org.apache.asn1.ber
Class DeterminateLengthVisitor

java.lang.Object
  org.apache.asn1.ber.DeterminateLengthVisitor

All Implemented Interfaces:

TupleNodeVisitor

public class DeterminateLengthVisitor

extends java.lang.Object

implements TupleNodeVisitor

A visitor used to transform a TLV tuple tree by altering tuples to use determinate length encodings rather than the indeterminate form.

Author:

Apache Directory Project $Rev: 157644 $

Field Summary

private VisitorMonitor

monitor the visitor monitor called when notible events occur

Constructor Summary

DeterminateLengthVisitor()

Method Summary

boolean	canVisit(TupleNode node) Checks to see if a node can be visited.
java.util.ArrayList	getOrder(TupleNode node, java.util.ArrayList children) Get the array of children to visit sequentially to determine the order of child visitations.
boolean	isPrefix() Determines whether the visitation order is prefix or postfix.
void	setMonitor(VisitorMonitor monitor) Sets the monitoring which recieves callbacks of notable events from this visitor.
void	visit(TupleNode node) Visits a tree of tuple nodes using a specific visitation order.

Methods inherited from class java.lang.Object

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

Field Detail

monitor

private VisitorMonitor monitor

the visitor monitor called when notible events occur

Constructor Detail

DeterminateLengthVisitor

public DeterminateLengthVisitor()

Method Detail

visit

public void visit(TupleNode node)

Visits a tree of tuple nodes using a specific visitation order.

Specified by:

visit in interface TupleNodeVisitor

Parameters:

node - the node to visit

canVisit

public boolean canVisit(TupleNode node)

Checks to see if a node can be visited.

Specified by:

canVisit in interface TupleNodeVisitor

Parameters:

node - the node to be visited

Returns:

whether or node the node should be visited

isPrefix

public boolean isPrefix()

Determines whether the visitation order is prefix or postfix.

Specified by:

isPrefix in interface TupleNodeVisitor

Returns:

true if the visitation is in prefix order, false otherwise.

getOrder

public java.util.ArrayList getOrder(TupleNode node,
                                    java.util.ArrayList children)

Get the array of children to visit sequentially to determine the order of child visitations. Some children may not be returned at all if canVisit() returns false on them.

Specified by:

getOrder in interface TupleNodeVisitor

Parameters:

node - the parent branch node

children - the child node array

Returns:

the new reordered array of children

setMonitor

public void setMonitor(VisitorMonitor monitor)

Description copied from interface: TupleNodeVisitor

Sets the monitoring which recieves callbacks of notable events from this visitor.

Specified by:

setMonitor in interface TupleNodeVisitor

Parameters:

monitor - the monitor instance for the visitor