org.mojavemvc.views

Class StreamView

java.lang.Object

org.mojavemvc.views.StreamView

All Implemented Interfaces:

View

Direct Known Subclasses:

AbstractResponse, JSON, PlainText, XML

public abstract class StreamView
extends Object
implements View

An instance of this class obtains the servlet's OutputStream, and writes the payload to that stream. It sets the content type and content length before writing the content to the stream. This class does not use a buffer when writing to the OutputStream. This class is suitable for smaller entities.

Author:

Luis Antunes

Constructor Summary

Constructors

Constructor and Description
StreamView()

Method Summary

Methods

Modifier and Type	Method and Description
protected abstract String	getContentType() Gets the content type of the response to be streamed back to the requestor.
protected abstract byte[]	getPayload() Gets the content of the response to be streamed back to the requestor.
void	render(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) This method is invoked last in the sequence of steps involved in processing a request sent to the FrontController.

Methods inherited from class java.lang.Object

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

Constructor Detail

StreamView

public StreamView()

Method Detail

getContentType

protected abstract String getContentType()

Gets the content type of the response to be streamed back to the requestor.

Returns:

the content type of the response

getPayload

protected abstract byte[] getPayload()

Gets the content of the response to be streamed back to the requestor.

Returns:

the payload content

render

public void render(javax.servlet.http.HttpServletRequest request,
          javax.servlet.http.HttpServletResponse response)
            throws javax.servlet.ServletException,
                   IOException

Description copied from interface: View

This method is invoked last in the sequence of steps involved in processing a request sent to the FrontController. The servlet request can be used to set any attributes, then to obtain a RequestDispatcher for forwarding or including, or the servlet response may be used to send a redirect, for example.

Users should note that any exceptions thrown from this method are not guaranteed to be caught in the FrontController. They may escape to the requestor. Users should handle any exceptions inside the implementation of this method if different behaviour is desired.

Specified by:

render in interface View

Parameters:

request - the servlet request

response - the servlet response

Throws:

javax.servlet.ServletException

IOException