Module org.seasar.doma.core

Package org.seasar.doma

Enum Class GenerationType

java.lang.Object

java.lang.Enum<GenerationType>

org.seasar.doma.GenerationType

All Implemented Interfaces:

Serializable, Comparable<GenerationType>, Constable

public enum GenerationType
extends Enum<GenerationType>

Defines strategies to generate identifiers for entity primary keys.

This enum is used with the GeneratedValue annotation to specify how database identifiers should be automatically generated.

See Also:

• GeneratedValue
• SequenceGenerator
• TableGenerator

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
IDENTITY	Uses a database IDENTITY column for ID generation.
SEQUENCE	Uses a database sequence for ID generation.
TABLE	Uses a database table for ID generation.

Method Summary

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

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

IDENTITY

public static final GenerationType IDENTITY

Uses a database IDENTITY column for ID generation. The database automatically assigns a unique value when a row is inserted.

SEQUENCE

public static final GenerationType SEQUENCE

Uses a database sequence for ID generation. Requires additional configuration via SequenceGenerator.

TABLE

public static final GenerationType TABLE

Uses a database table for ID generation. Requires additional configuration via TableGenerator.

Method Details

values

public static GenerationType[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

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

valueOf

public static GenerationType valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (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 class has no constant with the specified name

NullPointerException - if the argument is null