info.magnolia.ui.vaadin.server

Class DownloadStreamResource

java.lang.Object

com.vaadin.server.StreamResource

info.magnolia.ui.vaadin.server.DownloadStreamResource

All Implemented Interfaces:

com.vaadin.server.ConnectorResource, com.vaadin.server.Resource, Serializable

public class DownloadStreamResource
extends com.vaadin.server.StreamResource

A subclass of StreamResource which makes sure #getStream always returns the same instance of DownloadStream.
(The superclass always creates a new instance of DownloadStream when calling #getStream, that way DownloadStream#params gets lost and makes it difficult to add custom response headers. See JIRA MGNLUI-3274.)

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.vaadin.server.StreamResource

com.vaadin.server.StreamResource.StreamSource

Field Summary

Fields inherited from interface com.vaadin.server.ConnectorResource

CONNECTOR_PATH

Constructor Summary

Constructors

Constructor and Description
DownloadStreamResource(com.vaadin.server.StreamResource.StreamSource streamSource, String filename) Creates a new stream resource for downloading from stream.

Method Summary

Modifier and Type	Method and Description
com.vaadin.server.DownloadStream	getStream() Returns the DownloadStream instance.

Methods inherited from class com.vaadin.server.StreamResource

equals, getBufferSize, getCacheTime, getFilename, getMIMEType, getStreamSource, hashCode, setBufferSize, setCacheTime, setFilename, setMIMEType, setStreamSource

Methods inherited from class java.lang.Object

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

Constructor Detail

DownloadStreamResource

public DownloadStreamResource(com.vaadin.server.StreamResource.StreamSource streamSource,
                              String filename)

Creates a new stream resource for downloading from stream.

Parameters:

streamSource - the source Stream.

filename - the name of the file.

Method Detail

getStream

public com.vaadin.server.DownloadStream getStream()

Returns the DownloadStream instance. Unlike the method of the superclass, this one doesn't create a new instance if it is already existing.

Specified by:

getStream in interface com.vaadin.server.ConnectorResource

Overrides:

getStream in class com.vaadin.server.StreamResource