javax.persistence.CacheRetrieveMode - JPA enum
javax.persistence
Enum CacheRetrieveMode
java.lang.Object
java.lang.Enum<javax.persistence.CacheRetrieveMode>
javax.persistence.CacheRetrieveMode
- Implemented Interfaces:
-
Serializable,Comparable<CacheRetrieveMode>
Used as the value of the
javax.persistence.cache.retrieveMode property to specify the behavior when data is retrieved by the find methods and by queries. - Since:
- JPA 2.0
Learn how to use CacheRetrieveMode in Chapter 3 of the ObjectDB/JPA manual.
Bypass the cache: get data directly from the database.
- Since:
- JPA 2.0
Read entity data from the cache: this is the default behavior.
- Since:
- JPA 2.0
CacheRetrieveMode 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.
- 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
Returns an array containing the constants of this enum type.
This method may be used to iterate over the constants as follows:
for (CacheRetrieveMode c : CacheRetrieveMode.values())
System.out.println(c) - Returns:
- an array containing the constants of this enum type, in the order they are declared
