de.fuberlin.wiwiss.d2rq.engine

Class TransformFilterCNF.DistributiveLawApplyer

java.lang.Object

de.fuberlin.wiwiss.d2rq.engine.TransformFilterCNF.DistributiveLawApplyer

All Implemented Interfaces:

ExprVisitor

Enclosing class:

TransformFilterCNF

public static class TransformFilterCNF.DistributiveLawApplyer
extends Object
implements ExprVisitor

Visitor for a filter-expression. Visits every expression-node of the expression-tree and applies the Distributive-law: a || (b && c) will become (a || b) && (a || c)

Author:

Herwig Leimer

Constructor Summary

Constructors

Constructor and Description
TransformFilterCNF.DistributiveLawApplyer() Constructor

Method Summary

Methods

Modifier and Type	Method and Description
void	finishVisit()
Expr	result()
void	startVisit()
void	visit(ExprAggregator eAgg)
void	visit(ExprFunction0 func)
void	visit(ExprFunction1 curExpr)
void	visit(ExprFunction2 curExpr)
void	visit(ExprFunction3 func)
void	visit(ExprFunctionN func)
void	visit(ExprFunctionOp funcOp)
void	visit(ExprVar nv)
void	visit(NodeValue nv)

Methods inherited from class java.lang.Object

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

Constructor Detail

TransformFilterCNF.DistributiveLawApplyer

public TransformFilterCNF.DistributiveLawApplyer()

Constructor

Method Detail

finishVisit

public void finishVisit()

Specified by:

finishVisit in interface ExprVisitor

startVisit

public void startVisit()

Specified by:

startVisit in interface ExprVisitor

visit

public void visit(NodeValue nv)

Specified by:

visit in interface ExprVisitor

visit

public void visit(ExprVar nv)

Specified by:

visit in interface ExprVisitor

visit

public void visit(ExprFunction0 func)

Specified by:

visit in interface ExprVisitor

visit

public void visit(ExprFunction1 curExpr)

Specified by:

visit in interface ExprVisitor

visit

public void visit(ExprFunction2 curExpr)

Specified by:

visit in interface ExprVisitor

visit

public void visit(ExprFunction3 func)

Specified by:

visit in interface ExprVisitor

visit

public void visit(ExprFunctionN func)

Specified by:

visit in interface ExprVisitor

visit

public void visit(ExprFunctionOp funcOp)

Specified by:

visit in interface ExprVisitor

visit

public void visit(ExprAggregator eAgg)

Specified by:

visit in interface ExprVisitor

result

public Expr result()