Package com.sun.jdo.spi.persistence.support.sqlstore.sql.generator

Class CorrelatedInSelectPlan

java.lang.Object

com.sun.jdo.spi.persistence.support.sqlstore.sql.generator.QueryPlan

com.sun.jdo.spi.persistence.support.sqlstore.sql.generator.SelectQueryPlan

com.sun.jdo.spi.persistence.support.sqlstore.sql.generator.CorrelatedSelectPlan

com.sun.jdo.spi.persistence.support.sqlstore.sql.generator.CorrelatedInSelectPlan

public class CorrelatedInSelectPlan
extends CorrelatedSelectPlan

Implements the select plan for In-Subqueries.

Author:

Markus Fuchs, Mitesh Meswani

Field Summary

Fields inherited from class com.sun.jdo.spi.persistence.support.sqlstore.sql.generator.CorrelatedSelectPlan

parentPlan

Fields inherited from class com.sun.jdo.spi.persistence.support.sqlstore.sql.generator.SelectQueryPlan

constraint, MULTILEVEL_PREFETCH_PROPERTY, options, parentField, ST_C_BUILT, ST_OC_BUILT

Fields inherited from class com.sun.jdo.spi.persistence.support.sqlstore.sql.generator.QueryPlan

ACT_DELETE, ACT_INSERT, ACT_NOOP, ACT_SELECT, ACT_UPDATE, action, config, messages, ST_BUILT, statements, status, store, tables

Constructor Summary

Constructors

Constructor	Description
CorrelatedInSelectPlan(RetrieveDesc desc, SQLStoreManager store, ForeignFieldDesc parentField, SelectQueryPlan parentPlan)

Method Summary

Modifier and Type	Method	Description
protected void	doCorrelatedJoin()	No-Op.
protected void	processFields()	Add the fields joining the subquery to the list of selected fields.

Methods inherited from class com.sun.jdo.spi.persistence.support.sqlstore.sql.generator.CorrelatedSelectPlan

addQueryTables, processConstraints

Methods inherited from class com.sun.jdo.spi.persistence.support.sqlstore.sql.generator.SelectQueryPlan

addColumn, addJoinConstraint, addTable, build, getConstraint, getResult, newInstance, newStatement, processOrderConstraints, processStatements

Methods inherited from class com.sun.jdo.spi.persistence.support.sqlstore.sql.generator.QueryPlan

addQueryTable, addQueryTable, addQueryTables, addStatement, createStatement, findQueryTable, findQueryTable, getAction, getConfig, getStatement, getStatements

Methods inherited from class java.lang.Object

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

Constructor Detail

CorrelatedInSelectPlan

public CorrelatedInSelectPlan(RetrieveDesc desc,
                              SQLStoreManager store,
                              ForeignFieldDesc parentField,
                              SelectQueryPlan parentPlan)

Method Detail

processFields

protected void processFields()

Add the fields joining the subquery to the list of selected fields. The joined table is added as a side-effect.

Overrides:

processFields in class SelectQueryPlan

doCorrelatedJoin

protected void doCorrelatedJoin()

No-Op. No join condition is added for correlated in selects, as the queries are joined on the selected fields.

Specified by:

doCorrelatedJoin in class CorrelatedSelectPlan