javax.persistence

Enum SharedCacheMode

java.lang.Object

java.lang.Enum<SharedCacheMode>

javax.persistence.SharedCacheMode

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<SharedCacheMode>

public enum SharedCacheMode
extends java.lang.Enum<SharedCacheMode>

Specifies how the provider must use a second-level cache for the persistence unit. Corresponds to the value of the persistence.xml shared-cache-mode element, and returned as the result of PersistenceUnitInfo.getSharedCacheMode().

Since:

2.0

Enum Constant Summary

Enum Constants

Enum Constant and Description
ALL All entities and entity-related state and data are cached.
DISABLE_SELECTIVE Caching is enabled for all entities except those for which Cacheable(false) is specified.
ENABLE_SELECTIVE Caching is enabled for all entities for Cacheable(true) is specified.
NONE Caching is disabled for the persistence unit.
UNSPECIFIED Caching behavior is undefined: provider-specific defaults may apply.

Method Summary

Modifier and Type	Method and Description
static SharedCacheMode	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static SharedCacheMode[]	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

ALL

public static final SharedCacheMode ALL

All entities and entity-related state and data are cached.

NONE

public static final SharedCacheMode NONE

Caching is disabled for the persistence unit.

ENABLE_SELECTIVE

public static final SharedCacheMode ENABLE_SELECTIVE

Caching is enabled for all entities for Cacheable(true) is specified. All other entities are not cached.

DISABLE_SELECTIVE

public static final SharedCacheMode DISABLE_SELECTIVE

Caching is enabled for all entities except those for which Cacheable(false) is specified. Entities for which Cacheable(false) is specified are not cached.

UNSPECIFIED

public static final SharedCacheMode UNSPECIFIED

Caching behavior is undefined: provider-specific defaults may apply.

Method Detail

values

public static SharedCacheMode[] 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 (SharedCacheMode c : SharedCacheMode.values())
    System.out.println(c);

Returns:

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

valueOf

public static SharedCacheMode valueOf(java.lang.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:

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

java.lang.NullPointerException - if the argument is null