Package com.webmethods.portal.service.cache.caches

Interface IDBCache

All Superinterfaces:

ICache, IComponent, IInitializable

All Known Subinterfaces:

IAliasCache, IClassCache, IDependentCache

public interface IDBCache
extends ICache

Field Summary

Fields

Modifier and Type	Field	Description
static final int	INVAL_KEYA
static final int	INVAL_KEYB
static final int	INVAL_KEYNAME
static final int	INVAL_PRIMARY
static final int	INVAL_SECONDARY

Fields inherited from interface com.webmethods.portal.service.cache.ICache

ID, ISCLUSTERED, MAX_SIZE

Method Summary

Modifier and Type	Method	Description
ICacheKey	createKey(IThingID thingIDA, IThingID thingIDB, String name, int secondKey)	creates key from things
int	invalidateByKey(ICacheKey key, int invalFlags)	invalidates by comparing the values in key that are marked in the flags.
void	purgeCache()	this should be called occasionally via a scheduled event to purge the cache of old and invalid entries.

Methods inherited from interface com.webmethods.portal.service.cache.ICache

createKey, createKey, createKey, flush, flushAll, flushAll, getCacheManager, getEntry, getMaxSize, getModified, getName, getReport, getSize, getValue, isClustered, put, refresh, update

Methods inherited from interface com.webmethods.portal.system.IComponent

getComponentData, getComponentName, getComponentProvider, getURI, isInitialized, setComponentData, setComponentProvider

Methods inherited from interface com.webmethods.portal.system.init.IInitializable

init, shutdown

Field Details

INVAL_KEYA

static final int INVAL_KEYA

See Also:

• Constant Field Values

INVAL_KEYB

static final int INVAL_KEYB

See Also:

• Constant Field Values

INVAL_KEYNAME

static final int INVAL_KEYNAME

See Also:

• Constant Field Values

INVAL_PRIMARY

static final int INVAL_PRIMARY

See Also:

• Constant Field Values

INVAL_SECONDARY

static final int INVAL_SECONDARY

See Also:

• Constant Field Values

Method Details

invalidateByKey

int invalidateByKey(ICacheKey key,
 int invalFlags)
             throws CacheException

invalidates by comparing the values in key that are marked in the flags. Either INVAL_PRIMARY or one of A,B,or NAME MUST be set returns # of rows invalidated

Throws:

CacheException

purgeCache

void purgeCache()

this should be called occasionally via a scheduled event to purge the cache of old and invalid entries. You could also schedule an event in the DB that calls the SP that this method calls. This should be called at least once a month, but weekly or daily may or may not provide additional benefit. It depends on usage etc.

createKey

ICacheKey createKey(IThingID thingIDA,
 IThingID thingIDB,
 String name,
 int secondKey)

creates key from things