net.named_data.jndn.sync

Class DigestTree

java.lang.Object

net.named_data.jndn.sync.DigestTree

public class DigestTree
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DigestTree.Node

Constructor Summary

Constructors

Constructor and Description
DigestTree()

Method Summary

Methods

Modifier and Type	Method and Description
int	find(String dataPrefix, long sessionNo)
DigestTree.Node	get(int i)
String	getRoot() Get the root digest.
int	size()
boolean	update(String dataPrefix, long sessionNo, long sequenceNo) Update the digest tree and recompute the root digest.

Methods inherited from class java.lang.Object

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

Constructor Detail

DigestTree

public DigestTree()

Method Detail

update

public final boolean update(String dataPrefix,
             long sessionNo,
             long sequenceNo)

Update the digest tree and recompute the root digest. If the combination of dataPrefix and sessionNo already exists in the tree then update its sequenceNo (only if the given sequenceNo is newer), otherwise add a new node.

Parameters:

dataPrefix - The name prefix. This is encoded as UTF-8 to digest.

sessionNo - The session number.

sequenceNo - The new sequence number.

Returns:

True if the digest tree is updated, false if not (because the given sequenceNo is not newer than the existing sequence number).

find

public final int find(String dataPrefix,
       long sessionNo)

size

public final int size()

get

public final DigestTree.Node get(int i)

getRoot

public final String getRoot()

Get the root digest.

Returns:

The root digest as a hex string.