public enum ForeignKeyDeleteAction extends java.lang.Enum<ForeignKeyDeleteAction>
The delete action applies to a secondary database that is configured to
have a foreign key integrity constraint. The delete action is specified by
calling SecondaryConfig.setForeignKeyDeleteAction(com.sleepycat.je.ForeignKeyDeleteAction)
.
When a record in the foreign key database is deleted, it is checked to
see if it is referenced by any record in the associated secondary database.
If the key is referenced, the delete action is applied. By default, the
delete action is ABORT
.
SecondaryConfig
Enum Constant and Description |
---|
ABORT
When a referenced record in the foreign key database is deleted, abort
the transaction by throwing a
DeleteConstraintException . |
CASCADE
When a referenced record in the foreign key database is deleted, delete
the primary database record that references it.
|
NULLIFY
When a referenced record in the foreign key database is deleted, set the
reference to null in the primary database record that references it,
thereby deleting the secondary key.
|
Modifier and Type | Method and Description |
---|---|
java.lang.String |
toString() |
static ForeignKeyDeleteAction |
valueOf(java.lang.String name)
Returns the enum constant of this type with the specified name.
|
static ForeignKeyDeleteAction[] |
values()
Returns an array containing the constants of this enum type, in
the order they are declared.
|
public static final ForeignKeyDeleteAction ABORT
DeleteConstraintException
.public static final ForeignKeyDeleteAction CASCADE
public static final ForeignKeyDeleteAction NULLIFY
public static ForeignKeyDeleteAction[] values()
for (ForeignKeyDeleteAction c : ForeignKeyDeleteAction.values()) System.out.println(c);
public static ForeignKeyDeleteAction valueOf(java.lang.String name)
name
- the name of the enum constant to be returned.java.lang.IllegalArgumentException
- if this enum type has no constant with the specified namejava.lang.NullPointerException
- if the argument is nullpublic java.lang.String toString()
toString
in class java.lang.Enum<ForeignKeyDeleteAction>
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