Package eu.webtoolkit.jwt

Class WMemoryResource

java.lang.Object

eu.webtoolkit.jwt.WObject

eu.webtoolkit.jwt.WResource

eu.webtoolkit.jwt.WMemoryResource

public class WMemoryResource
extends WResource

A resource which streams data from memory.

This is suitable for relatively small resources, which still require some computation.

If creating the data requires computation which you would like to post-pone until the resource is served, then you may want to directly reimplement WResource instead and compute the data on the fly while streaming.

Nested Class Summary

Nested classes/interfaces inherited from class eu.webtoolkit.jwt.WResource

WResource.DispositionType

Nested classes/interfaces inherited from class eu.webtoolkit.jwt.WObject

WObject.FormData

Constructor Summary

Constructors

Constructor	Description
WMemoryResource()	Create a new resource.
WMemoryResource(String mimeType)	Create a new resource.

Method Summary

Modifier and Type	Method	Description
byte[]	getData()	Returns the data.
String	getMimeType()	Returns the mime type.
protected void	handleRequest(WebRequest request, WebResponse response)	Handles a request.
void	setData(byte[] data)	Set data.
void	setMimeType(String mimeType)	Changes the mime type.

Methods inherited from class eu.webtoolkit.jwt.WResource

dataChanged, dataExceeded, dataReceived, generateUrl, getDispositionType, getInternalPath, getSuggestedFileName, getUrl, getVersion, incrementVersion, isInvalidAfterChanged, setChanged, setDispositionType, setInternalPath, setInvalidAfterChanged, setTakesUpdateLock, setUploadProgress, suggestFileName, suggestFileName, takesUpdateLock, write, write

Methods inherited from class eu.webtoolkit.jwt.WObject

getId, getObjectName, remove, setFormData, setObjectName, tr

Methods inherited from class java.lang.Object

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

Constructor Details

WMemoryResource

public WMemoryResource()

Create a new resource.

You must call setMimeType(String) and setData(byte[]) before using the resource.

WMemoryResource

public WMemoryResource(String mimeType)

Create a new resource.

You must call setData(byte[]) before using the resource.

Method Details

setData

public void setData(byte[] data)

Set data. The data is specified as bytes. If you want to set character data, you will need to encode the characters into bytes using the appropriate encoding.

Parameters:

data -

getMimeType

public String getMimeType()

Returns the mime type.

Returns:

the mime type.

setMimeType

public void setMimeType(String mimeType)

Changes the mime type.

This causes the resource to be refreshed in the browser by triggering WResource.dataChanged().

Parameters:

mimeType -

getData

public byte[] getData()

Returns the data.

Returns:

the data.

handleRequest

protected void handleRequest(WebRequest request,
 WebResponse response)
                      throws IOException

Description copied from class: WResource

Handles a request.

Reimplement this method so that a proper response is generated for the given request. From the request object you can access request parameters and whether the request is a continuation request. In the response object, you should set the mime type and stream the output data.

Specified by:

handleRequest in class WResource

Parameters:

request - The request information

response - The response object

Throws:

IOException