org.openanzo.common.rdb.layout
Interface ILayoutCache<T>

Type Parameters:

T - Type of object being cached

All Known Implementing Classes:

NodeLayoutCacheProxy, ValueLayoutCacheProxy

public interface ILayoutCache<T>

Provides cache clearing and checking presence of objects cached by their reference or (long) id.

Author:

Stephen Evanchik, Joe Betz

Method Summary

T	cache(java.lang.Long id, java.lang.String value, java.lang.Long modifierId) Create object from provided ID and value and cache result
void	clearCache() Clear all cached objects and IDs
void	clearUncommittedCache() Clear any uncommitted cache entries
void	commitUncommittedCache() Commit any uncommitted cache entries
T	getIfCached(java.lang.Long id) Get the Object for this ID, if already cached
java.lang.Long	getIfCached(T obj) Get the ID for this Object, if already cached
boolean	isCached(java.lang.Long id) Return true if an Object with this ID is already cached
boolean	isCached(T obj) Return true if a ID for this Object is already cached

Method Detail

cache

T cache(java.lang.Long id,
        java.lang.String value,
        java.lang.Long modifierId)

Create object from provided ID and value and cache result

Parameters:

id - ID of node

value - String value of node

modifierId - modifierId for literals

Returns:

converted object for provided data

isCached

boolean isCached(T obj)

Return true if a ID for this Object is already cached

Parameters:

obj - object to check

Returns:

true if a ID for this Object is already cached

getIfCached

java.lang.Long getIfCached(T obj)

Get the ID for this Object, if already cached

Parameters:

obj - object to find cached ID

Returns:

the ID for this Object, if already cached

isCached

boolean isCached(java.lang.Long id)

Return true if an Object with this ID is already cached

Parameters:

id - id to check

Returns:

true if an Object with this ID is already cached

getIfCached

T getIfCached(java.lang.Long id)

Get the Object for this ID, if already cached

Parameters:

id - id of Object to retrieve

Returns:

the Object for this ID, if already cached

clearCache

void clearCache()

Clear all cached objects and IDs

commitUncommittedCache

void commitUncommittedCache()

Commit any uncommitted cache entries

clearUncommittedCache

void clearUncommittedCache()

Clear any uncommitted cache entries