org.directwebremoting.dwrp
Class PlainScriptConduit

java.lang.Object
  org.directwebremoting.dwrp.BaseScriptConduit
      org.directwebremoting.dwrp.PlainScriptConduit

All Implemented Interfaces:

ScriptConduit

public class PlainScriptConduit
extends BaseScriptConduit

A ScriptConduit for use with plain Javascript output.

Scripts are plain Javascript without 'execute-in-parent-context' wrapping, but with script-start and script-end markers.

If this conduit is used the client should direct the output to an iframe and then poll, looking for new data into the iframe. The html tags should be removed and script between script-start and script-end tags eval()ed.

This conduit is useful for Firefox. It will not work as it stands with IE 6/7 because they don't allow the browser to see data entering an iframe until it overflows a 4k buffer.

Author:

Joe Walker [joe at getahead dot ltd dot uk]

Constructor Summary

PlainScriptConduit(java.io.PrintWriter out, java.lang.String instanceId, java.lang.String scriptTagProtection)
Simple ctor

Method Summary

void	beginChunk() Called before a each set of scripts that are to be sent.
void	beginStreamAndChunk() Called when we are initially setting up the stream.
void	endChunk() Called after each set of scripts when they have been sent.
void	endStreamAndChunk() Called when we are shutting the stream down.
java.lang.String	getOutboundMimeType() What mime type should we send to the browser for this data?
void	sendScript(java.lang.String script) Write a script to remote side.

Methods inherited from class org.directwebremoting.dwrp.BaseScriptConduit

setAccessLogLevel, setDebugScriptOutput

Methods inherited from class java.lang.Object

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

Constructor Detail

PlainScriptConduit

public PlainScriptConduit(java.io.PrintWriter out,
                          java.lang.String instanceId,
                          java.lang.String scriptTagProtection)

Simple ctor

Method Detail

getOutboundMimeType

public java.lang.String getOutboundMimeType()

Description copied from interface: ScriptConduit

What mime type should we send to the browser for this data?

Returns:

A mime-type

beginStreamAndChunk

public void beginStreamAndChunk()

Description copied from interface: ScriptConduit

Called when we are initially setting up the stream.

This method is always called exactly once in the lifetime of a conduit.

beginChunk

public void beginChunk()

Description copied from interface: ScriptConduit

Called before a each set of scripts that are to be sent.

sendScript

public void sendScript(java.lang.String script)

Description copied from interface: ScriptConduit

Write a script to remote side.

Parameters:

script - The script to write

endChunk

public void endChunk()

Description copied from interface: ScriptConduit

Called after each set of scripts when they have been sent.

endStreamAndChunk

public void endStreamAndChunk()
                       throws java.io.IOException

Description copied from interface: ScriptConduit

Called when we are shutting the stream down.

Throws:

java.io.IOException