net.sf.farrago.miniplan
Class FarragoMiniplanPersonalityFactory.FarragoMiniplanSessionPersonality

java.lang.Object
  net.sf.farrago.defimpl.FarragoDefaultSessionPersonality
      net.sf.farrago.miniplan.FarragoMiniplanPersonalityFactory.FarragoMiniplanSessionPersonality

All Implemented Interfaces:

FarragoSessionPersonality, FarragoStreamFactoryProvider

Enclosing class:

FarragoMiniplanPersonalityFactory

private static class FarragoMiniplanPersonalityFactory.FarragoMiniplanSessionPersonality
extends FarragoDefaultSessionPersonality

Nested Class Summary

Nested classes/interfaces inherited from class net.sf.farrago.defimpl.FarragoDefaultSessionPersonality

FarragoDefaultSessionPersonality.ParamValidator

Field Summary

private static String

MINIPLAN_VOLCANO

Fields inherited from class net.sf.farrago.defimpl.FarragoDefaultSessionPersonality

CACHE_STATEMENTS, CACHE_STATEMENTS_DEFAULT, database, DEGREE_OF_PARALLELISM, DEGREE_OF_PARALLELISM_DEFAULT, LABEL, LABEL_DEFAULT, paramValidator, REDUCE_NON_CORRELATED_SUBQUERIES, REDUCE_NON_CORRELATED_SUBQUERIES_FARRAGO_DEFAULT, SQUEEZE_JDBC_NUMERIC, SQUEEZE_JDBC_NUMERIC_DEFAULT, VALIDATE_DDL_ON_PREPARE, VALIDATE_DDL_ON_PREPARE_DEFAULT

Constructor Summary

protected

FarragoMiniplanPersonalityFactory.FarragoMiniplanSessionPersonality(FarragoDbSession session)

Method Summary

void	loadDefaultSessionVariables(FarragoSessionVariables variables) Loads variables from the session personality into a session variables object.
FarragoSessionPlanner	newPlanner(FarragoSessionPreparingStmt stmt, boolean init) Creates a new planner.

Methods inherited from class net.sf.farrago.defimpl.FarragoDefaultSessionPersonality

addRowCount, createInheritedSessionVariables, defineDdlHandlers, definePlannerListeners, definePrivileges, getDefaultLocalDataServerName, getOJRexImplementorTable, getRowCounts, getRuntimeContextClass, getSqlOperatorTable, initPreparingStmt, isAlterTableAddColumnIncremental, isJavaUdxRestartable, isSupportedType, newComponentImpl, newDdlValidator, newJmiQueryProcessor, newParser, newPreparingStmt, newPreparingStmt, newPreparingStmt, newRuntimeContext, newTypeFactory, registerRelMetadataProviders, registerStreamFactories, resetRowCounts, shouldReplacePreserveOriginalSql, supportsFeature, updateIndexRoot, updateRowCounts, validateSessionVariable

Methods inherited from class java.lang.Object

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

Field Detail

MINIPLAN_VOLCANO

private static final String MINIPLAN_VOLCANO

See Also:

Constant Field Values

Constructor Detail

FarragoMiniplanPersonalityFactory.FarragoMiniplanSessionPersonality

protected FarragoMiniplanPersonalityFactory.FarragoMiniplanSessionPersonality(FarragoDbSession session)

Method Detail

loadDefaultSessionVariables

public void loadDefaultSessionVariables(FarragoSessionVariables variables)

Description copied from interface: FarragoSessionPersonality

Loads variables from the session personality into a session variables object. Each personality uses on its own variables. This method allows the personality to declare its variables and set default values for them. If any variables already have values, then they will not be overwritten.

This method should be called when initializing a new session or when loading a new session personality for an existing session. This method "leaves a mark", as it has the side effect of permanently updating the session variables. Even if the session personality is swapped out, the changes will remain.

Specified by:

loadDefaultSessionVariables in interface FarragoSessionPersonality

Overrides:

loadDefaultSessionVariables in class FarragoDefaultSessionPersonality

Parameters:

variables - the session variables object

newPlanner

public FarragoSessionPlanner newPlanner(FarragoSessionPreparingStmt stmt,
                                        boolean init)

Description copied from interface: FarragoSessionPersonality

Creates a new planner.

Specified by:

newPlanner in interface FarragoSessionPersonality

Overrides:

newPlanner in class FarragoDefaultSessionPersonality

Parameters:

stmt - stmt on whose behalf planner will operate

init - whether to initialize default rules in new planner

Returns:

new planner