IncrementGenerator (Hibernate API Documentation) - Hibernate 3.2.4 正式版 API 英文文档

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org.hibernate.id
Class IncrementGenerator

java.lang.Object
  org.hibernate.id.IncrementGenerator

All Implemented Interfaces:: Configurable, IdentifierGenerator

public class IncrementGenerator
extends Object
implements IdentifierGenerator, Configurable

increment

An IdentifierGenerator that returns a long, constructed by counting from the maximum primary key value at startup. Not safe for use in a cluster!

Mapping parameters supported, but not usually needed: tables, column. (The tables parameter specified a comma-separated list of table names.)

Author:: Gavin King

Field Summary

Fields inherited from interface org.hibernate.id.IdentifierGenerator

ENTITY_NAME

Constructor Summary

IncrementGenerator()


Method Summary

void configure(Type type, Properties params, Dialect dialect)
          Configure this instance, given the value of parameters specified by the user as <param> elements.

Serializable generate(SessionImplementor session, Object object)
          Generate a new identifier.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

IncrementGenerator

public IncrementGenerator()

Method Detail

generate

public Serializable generate(SessionImplementor session,
                             Object object)
                      throws HibernateException

Description copied from interface: IdentifierGenerator

Generate a new identifier.

Specified by:: generate in interface IdentifierGenerator

Parameters:: session -; object - the entity or toplevel collection for which the id is being generated
Returns:: a new identifier
Throws:: HibernateException

configure

public void configure(Type type,
                      Properties params,
                      Dialect dialect)
               throws MappingException

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

Parameters:: params - param values, keyed by parameter name
Throws:: MappingException