Package mondrian.server.monitor

Enum CellCacheEvent.Source

java.lang.Object

java.lang.Enum<CellCacheEvent.Source>

mondrian.server.monitor.CellCacheEvent.Source

All Implemented Interfaces:

Serializable, Comparable<CellCacheEvent.Source>

Enclosing class:

CellCacheEvent

public static enum CellCacheEvent.Source
extends Enum<CellCacheEvent.Source>

Enumeration of sources of a cell cache segment.

Enum Constant Summary

Enum Constants

Enum Constant	Description
CACHE_CONTROL	a segment that has been deleted by a call through the CacheControl API.
EXTERNAL	A segment that is placed into the cache by an external cache.
ROLLUP	a segment that has been loaded in response to a user query, and populated by rolling up existing cache segments.
SQL	A segment that has been loaded in response to a user query, and populated by generating and executing a SQL statement.

Method Summary

Modifier and Type	Method	Description
static CellCacheEvent.Source	valueOf(String name)	Returns the enum constant of this type with the specified name.
static CellCacheEvent.Source[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

EXTERNAL

public static final CellCacheEvent.Source EXTERNAL

A segment that is placed into the cache by an external cache.

Some caches (e.g. memcached) never generate this kind of event.

In JBoss Infinispan, one scenario that causes this kind of event is as follows. A user issues an MDX query against a different Mondrian node in the same Infinispan cluster. To resolve missing cells, that node issues a SQL statement to load a segment. Infinispan propagates that segment to its peers, and each peer is notified that an "external segment" is now in the cache.

SQL

public static final CellCacheEvent.Source SQL

A segment that has been loaded in response to a user query, and populated by generating and executing a SQL statement.

ROLLUP

public static final CellCacheEvent.Source ROLLUP

a segment that has been loaded in response to a user query, and populated by rolling up existing cache segments.

CACHE_CONTROL

public static final CellCacheEvent.Source CACHE_CONTROL

a segment that has been deleted by a call through the CacheControl API.

Method Detail

values

public static CellCacheEvent.Source[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (CellCacheEvent.Source c : CellCacheEvent.Source.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static CellCacheEvent.Source valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null