edu.jas.util

Class DistributedList

java.lang.Object

edu.jas.util.DistributedList

public class DistributedList
extends java.lang.Object

Distributed version of a List. Implemented with a SortedMap / TreeMap to keep the sequence order of elements.

Author:

Heinz Kredel

Field Summary

Fields

Modifier and Type	Field and Description
protected ChannelFactory	cf
protected SocketChannel	channel
protected edu.jas.util.Listener	listener
protected java.util.SortedMap<edu.jas.util.Counter,java.lang.Object>	theList

Constructor Summary

Constructors

Constructor and Description
DistributedList(ChannelFactory cf, java.lang.String host, int port) Constructor for DistributedList.
DistributedList(SocketChannel sc) Constructor for DistributedList.
DistributedList(java.lang.String host) Constructor for DistributedList.
DistributedList(java.lang.String host, int port) Constructor for DistributedList.

Method Summary

Modifier and Type	Method and Description
void	add(java.lang.Object o) Add object to the list and distribute to other lists.
void	clear() Clear the List.
java.util.List<java.lang.Object>	getList() Get the internal list, convert from Collection.
void	init() List thread initialization and start.
boolean	isEmpty() Is the List empty?
java.util.Iterator	iterator() List iterator.
int	size() Size of the (local) list.
void	terminate() Terminate the list thread.

Methods inherited from class java.lang.Object

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

Field Detail

theList

protected final java.util.SortedMap<edu.jas.util.Counter,java.lang.Object> theList

cf

protected final ChannelFactory cf

channel

protected SocketChannel channel

listener

protected edu.jas.util.Listener listener

Constructor Detail

DistributedList

public DistributedList(java.lang.String host)

Constructor for DistributedList.

Parameters:

host - name or IP of server host.

DistributedList

public DistributedList(java.lang.String host,
                       int port)

Constructor for DistributedList.

Parameters:

host - name or IP of server host.

port - of server.

DistributedList

public DistributedList(ChannelFactory cf,
                       java.lang.String host,
                       int port)

Constructor for DistributedList.

Parameters:

cf - ChannelFactory to use.

host - name or IP of server host.

port - of server.

DistributedList

public DistributedList(SocketChannel sc)

Constructor for DistributedList.

Parameters:

sc - SocketChannel to use.

Method Detail

init

public void init()

List thread initialization and start.

terminate

public void terminate()

Terminate the list thread.

getList

public java.util.List<java.lang.Object> getList()

Get the internal list, convert from Collection.

size

public int size()

Size of the (local) list.

add

public void add(java.lang.Object o)

Add object to the list and distribute to other lists. Blocks until the object is send and received from the server (actually it blocks until some object is received).

Parameters:

o -

clear

public void clear()

Clear the List. caveat: must be called on all clients.

isEmpty

public boolean isEmpty()

Is the List empty?

iterator

public java.util.Iterator iterator()

List iterator.