Java Doc for Html4kScriptConduit.java in  » Ajax » dwr » org » directwebremoting » dwrp » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Ajax » dwr » org.directwebremoting.dwrp 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.directwebremoting.dwrp.BaseScriptConduit
   org.directwebremoting.dwrp.Html4kScriptConduit

Html4kScriptConduit
public class Html4kScriptConduit extends BaseScriptConduit (Code)
A ScriptConduit for use with HTML/PRE wrapped Javascript output.

Scripts begin with an html, body and pre tag followed by 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 also sends 4k of whitespace data on each flush. This causes IE to recognize new content. This would be a significant network overhead so it is important to use gzip on the connection. This complexity has caused us to turn this conduit off at the moment.
author:
   Joe Walker [joe at getahead dot ltd dot uk]



Field Summary
final protected static  StringFOUR_K_FLUSH_DATA
    

Constructor Summary
public  Html4kScriptConduit(HttpServletResponse response, String batchId, ConverterManager converterManager, boolean jsonOutput)
    

Method Summary
public  booleanaddScript(ScriptBuffer scriptBuffer)
    
public  voidbeginStream()
    
public  voidendStream()
    
protected  StringgetOutboundMimeType()
    

Field Detail
FOUR_K_FLUSH_DATA
final protected static String FOUR_K_FLUSH_DATA(Code)
The slab of data we send to IE to get it to stream




Constructor Detail
Html4kScriptConduit
public Html4kScriptConduit(HttpServletResponse response, String batchId, ConverterManager converterManager, boolean jsonOutput) throws IOException(Code)
Simple ctor
Parameters:
  response - Used to flush output
Parameters:
  batchId - The id of the batch that we are responding to
Parameters:
  converterManager - How we convert objects to script
throws:
  IOException - If stream actions fail




Method Detail
addScript
public boolean addScript(ScriptBuffer scriptBuffer) throws IOException, MarshallException(Code)



beginStream
public void beginStream()(Code)



endStream
public void endStream()(Code)



getOutboundMimeType
protected String getOutboundMimeType()(Code)



Fields inherited from org.directwebremoting.dwrp.BaseScriptConduit
protected BasicAlarm alarm(Code)(Java Doc)
final protected String batchId(Code)(Java Doc)
protected ConverterManager converterManager(Code)(Java Doc)
protected boolean debugScriptOutput(Code)(Java Doc)
protected boolean jsonOutput(Code)(Java Doc)
protected PrintWriter out(Code)(Java Doc)
final protected HttpServletResponse response(Code)(Java Doc)

Methods inherited from org.directwebremoting.dwrp.BaseScriptConduit
abstract protected void beginStream()(Code)(Java Doc)
public void close(int timetoNextPoll) throws IOException(Code)(Java Doc)
abstract protected void endStream()(Code)(Java Doc)
protected boolean flush()(Code)(Java Doc)
public Alarm getErrorAlarm()(Code)(Java Doc)
abstract protected String getOutboundMimeType()(Code)(Java Doc)
public void setDebugScriptOutput(boolean debugScriptOutput)(Code)(Java Doc)

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