net.kwfgrid.gwes.uiproxy
Class DefaultBuffer

java.lang.Object
  net.kwfgrid.gwes.uiproxy.AbstractBuffer
      net.kwfgrid.gwes.uiproxy.DefaultBuffer

All Implemented Interfaces:

Buffer, Consumer

public class DefaultBuffer
extends AbstractBuffer

Default implementation of buffer. Just a simple FIFO mechanism. This buffer supports the following properties:

• Buffer.size

Field Summary

protected List	_content
protected boolean	_overflow

Fields inherited from class net.kwfgrid.gwes.uiproxy.AbstractBuffer

_id, _size, DEFAULT_SIZE, SIZE_PROPERTY_KEY

Constructor Summary

DefaultBuffer()

Method Summary

void	handle(Object message) Handle a message.
Object[]	read() Read buffered messages.
protected boolean	shouldHandle(Object message) Determine if this buffer should handle the specified message.

Methods inherited from class net.kwfgrid.gwes.uiproxy.AbstractBuffer

getID, getSize, setID, setProperties, setProperty, setSize

Methods inherited from class java.lang.Object

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

Field Detail

_content

protected List _content

_overflow

protected boolean _overflow

Constructor Detail

DefaultBuffer

public DefaultBuffer()

Method Detail

handle

public void handle(Object message)

Description copied from interface: Buffer

Handle a message. The buffer itself determines if it is responsible for buffering the specified Message. Buffer overflows or other exceptions must be remembered internally and notified on forthcoming calls of read().

Specified by:

handle in interface Buffer

Specified by:

handle in interface Consumer

Specified by:

handle in class AbstractBuffer

Parameters:

message - The message.

read

public Object[] read()
              throws BufferException

Description copied from interface: Buffer

Read buffered messages. Details are determined by the implementations.

Specified by:

read in interface Buffer

Specified by:

read in class AbstractBuffer

Throws:

BufferException - If a message could not be handled for some reason.

shouldHandle

protected boolean shouldHandle(Object message)

Determine if this buffer should handle the specified message. The default implementation always returns true. Subclasses must override this method in order to sort out messages of interest.