org.teiid.query.optimizer.relational.rules

Class RulePlaceAccess

java.lang.Object

org.teiid.query.optimizer.relational.rules.RulePlaceAccess

All Implemented Interfaces:

OptimizerRule

public final class RulePlaceAccess
extends Object
implements OptimizerRule

This rule finds all SOURCE nodes and associates ACCESS patterns, ACCESS nodes, and aliases.

Field Summary

Fields

Modifier and Type	Field and Description
static String	CONFORMED_SOURCES
static String	RECONTEXT_STRING

Constructor Summary

Constructors

Constructor and Description
RulePlaceAccess()

Method Summary

Modifier and Type	Method and Description
PlanNode	execute(PlanNode plan, QueryMetadataInterface metadata, CapabilitiesFinder capFinder, RuleStack rules, AnalysisRecord analysisRecord, CommandContext context)
static GroupSymbol	recontextSymbol(GroupSymbol oldSymbol, Set<String> names) Creates a uniquely named group symbol given the old symbol
String	toString() Return rule name

Methods inherited from class java.lang.Object

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

Field Detail

CONFORMED_SOURCES

public static final String CONFORMED_SOURCES

See Also:

Constant Field Values

RECONTEXT_STRING

public static final String RECONTEXT_STRING

See Also:

Constant Field Values

Constructor Detail

RulePlaceAccess

public RulePlaceAccess()

Method Detail

execute

public PlanNode execute(PlanNode plan,
                        QueryMetadataInterface metadata,
                        CapabilitiesFinder capFinder,
                        RuleStack rules,
                        AnalysisRecord analysisRecord,
                        CommandContext context)
                 throws QueryMetadataException,
                        TeiidComponentException,
                        QueryPlannerException

Specified by:

execute in interface OptimizerRule

Throws:

QueryMetadataException

TeiidComponentException

QueryPlannerException

recontextSymbol

public static GroupSymbol recontextSymbol(GroupSymbol oldSymbol,
                                          Set<String> names)

Creates a uniquely named group symbol given the old symbol

Parameters:

oldSymbol -

names - a case insensitive set of all known groups

Returns:

toString

public String toString()

Return rule name

Overrides:

toString in class Object

Returns:

Rule name