Parameters:

dep - The Depository to store.

Returns:

The old Depository in the cache or null if the depository wasn't in the cache.

deleteDepository

public Depository deleteDepository(Depository depository)

Deletes the depository from the cache.

Parameters:

depository - The Depository to delete.

Returns:

The old Depository or null if the depository wasn't in the cache.

getSensor

public Sensor getSensor(String sensorId,
               String orgId)

Gets the Sensor defined by the sensorId and orgId.

Parameters:

sensorId - The sensor id.

orgId - the organizations id.

Returns:

The Sensor from the cache or null if the sensor isn't defined.

putSensor

public Sensor putSensor(Sensor sensor)

Stores the sensor in the cache.

Parameters:

sensor - The Sensor to store.

Returns:

The old Sensor from the cache or null if the Sensor wasn't in the cache.

deleteSensor

public Sensor deleteSensor(Sensor sensor)

Deletes the Sensor from the cache.

Parameters:

sensor - The Sensor to delete.

Returns:

The old sensor from the cache or null if the sensor wasn't in the cache.