ollie.annotation

Enum ForeignKey.Deferrable

java.lang.Object

java.lang.Enum<ForeignKey.Deferrable>

ollie.annotation.ForeignKey.Deferrable

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<ForeignKey.Deferrable>

Enclosing class:

ForeignKey

public static enum ForeignKey.Deferrable
extends java.lang.Enum<ForeignKey.Deferrable>

If a statement modifies the contents of the database so that an immediate foreign key constraint is in violation at the conclusion the statement, an exception is thrown and the effects of the statement are reverted . By contrast, if a statement modifies the contents of the database such that a deferred foreign key constraint is violated, the violation is not reported immediately. Deferred foreign key constraints are not checked until the transaction tries to COMMIT. For as long as the user has an open transaction, the database is allowed to exist in a state that violates any number of deferred foreign key constraints. However, COMMIT will fail as long as foreign key constraints remain in violation.

If the current statement is not inside an explicit transaction (a BEGIN/COMMIT/ROLLBACK block), then an implicit transaction is committed as soon as the statement has finished executing.

Enum Constant Summary

Enum Constants

Enum Constant and Description
DEFERRABLE
NONE
NOT_DEFERRABLE

Method Summary

Modifier and Type	Method and Description
java.lang.String	keyword() Returns a keyword string for the deferrable behavior.
static ForeignKey.Deferrable	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static ForeignKey.Deferrable[]	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

NONE

public static final ForeignKey.Deferrable NONE

DEFERRABLE

public static final ForeignKey.Deferrable DEFERRABLE

NOT_DEFERRABLE

public static final ForeignKey.Deferrable NOT_DEFERRABLE

Method Detail

values

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

Returns:

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

valueOf

public static ForeignKey.Deferrable 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

keyword

public java.lang.String keyword()

Returns a keyword string for the deferrable behavior.

Returns:

The keyword.