Package org.apache.cayenne.query
Enum QueryCacheStrategy
- All Implemented Interfaces:
Serializable
,Comparable<QueryCacheStrategy>
,java.lang.constant.Constable
Defines query result caching policy.
- Since:
- 3.0
-
Nested Class Summary
Nested classes/interfaces inherited from class java.lang.Enum
Enum.EnumDesc<E extends Enum<E>>
-
Enum Constant Summary
Enum ConstantDescriptionA cache policy stating that query results shall be cached by the ObjectContext that originated the query, independent from any other ObjectContexts.A cache policy stating that query results shall be cached by the ObjectContext that originated the query, independent from any other ObjectContexts, however the query that uses this policy should treat current cache state as expired, and force the database fetch.A default cache policy stating that the query results should not be cached.A cache policy ruling that query results shall be cached in a shared location accessible by all ObjectContexts.A cache policy ruling that query results shall be cached in a shared location accessible by all ObjectContexts, however the query that uses this policy should treat current cache state as expired, and force the database fetch. -
Method Summary
Modifier and TypeMethodDescriptionstatic QueryCacheStrategy
Returns the default strategy -NO_CACHE
.static QueryCacheStrategy
safeValueOf
(String string) Returns QueryCacheStrategy for the specified string name or default strategy for invalid names.static QueryCacheStrategy
Returns the enum constant of this type with the specified name.static QueryCacheStrategy[]
values()
Returns an array containing the constants of this enum type, in the order they are declared.
-
Enum Constant Details
-
NO_CACHE
A default cache policy stating that the query results should not be cached. -
LOCAL_CACHE
A cache policy stating that query results shall be cached by the ObjectContext that originated the query, independent from any other ObjectContexts. -
LOCAL_CACHE_REFRESH
A cache policy stating that query results shall be cached by the ObjectContext that originated the query, independent from any other ObjectContexts, however the query that uses this policy should treat current cache state as expired, and force the database fetch. -
SHARED_CACHE
A cache policy ruling that query results shall be cached in a shared location accessible by all ObjectContexts. -
SHARED_CACHE_REFRESH
A cache policy ruling that query results shall be cached in a shared location accessible by all ObjectContexts, however the query that uses this policy should treat current cache state as expired, and force the database fetch.
-
-
Method Details
-
values
Returns an array containing the constants of this enum type, in the order they are declared.- Returns:
- an array containing the constants of this enum type, in the order they are declared
-
valueOf
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 nameNullPointerException
- if the argument is null
-
safeValueOf
Returns QueryCacheStrategy for the specified string name or default strategy for invalid names. -
getDefaultStrategy
Returns the default strategy -NO_CACHE
.
-