Package org.hibernate.annotations

Enum FetchMode

java.lang.Object

java.lang.Enum<FetchMode>

org.hibernate.annotations.FetchMode

All Implemented Interfaces:

Serializable, Comparable<FetchMode>

public enum FetchMode
extends Enum<FetchMode>

How the association should be fetched. Defines the "how", compared to FetchType which defines "when"

Enum Constant Summary

Enum Constants

Enum Constant	Description
JOIN	Use an outer join to load the related entities, collections or joins.
SELECT	Use a secondary select for each individual entity, collection, or join load.
SUBSELECT	Available for collections only.

Method Summary

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

SELECT

public static final FetchMode SELECT

Use a secondary select for each individual entity, collection, or join load.

JOIN

public static final FetchMode JOIN

Use an outer join to load the related entities, collections or joins.

SUBSELECT

public static final FetchMode SUBSELECT

Available for collections only. When accessing a non-initialized collection, this fetch mode will trigger loading all elements of all collections of the same role for all owners associated with the persistence context using a single secondary select.

Method Detail

values

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

Returns:

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

valueOf

public static FetchMode 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

getHibernateFetchMode

public FetchMode getHibernateFetchMode()