The yFiles FLEX server API provides servlet classes that facilitate the most common tasks in a web diagramming application. This section briefly introduces these servlets.
LoadGraphServlet
is an abstract servlet class that allows to read a file from an input stream
and send it to the client.
Subclasses will only have to override the
getInputStream
method.
SaveGraphServlet
is an abstract servlet class that allows to save a graph that was send from the
client.
SaveGraphServlet uses either a parameter of the request or the request input
stream to read the data that is to be saved.
Subclasses only have to override the
createSaveStream
method.
DownloadServlet
is a ready-to-use servlet that can be used for saving a graph on the client.
The response is sent using the attachement content type, so that the client
application will show a download dialog.
DownloadServlet uses either a parameter of the request or the request input
stream to read the data that is to be saved on the client.