Package org.alfresco.repo.cache.lookup

Class EntityLookupCache.EntityLookupCallbackDAOAdaptor<K2 extends Serializable,V2,VK2 extends Serializable>

java.lang.Object

org.alfresco.repo.cache.lookup.EntityLookupCache.EntityLookupCallbackDAOAdaptor<K2,V2,VK2>

All Implemented Interfaces:

EntityLookupCache.EntityLookupCallbackDAO<K2,V2,VK2>

Enclosing class:

EntityLookupCache<K extends Serializable,V,VK extends Serializable>

public abstract static class EntityLookupCache.EntityLookupCallbackDAOAdaptor<K2 extends Serializable,V2,VK2 extends Serializable>
extends Object
implements EntityLookupCache.EntityLookupCallbackDAO<K2,V2,VK2>

Adaptor for implementations that support immutable entities. The update and delete operations throw UnsupportedOperationException.

Since:

3.2

Author:

Derek Hulley

Constructor Summary

Constructors

Constructor	Description
EntityLookupCallbackDAOAdaptor()

Method Summary

Modifier and Type	Method	Description
int	deleteByKey(K2 key)	Disallows the operation.
int	deleteByValue(V2 value)	Disallows the operation.
Pair<K2,V2>	findByValue(V2 value)	This implementation never finds a value and is backed by getValueKey(Object) returning nothing.
VK2	getValueKey(V2 value)	This implementation does not find by value and is backed by findByValue(Object) returning nothing.
int	updateValue(K2 key, V2 value)	Disallows the operation.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.alfresco.repo.cache.lookup.EntityLookupCache.EntityLookupCallbackDAO

createValue, findByKey

Constructor Detail

EntityLookupCallbackDAOAdaptor

public EntityLookupCallbackDAOAdaptor()

Method Detail

findByValue

public Pair<K2,V2> findByValue(V2 value)

This implementation never finds a value and is backed by getValueKey(Object) returning nothing.

Specified by:

findByValue in interface EntityLookupCache.EntityLookupCallbackDAO<K2 extends Serializable,V2,VK2 extends Serializable>

Parameters:

value - the value (business object) used to identify the entity (null allowed).

Returns:

Returns null always

getValueKey

public VK2 getValueKey(V2 value)

This implementation does not find by value and is backed by findByValue(Object) returning nothing.

Specified by:

getValueKey in interface EntityLookupCache.EntityLookupCallbackDAO<K2 extends Serializable,V2,VK2 extends Serializable>

Parameters:

value - the full value being keyed (never null)

Returns:

Returns null always

updateValue

public int updateValue(K2 key,
                       V2 value)

Disallows the operation.

Specified by:

updateValue in interface EntityLookupCache.EntityLookupCallbackDAO<K2 extends Serializable,V2,VK2 extends Serializable>

Parameters:

key - the existing key (ID) used to identify the entity (never null)

value - the new value

Returns:

Returns the row update count.

Throws:

UnsupportedOperationException - always

deleteByKey

public int deleteByKey(K2 key)

Disallows the operation.

Specified by:

deleteByKey in interface EntityLookupCache.EntityLookupCallbackDAO<K2 extends Serializable,V2,VK2 extends Serializable>

Parameters:

key - the key (ID) used to identify the entity (never null)

Returns:

Returns the row deletion count.

Throws:

UnsupportedOperationException - always

deleteByValue

public int deleteByValue(V2 value)

Disallows the operation.

Specified by:

deleteByValue in interface EntityLookupCache.EntityLookupCallbackDAO<K2 extends Serializable,V2,VK2 extends Serializable>

Parameters:

value - the value (business object) used to identify the enitity (null allowed)

Returns:

Returns the row deletion count.

Throws:

UnsupportedOperationException - always