org.hibernate.hql.spi.id

Class AbstractTableBasedBulkIdHandler

java.lang.Object

org.hibernate.hql.spi.id.AbstractTableBasedBulkIdHandler

Direct Known Subclasses:

AbstractIdsBulkIdHandler, TableBasedDeleteHandlerImpl, TableBasedUpdateHandlerImpl

public abstract class AbstractTableBasedBulkIdHandler
extends Object

Convenience base class for MultiTableBulkIdStrategy.UpdateHandler and MultiTableBulkIdStrategy.DeleteHandler implementations through TableBasedUpdateHandlerImpl and TableBasedDeleteHandlerImpl respectively.

Mainly supports common activities like:

• processing the original WHERE clause (if one) - processWhereClause(antlr.collections.AST)
• generating the proper SELECT clause for the id-table insert - generateIdInsertSelect(java.lang.String, org.hibernate.hql.spi.id.IdTableInfo, org.hibernate.hql.spi.id.AbstractTableBasedBulkIdHandler.ProcessedWhereClause)
• generating the sub-select from the id-table - generateIdSubselect(org.hibernate.persister.entity.Queryable, org.hibernate.hql.spi.id.IdTableInfo)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	AbstractTableBasedBulkIdHandler.ProcessedWhereClause

Constructor Summary

Constructors

Constructor and Description
AbstractTableBasedBulkIdHandler(SessionFactoryImplementor sessionFactory, org.hibernate.hql.internal.ast.HqlSqlWalker walker)

Method Summary

Modifier and Type	Method and Description
protected void	addAnyExtraIdSelectValues(SelectValues selectClause) Used from generateIdInsertSelect(java.lang.String, org.hibernate.hql.spi.id.IdTableInfo, org.hibernate.hql.spi.id.AbstractTableBasedBulkIdHandler.ProcessedWhereClause) to allow subclasses to define any extra values to be selected (and therefore stored into the bulk-id table).
protected SessionFactoryImplementor	factory()
protected String	generateIdInsertSelect(String tableAlias, IdTableInfo idTableInfo, AbstractTableBasedBulkIdHandler.ProcessedWhereClause whereClause) Generate the INSERT-SELECT statement for holding matching ids.
protected Select	generateIdSelect(String tableAlias, AbstractTableBasedBulkIdHandler.ProcessedWhereClause whereClause)
protected String	generateIdSubselect(Queryable persister, IdTableInfo idTableInfo)
abstract Queryable	getTargetedQueryable()
protected void	prepareForUse(Queryable persister, SharedSessionContractImplementor session)
protected AbstractTableBasedBulkIdHandler.ProcessedWhereClause	processWhereClause(antlr.collections.AST whereClause) Interprets the WHERE clause from the user-defined update/delete query
protected void	releaseFromUse(Queryable persister, SharedSessionContractImplementor session)
protected org.hibernate.hql.internal.ast.HqlSqlWalker	walker()

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractTableBasedBulkIdHandler

public AbstractTableBasedBulkIdHandler(SessionFactoryImplementor sessionFactory,
                                       org.hibernate.hql.internal.ast.HqlSqlWalker walker)

Method Detail

factory

protected SessionFactoryImplementor factory()

walker

protected org.hibernate.hql.internal.ast.HqlSqlWalker walker()

getTargetedQueryable

public abstract Queryable getTargetedQueryable()

processWhereClause

protected AbstractTableBasedBulkIdHandler.ProcessedWhereClause processWhereClause(antlr.collections.AST whereClause)

Interprets the WHERE clause from the user-defined update/delete query

Parameters:

whereClause - The user-defined WHERE clause

Returns:

The bulk-id-ready WHERE clause representation

generateIdInsertSelect

protected String generateIdInsertSelect(String tableAlias,
                                        IdTableInfo idTableInfo,
                                        AbstractTableBasedBulkIdHandler.ProcessedWhereClause whereClause)

Generate the INSERT-SELECT statement for holding matching ids. This is the INSERT used to populate the bulk-id table with ids matching the restrictions defined in the original WHERE clause

Parameters:

tableAlias - The table alias to use for the entity

whereClause - The processed representation for the user-defined WHERE clause.

Returns:

The INSERT-SELECT for populating the bulk-id table.

generateIdSelect

protected Select generateIdSelect(String tableAlias,
                                  AbstractTableBasedBulkIdHandler.ProcessedWhereClause whereClause)

addAnyExtraIdSelectValues

protected void addAnyExtraIdSelectValues(SelectValues selectClause)

Used from generateIdInsertSelect(java.lang.String, org.hibernate.hql.spi.id.IdTableInfo, org.hibernate.hql.spi.id.AbstractTableBasedBulkIdHandler.ProcessedWhereClause) to allow subclasses to define any extra values to be selected (and therefore stored into the bulk-id table). Used to store session identifier, e.g.

Parameters:

selectClause - The SelectValues that defines the select clause of the insert statement.

generateIdSubselect

protected String generateIdSubselect(Queryable persister,
                                     IdTableInfo idTableInfo)

prepareForUse

protected void prepareForUse(Queryable persister,
                             SharedSessionContractImplementor session)

releaseFromUse

protected void releaseFromUse(Queryable persister,
                              SharedSessionContractImplementor session)