org.objectweb.cjdbc.controller.cache.result
Class CachingGranularities

java.lang.Object
  org.objectweb.cjdbc.controller.cache.result.CachingGranularities

public class CachingGranularities

extends java.lang.Object

This class defines request cache granularities.

Version:

1.0

Author:

Emmanuel Cecchet, Nicolas Modrzyk

Field Summary

static int	COLUMN Column granularity: entries in the cache are invalidated based on column dependencies.
static int	COLUMN_UNIQUE Column granularity with UNIQUE queries: same as COLUMN except that UNIQUE queries that selects a single row based on a key are invalidated only when needed.
static int	DATABASE Database granularity: entries in the cache are invalidated every time a write (INSERT/UPDATE/DELETE/DROP/...) is sent to the database.
static int	TABLE Table granularity: entries in the cache are invalidated based on table dependencies.

Constructor Summary

CachingGranularities()

Method Summary

static java.lang.String	getGranularityName(int cacheGrain) Gets the name corresponding to a cache granularity level.
static java.lang.String	getGranularityXml(int cacheGrain) This method is needed to convert the value into the corresponding xml attribute value.

Methods inherited from class java.lang.Object

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

Field Detail

DATABASE

public static final int DATABASE

Database granularity: entries in the cache are invalidated every time a write (INSERT/UPDATE/DELETE/DROP/...) is sent to the database.

See Also:

Constant Field Values

TABLE

public static final int TABLE

Table granularity: entries in the cache are invalidated based on table dependencies.

See Also:

Constant Field Values

COLUMN

public static final int COLUMN

Column granularity: entries in the cache are invalidated based on column dependencies.

See Also:

Constant Field Values

COLUMN_UNIQUE

public static final int COLUMN_UNIQUE

Column granularity with UNIQUE queries: same as COLUMN except that UNIQUE queries that selects a single row based on a key are invalidated only when needed.

See Also:

Constant Field Values

Constructor Detail

CachingGranularities

public CachingGranularities()

Method Detail

getGranularityName

public static final java.lang.String getGranularityName(int cacheGrain)

Gets the name corresponding to a cache granularity level.

Parameters:

cacheGrain - cache granularity level

Returns:

the name of the granularity level

getGranularityXml

public static final java.lang.String getGranularityXml(int cacheGrain)

This method is needed to convert the value into the corresponding xml attribute value. If fails, returns noInvalidation granularity value so the xml retrieved can be used.

Parameters:

cacheGrain - cache granularity level

Returns:

the xml attribute value of the granularity level