de.ipcon.db.core

Interface CachingBOLoaderGCStrategyI

All Superinterfaces:

java.lang.Iterable<BO>

All Known Implementing Classes:

CachingBOLoaderLRUStrategy.ClassLimitedLRUContainer

public interface CachingBOLoaderGCStrategyI
extends java.lang.Iterable<BO>

Interface to implement an explicit GC Strategy for a CachingBOLoader. Implementations should support an asynchronous thread that calls CachingBOLoader#gc sometimes to reduce the cache size sometimes.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	$0

Method Summary

Modifier and Type	Method and Description
void	clear() Resets the caching strategy, e.g. because all cached objects have been dropped
void	put(java.lang.Long k, BO v)
void	putAll(java.util.Map<java.lang.Long,BO> m) Called by the CachingBOLoader after new BOs have been inserted into the Cache, to allow the Strategy to add relevant root BOs to its internal structure.
void	rescheduleGC(int interval)
void	stopAutoGC() Stops any scheduled GC thread of this strategy.
void	updateOnCacheHit(BO bo) Called after a get or frap got a cache hit and did not need to put a new BO inside the cache.
void	updateWriteAccess(BO bo) Updates the caching strategy with a new 'written'/'added'/'coerced' time after a possibly existing BO would've been put into the cache again if it weren't already there yet.

Methods inherited from interface java.lang.Iterable

forEach, iterator, spliterator

Field Detail

$0

static final java.lang.String $0

See Also:

Constant Field Values

Method Detail

clear

void clear()

Resets the caching strategy, e.g. because all cached objects have been dropped

putAll

void putAll(java.util.Map<java.lang.Long,BO> m)

Called by the CachingBOLoader after new BOs have been inserted into the Cache, to allow the Strategy to add relevant root BOs to its internal structure. The implementing class should decide by itself which provided BOs are relevant for its strategy. Will be called with a 'write lock' on the internal BO cache and prevents a parrallel gc() execution.

Parameters:

m - the map of BOs that were just now added into the local cache, nonnull.

put

void put(java.lang.Long k,
         BO v)

updateWriteAccess

void updateWriteAccess(BO bo)

Updates the caching strategy with a new 'written'/'added'/'coerced' time after a possibly existing BO would've been put into the cache again if it weren't already there yet.

updateOnCacheHit

void updateOnCacheHit(BO bo)

Called after a get or frap got a cache hit and did not need to put a new BO inside the cache. Can be called asynchronously by different threads and might not have a write lock on the cache.

stopAutoGC

void stopAutoGC()

Stops any scheduled GC thread of this strategy.

rescheduleGC

void rescheduleGC(int interval)