org.teiid.query.sql.lang

Class FromClause

java.lang.Object

org.teiid.query.sql.lang.FromClause

All Implemented Interfaces:

Cloneable, LanguageObject

Direct Known Subclasses:

JoinPredicate, SubqueryFromClause, TableFunctionReference, UnaryFromClause

public abstract class FromClause
extends Object
implements LanguageObject

A FromClause is an interface for subparts held in a FROM clause. One type of FromClause is UnaryFromClause, which is the more common use and represents a single group. Another, less common type of FromClause is the JoinPredicate which represents a join between two FromClauses and may contain criteria.

Nested Class Summary

Nested classes/interfaces inherited from interface org.teiid.query.sql.LanguageObject

LanguageObject.Util

Field Summary

Fields

Modifier and Type	Field and Description
static String	PRESERVE

Constructor Summary

Constructors

Constructor and Description
FromClause()

Method Summary

Modifier and Type	Method and Description
abstract void	acceptVisitor(LanguageVisitor visitor) Method for accepting a visitor.
FromClause	clone() Implement clone to make objects cloneable.
protected abstract FromClause	cloneDirect()
abstract void	collectGroups(Collection<GroupSymbol> groups)
boolean	equals(Object obj)
Option.MakeDep	getMakeDep()
Option.MakeDep	getMakeInd()
boolean	hasHint()
boolean	isMakeDep()
boolean	isMakeNotDep()
boolean	isNoUnnest()
boolean	isOptional()
boolean	isPreserve()
void	setMakeDep(boolean makeDep)
void	setMakeDep(Option.MakeDep makedep)
void	setMakeInd(Option.MakeDep makeInd)
void	setMakeNotDep(boolean makeNotDep)
void	setNoUnnest(boolean noUnnest)
void	setOptional(boolean optional)
void	setPreserve(boolean preserve)
String	toString()

Methods inherited from class java.lang.Object

finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

PRESERVE

public static final String PRESERVE

See Also:

Constant Field Values

Constructor Detail

FromClause

public FromClause()

Method Detail

isOptional

public boolean isOptional()

setOptional

public void setOptional(boolean optional)

getMakeInd

public Option.MakeDep getMakeInd()

setMakeInd

public void setMakeInd(Option.MakeDep makeInd)

acceptVisitor

public abstract void acceptVisitor(LanguageVisitor visitor)

Description copied from interface: LanguageObject

Method for accepting a visitor. It is the responsibility of the language object to call back on the visitor.

Specified by:

acceptVisitor in interface LanguageObject

Parameters:

visitor - Visitor being used

collectGroups

public abstract void collectGroups(Collection<GroupSymbol> groups)

cloneDirect

protected abstract FromClause cloneDirect()

clone

public FromClause clone()

Description copied from interface: LanguageObject

Implement clone to make objects cloneable.

Specified by:

clone in interface LanguageObject

Overrides:

clone in class Object

Returns:

Deep clone of this object

setNoUnnest

public void setNoUnnest(boolean noUnnest)

isNoUnnest

public boolean isNoUnnest()

isMakeDep

public boolean isMakeDep()

getMakeDep

public Option.MakeDep getMakeDep()

setMakeDep

public void setMakeDep(boolean makeDep)

isMakeNotDep

public boolean isMakeNotDep()

setMakeNotDep

public void setMakeNotDep(boolean makeNotDep)

setMakeDep

public void setMakeDep(Option.MakeDep makedep)

isPreserve

public boolean isPreserve()

setPreserve

public void setPreserve(boolean preserve)

hasHint

public boolean hasHint()

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object