gnu.kawa.xml

Class TreeScanner

public abstract class TreeScanner extends MethodProc implements Externalizable, CanInline

Abstract class that scans part of a node tree. Takes a node argument, and writes matching "relative" nodes out to a PositionConsumer as a sequence of position pairs. This is uses to implement "path expressions" as in XPath/XSLT/XQuery. For example, the ChildAxis sub-class writes out all child nodes of the argument that match the 'type' NodePredicate.

Field Summary
NodePredicate	type

Method Summary
void	apply(CallContext ctx)
String	getDesc()
NodePredicate	getNodePredicate()
Expression	inline(ApplyExp exp, ExpWalker walker)
int	numArgs()
void	readExternal(ObjectInput in)
abstract void	scan(AbstractSequence seq, int ipos, PositionConsumer out)
String	toString()
void	writeExternal(ObjectOutput out)