com.whitestein.lsps.vaadin.ui.components

Interface ResourceDownloadHandler

All Superinterfaces:

com.vaadin.server.Resource, Serializable

All Known Implementing Classes:

UIFileResource, UIImage.UIFileResource

public interface ResourceDownloadHandler
extends com.vaadin.server.Resource

Provides download contents.

Author:

mvy

Method Summary

Modifier and Type	Method and Description
boolean	handleResourceDownload(com.vaadin.server.VaadinRequest req, com.vaadin.server.VaadinResponse resp) Writes the resource content to the response object.

Methods inherited from interface com.vaadin.server.Resource

getMIMEType

Method Detail

handleResourceDownload

boolean handleResourceDownload(com.vaadin.server.VaadinRequest req,
                               com.vaadin.server.VaadinResponse resp)
                        throws IOException

Writes the resource content to the response object. Should be used in UIComponent#handleConnectorRequest(VaadinRequest, VaadinResponse, String) when UIFileResource is used so that the request returns 404 error instead of server error.

DO *not* call with Vaadin session lock - blocks until the file is downloaded by the client.

Parameters:

req -

resp -

Returns:

true if there was any resource

Throws:

IOException