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 (unbound) variables that are used in a query model.

Constructor Summary

VarNameCollector()

Method Summary

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, meetBinaryTupleOperator, meetBinaryValueOperator, meetCompareSubQueryValueOperator, meetNode, meetSubQueryValueOperator, meetUnaryTupleOperator, meetUnaryValueOperator

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>