org.openrdf.query.algebra.helpers

Class VarNameCollector

java.lang.Object

org.openrdf.query.algebra.helpers.QueryModelVisitorBase<RuntimeException>

org.openrdf.query.algebra.helpers.VarNameCollector

All Implemented Interfaces:

QueryModelVisitor<RuntimeException>

public class VarNameCollector
extends QueryModelVisitorBase<RuntimeException>

A QueryModelVisitor that collects the names of (non-constant) variables that are used in a query model.

Constructor Summary

Constructors

Constructor and Description
VarNameCollector()

Method Summary

Methods

Modifier and Type	Method and Description
Set<String>	getVarNames()
void	meet(Var var)
static Set<String>	process(QueryModelNode node)

Methods inherited from class org.openrdf.query.algebra.helpers.QueryModelVisitorBase

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

Methods inherited from class java.lang.Object

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

Constructor Detail

VarNameCollector

public VarNameCollector()

Method Detail

process

public static Set<String> process(QueryModelNode node)

getVarNames

public Set<String> getVarNames()

meet

public void meet(Var var)

Specified by:

meet in interface QueryModelVisitor<RuntimeException>

Overrides:

meet in class QueryModelVisitorBase<RuntimeException>