TableHiLoGenerator (Hibernate Core Aggregator 3.6.10.Final API)

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java.lang.Object
- org.hibernate.engine.TransactionHelper
- - org.hibernate.id.TableGenerator
  - - org.hibernate.id.TableHiLoGenerator

All Implemented Interfaces:

Configurable, IdentifierGenerator, PersistentIdentifierGenerator
```
public class TableHiLoGenerator
extends TableGenerator
```
hilo

An IdentifierGenerator that returns a Long, constructed using a hi/lo algorithm. The hi value MUST be fetched in a separate transaction to the Session transaction so the generator must be able to obtain a new connection and commit it. Hence this implementation may not be used when the user is supplying connections. In this case a SequenceHiLoGenerator would be a better choice (where supported).

Mapping parameters supported: table, column, max_lo

Author:

Gavin King

See Also:
SequenceHiLoGenerator

Field Summary

Fields
Modifier and Type Field and Description

static String MAX_LO
The max_lo parameter
- Fields inherited from class org.hibernate.id.TableGenerator
  COLUMN, DEFAULT_COLUMN_NAME, DEFAULT_TABLE_NAME, TABLE
- Fields inherited from interface org.hibernate.id.PersistentIdentifierGenerator
  CATALOG, IDENTIFIER_NORMALIZER, PK, SCHEMA, SQL_STATEMENT_LOGGER, TABLES
- Fields inherited from interface org.hibernate.id.IdentifierGenerator
  ENTITY_NAME

Constructor Summary

Constructors
Constructor and Description

TableHiLoGenerator()

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`configure(Type type, Properties params, Dialect d)` Configure this instance, given the value of parameters specified by the user as `<param>` elements.
`Serializable`	`generate(SessionImplementor session, Object obj)` Generate a new identifier.

Methods inherited from class org.hibernate.id.TableGenerator
buildHolder, doWorkInCurrentTransaction, generateHolder, generatorKey, sqlCreateStrings, sqlDropStrings

Methods inherited from class org.hibernate.engine.TransactionHelper
doWorkInNewTransaction

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - MAX_LO
```
public static final String MAX_LO
```
    The max_lo parameter
    
    See Also:
    Constant Field Values
- Constructor Detail
  - TableHiLoGenerator
```
public TableHiLoGenerator()
```
- Method Detail
  - configure
```
public void configure(Type type,
             Properties params,
             Dialect d)
```
    Description copied from interface: Configurable
    
    Configure this instance, given the value of parameters specified by the user as <param> elements. This method is called just once, following instantiation.
    
    Specified by:
    
    configure in interface Configurable
    
    Overrides:
    
    configure in class TableGenerator
    
    params - param values, keyed by parameter name
  - generate
```
public Serializable generate(SessionImplementor session,
                    Object obj)
```
    Description copied from interface: IdentifierGenerator
    
    Generate a new identifier.
    
    Specified by:
    
    generate in interface IdentifierGenerator
    
    Overrides:
    
    generate in class TableGenerator
    
    obj - the entity or toplevel collection for which the id is being generated
    
    Returns:
    a new identifier

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