Package org.hibernate.dialect.temptable

Enum TemporaryTableKind

java.lang.Object

java.lang.Enum<TemporaryTableKind>

org.hibernate.dialect.temptable.TemporaryTableKind

All Implemented Interfaces:

Serializable, Comparable<TemporaryTableKind>

public enum TemporaryTableKind
extends Enum<TemporaryTableKind>

Classifies the kinds of temporary table implementations.

Since:

6.0

Enum Constant Summary

Enum Constants

Enum Constant	Description
GLOBAL	Modeled as what the SQL standard calls a global temporary table, which is a table that is defined once per schema, but its data is scoped to a transaction where data is usually deleted automatically on transaction commit, though it is possible to control whether Hibernate should delete data or not through Dialect.getTemporaryTableAfterUseAction().
LOCAL	Modeled as what the SQL standard calls a local temporary table, which is a table that is defined per connection.
PERSISTENT	Modeled as a regular table with a special TemporaryTableSessionUidColumn, which is explicitly deleted from at the end of a transaction.

Method Summary

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

PERSISTENT

public static final TemporaryTableKind PERSISTENT

Modeled as a regular table with a special TemporaryTableSessionUidColumn, which is explicitly deleted from at the end of a transaction.

The table is created once on application startup, unless "hibernate.query.mutation_strategy.persistent.create_tables" is disabled and dropped on application startup unless "hibernate.query.mutation_strategy.persistent.create_tables" or "hibernate.query.mutation_strategy.persistent.drop_tables" are disabled.

LOCAL

public static final TemporaryTableKind LOCAL

Modeled as what the SQL standard calls a local temporary table, which is a table that is defined per connection.

Usually, the table is created when needed in a transaction and databases usually drop it on transaction commit, though it is possible to control if Hibernate should drop it explicitly through Dialect.getTemporaryTableAfterUseAction() and "hibernate.query.mutation_strategy.local_temporary.drop_tables".

GLOBAL

public static final TemporaryTableKind GLOBAL

Modeled as what the SQL standard calls a global temporary table, which is a table that is defined once per schema, but its data is scoped to a transaction where data is usually deleted automatically on transaction commit, though it is possible to control whether Hibernate should delete data or not through Dialect.getTemporaryTableAfterUseAction().

The table is created once on application startup, unless "hibernate.query.mutation_strategy.global_temporary.create_tables" is disabled and dropped on application startup unless "hibernate.query.mutation_strategy.global_temporary.create_tables" or "hibernate.query.mutation_strategy.global_temporary.drop_tables" are disabled.

Method Detail

values

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

Returns:

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

valueOf

public static TemporaryTableKind 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