Class ConstantOptimizer.ConstantVisitor

java.lang.Object

org.eclipse.rdf4j.query.algebra.helpers.AbstractQueryModelVisitor<RuntimeException>

org.eclipse.rdf4j.query.algebra.evaluation.impl.ConstantOptimizer.VarNameCollector

org.eclipse.rdf4j.query.algebra.evaluation.impl.ConstantOptimizer.ConstantVisitor

All Implemented Interfaces:

QueryModelVisitor<RuntimeException>

Enclosing class:

ConstantOptimizer

@Deprecated(forRemoval=true,
            since="4.1.0")
protected class ConstantOptimizer.ConstantVisitor
extends ConstantOptimizer.VarNameCollector

Deprecated, for removal: This API element is subject to removal in a future version.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final List<ProjectionElemList>	projElemLists	Deprecated, for removal: This API element is subject to removal in a future version.

Fields inherited from class ConstantOptimizer.VarNameCollector

varNames

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ConstantVisitor()	Deprecated, for removal: This API element is subject to removal in a future version.

Method Summary

Modifier and Type	Method	Description
private boolean	isConstant(ValueExpr expr)	Deprecated, for removal: This API element is subject to removal in a future version.
private boolean	isConstantZeroArgFunction(FunctionCall functionCall)	Deprecated, for removal: This API element is subject to removal in a future version. Determines if the provided zero-arg function is a function that should return a constant value for the entire query execution (e.g NOW()), or if it should generate a new value for every call (e.g.
void	meet(And and)	Deprecated, for removal: This API element is subject to removal in a future version.
void	meet(Bound bound)	Deprecated, for removal: This API element is subject to removal in a future version.
void	meet(FunctionCall functionCall)	Deprecated, for removal: This API element is subject to removal in a future version.
void	meet(If node)	Deprecated, for removal: This API element is subject to removal in a future version.
void	meet(Or or)	Deprecated, for removal: This API element is subject to removal in a future version.
void	meet(ProjectionElemList projElems)	Deprecated, for removal: This API element is subject to removal in a future version.
void	meet(Regex node)	Deprecated, for removal: This API element is subject to removal in a future version. Override meetBinaryValueOperator
protected void	meetBinaryValueOperator(BinaryValueOperator binaryValueOp)	Deprecated, for removal: This API element is subject to removal in a future version. Method called by all meet methods with a BinaryValueOperator node as argument.
protected void	meetUnaryValueOperator(UnaryValueOperator unaryValueOp)	Deprecated, for removal: This API element is subject to removal in a future version. Method called by all meet methods with a UnaryValueOperator node as argument.

Methods inherited from class ConstantOptimizer.VarNameCollector

meet

Methods inherited from class AbstractQueryModelVisitor

meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meet, meetBinaryTupleOperator, meetCompareSubQueryValueOperator, meetNAryValueOperator, meetNode, meetOther, meetSubQueryValueOperator, meetUnaryTupleOperator, meetUpdateExpr

Methods inherited from class Object

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

Field Details

projElemLists

final List<ProjectionElemList> projElemLists

Deprecated, for removal: This API element is subject to removal in a future version.

Constructor Details

ConstantVisitor

protected ConstantVisitor()

Deprecated, for removal: This API element is subject to removal in a future version.

Method Details

meet

public void meet(ProjectionElemList projElems)

Deprecated, for removal: This API element is subject to removal in a future version.

Specified by:

meet in interface QueryModelVisitor<RuntimeException>

Overrides:

meet in class AbstractQueryModelVisitor<RuntimeException>

meet

public void meet(Or or)

Deprecated, for removal: This API element is subject to removal in a future version.

Specified by:

meet in interface QueryModelVisitor<RuntimeException>

Overrides:

meet in class AbstractQueryModelVisitor<RuntimeException>

meet

public void meet(And and)

Deprecated, for removal: This API element is subject to removal in a future version.

Specified by:

meet in interface QueryModelVisitor<RuntimeException>

Overrides:

meet in class AbstractQueryModelVisitor<RuntimeException>

meetBinaryValueOperator

protected void meetBinaryValueOperator(BinaryValueOperator binaryValueOp)

Deprecated, for removal: This API element is subject to removal in a future version.

Description copied from class: AbstractQueryModelVisitor

Method called by all meet methods with a BinaryValueOperator node as argument. Forwards the call to AbstractQueryModelVisitor.meetNode(QueryModelNode) by default.

Overrides:

meetBinaryValueOperator in class AbstractQueryModelVisitor<RuntimeException>

Parameters:

binaryValueOp - The node that is being visited.

meetUnaryValueOperator

protected void meetUnaryValueOperator(UnaryValueOperator unaryValueOp)

Deprecated, for removal: This API element is subject to removal in a future version.

Description copied from class: AbstractQueryModelVisitor

Method called by all meet methods with a UnaryValueOperator node as argument. Forwards the call to AbstractQueryModelVisitor.meetNode(QueryModelNode) by default.

Overrides:

meetUnaryValueOperator in class AbstractQueryModelVisitor<RuntimeException>

Parameters:

unaryValueOp - The node that is being visited.

meet

public void meet(FunctionCall functionCall)

Deprecated, for removal: This API element is subject to removal in a future version.

Specified by:

meet in interface QueryModelVisitor<RuntimeException>

Overrides:

meet in class AbstractQueryModelVisitor<RuntimeException>

isConstantZeroArgFunction

private boolean isConstantZeroArgFunction(FunctionCall functionCall)

Deprecated, for removal: This API element is subject to removal in a future version.

Determines if the provided zero-arg function is a function that should return a constant value for the entire query execution (e.g NOW()), or if it should generate a new value for every call (e.g. RAND()).

Parameters:

functionCall - a zero-arg function call.

Returns:

true iff the provided function returns a constant value for the query execution, false otherwise.

meet

public void meet(Bound bound)

Deprecated, for removal: This API element is subject to removal in a future version.

Specified by:

meet in interface QueryModelVisitor<RuntimeException>

Overrides:

meet in class AbstractQueryModelVisitor<RuntimeException>

meet

public void meet(If node)

Deprecated, for removal: This API element is subject to removal in a future version.

Specified by:

meet in interface QueryModelVisitor<RuntimeException>

Overrides:

meet in class AbstractQueryModelVisitor<RuntimeException>

meet

public void meet(Regex node)

Deprecated, for removal: This API element is subject to removal in a future version.

Override meetBinaryValueOperator

Specified by:

meet in interface QueryModelVisitor<RuntimeException>

Overrides:

meet in class AbstractQueryModelVisitor<RuntimeException>

isConstant

private boolean isConstant(ValueExpr expr)

Deprecated, for removal: This API element is subject to removal in a future version.