Hi, Here is the image tag at the generated page's source <img src=" ./charttestpage.chart:chart/200/150<http://localhost:8089/rcd/reports/charttestpage.chart:chart/200/150> "/> This line means, a chart event with parameters of width=200, and height=150 is to be fired. As a result of this event, onChart() (which is the event handler for Chart event) will return a StreamResponse. Isn't this response returned to client (browser) automatically? Should i add some other handler to redirect the response to client?
Note: Used the component and page at http://wiki.apache.org/tapestry/Tapestry5HowToCreateGenericGraphComponent wiki example class without modification . Tapestry 5.1.0.5 is used. Thanks, Ruksen On Fri, Aug 27, 2010 at 3:50 PM, Thiago H. de Paula Figueiredo < thiag...@gmail.com> wrote: > On Fri, 27 Aug 2010 09:41:21 -0300, ruksen inanir <ruksenina...@gmail.com> > wrote: > > Hi, >> Isn't the onActivate() method's return type void? >> > > Absolutetly no. See > http://tapestry.apache.org/tapestry5.1/guide/pagenav.html. > > > Should you get the >> outputStream and out the response to the stream in the onActivate() ? >> > > You can do that. That's what I do in these scenarios: I create a page just > for returning dynamic charts, for example. > > > How is the response handled which onChart() method returns at the example >> http://wiki.apache.org/tapestry/Tapestry5HowToCreateGenericGraphComponent? >> > > Every event has an URL. That example feeds this URL into the src attribute > of an <img> tag. > > > Should I do something explicitly to handle this response, in the example >> there is no code which seems to handle this response. In the .tml of example >> >> <t:chart width="200" height="150" chart="lineChart"/> >> >> this line creates a component with specified width and height and the data >> from lineChart. Then onChart() of the component is called which in turn >> returns StreamResponse. To the this point everything seems rigth but, this >> response is not handled. >> > > Try requesting the image URL by hand and please post the result. > > > How is this response handled? Should i do something else to handle the >> StreamReponse to make the image appear on the page. ( >> StreamResponse holds the the stream of a JFreeChart Image) >> > > Just have an <img> tag pointing to the URL that generates images, be it a > page or component event or a Tapestry page. > > > -- > Thiago H. de Paula Figueiredo > Independent Java, Apache Tapestry 5 and Hibernate consultant, developer, > and instructor > Owner, Ars Machina Tecnologia da Informação Ltda. > http://www.arsmachina.com.br > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org > For additional commands, e-mail: users-h...@tapestry.apache.org > >
