org.axiondb.engine.visitors
Class FlattenWhereNodeVisitor

java.lang.Object
  org.axiondb.engine.visitors.FlattenWhereNodeVisitor

All Implemented Interfaces:

SelectableVisitor

public class FlattenWhereNodeVisitor
extends java.lang.Object
implements SelectableVisitor

Decomposes a WhereNodetree into a LinkedHashSetof WhereNodes that were originally ANDed together in the source tree.

Field Summary

protected java.util.Set

_nodes

Constructor Summary

FlattenWhereNodeVisitor()

Method Summary

java.util.Set	getNodes(Selectable node)
void	visit(Selectable sel)

Methods inherited from class java.lang.Object

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

Field Detail

_nodes

protected java.util.Set _nodes

Constructor Detail

FlattenWhereNodeVisitor

public FlattenWhereNodeVisitor()

Method Detail

getNodes

public java.util.Set getNodes(Selectable node)

visit

public void visit(Selectable sel)

Specified by:

visit in interface SelectableVisitor