Package com.atlassian.bamboo.persistence

Class ResettableTableHiLoGenerator

java.lang.Object
com.atlassian.bamboo.persistence.ResettableTableHiLoGenerator
All Implemented Interfaces:
org.hibernate.boot.model.relational.ExportableProducer, org.hibernate.id.Configurable, org.hibernate.id.IdentifierGenerator, org.hibernate.id.PersistentIdentifierGenerator
public class ResettableTableHiLoGenerator extends Object implements org.hibernate.id.PersistentIdentifierGenerator, org.hibernate.id.Configurable
An implementation of a resettable hi/lo IdentifierGenerator which is compatible with Hibernate 5.
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

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final String
    MAX_LO
    The max_lo parameter

    Fields inherited from interface org.hibernate.id.IdentifierGenerator

    ENTITY_NAME, GENERATOR_NAME, JPA_ENTITY_NAME

    Fields inherited from interface org.hibernate.id.PersistentIdentifierGenerator

    CATALOG, IDENTIFIER_NORMALIZER, PK, SCHEMA, TABLE, TABLES

  • Constructor Summary

    Constructors
    Constructor
    Description
    ResettableTableHiLoGenerator()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    configure(org.hibernate.type.Type type, Properties params, org.hibernate.service.ServiceRegistry serviceRegistry)
     
    Serializable
    generate(org.hibernate.engine.spi.SharedSessionContractImplementor session, Object obj)
     
    int
    getMaxLo()
    Get the max_lo value, so that we can calculate a valid value for the next_hi DB value, given the ids already allocated in the database.
    void
    initialize(org.hibernate.boot.model.relational.SqlStringGenerationContext context)
     
    void
    registerExportables(org.hibernate.boot.model.relational.Database database)
     
    void
    reset()
    Set the lo value to more than maxLo to force a reset of the hi value.
    boolean
    supportsJdbcBatchInserts()
     

    Methods inherited from class java.lang.Object

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

    Methods inherited from interface org.hibernate.id.PersistentIdentifierGenerator

    generatorKey

  • Field Details

  • Constructor Details

    • ResettableTableHiLoGenerator

      public ResettableTableHiLoGenerator()

  • Method Details

    • configure

      public void configure(org.hibernate.type.Type type, Properties params, org.hibernate.service.ServiceRegistry serviceRegistry) throws org.hibernate.MappingException
      Specified by:
      configure in interface org.hibernate.id.Configurable
      Specified by:
      configure in interface org.hibernate.id.IdentifierGenerator
      Throws:
      org.hibernate.MappingException

    • initialize

      public void initialize(org.hibernate.boot.model.relational.SqlStringGenerationContext context)
      Specified by:
      initialize in interface org.hibernate.id.IdentifierGenerator

    • supportsJdbcBatchInserts

      public boolean supportsJdbcBatchInserts()
      Specified by:
      supportsJdbcBatchInserts in interface org.hibernate.id.IdentifierGenerator

    • generate

      public Serializable generate(org.hibernate.engine.spi.SharedSessionContractImplementor session, Object obj) throws org.hibernate.HibernateException
      Specified by:
      generate in interface org.hibernate.id.IdentifierGenerator
      Throws:
      org.hibernate.HibernateException

    • reset

      public void reset()
      Set the lo value to more than maxLo to force a reset of the hi value.

    • registerExportables

      public void registerExportables(org.hibernate.boot.model.relational.Database database)
      Specified by:
      registerExportables in interface org.hibernate.boot.model.relational.ExportableProducer
      Specified by:
      registerExportables in interface org.hibernate.id.IdentifierGenerator

    • getMaxLo

      public int getMaxLo()
      Get the max_lo value, so that we can calculate a valid value for the next_hi DB value, given the ids already allocated in the database.