Hi Nayantara, Where can I find the scope of this project? Are we planning on decomposing queries in future or not?
Also when handling stream as you may already know there are stream definitions in databridge level and also Siddhi level. Inside a execution plan we map a databridge definition to Siddhi definition and vise versa. I suppose that is what you are trying to do with stream name and stream definition attributes in properties window. If that is the case I suggest we have the parameters as 'CEP Stream ID' and 'Siddhi Stream ID' apart from 'Definition' and 'import/export/temporary'. If it isn't the case please explain. Thanks, /Tishan On Wed, Jun 8, 2016 at 11:39 AM, Malaka Silva <[email protected]> wrote: > Hi Nayantara > , > > With this GUI can we create queries on demand or should be predefined? > > On Wed, Jun 8, 2016 at 11:01 AM, Nayantara Jeyaraj <[email protected]> > wrote: > >> I am currently working on the Design and Implementation of the Siddhi >> Visual Editor for WSO2's CEP. The tasks completed and on-going have been >> listed out below. Your input will be appreciated. >> >> The interface will consist of a Toolbox/palette, a canvas and a >> Properties panel that appears upon clicking the toolbar icon of each >> element. >> >> *Tasks completed:* >> >> - >> >> Functionality that enables dragging an object from the palette and >> dropping it onto the canvas. >> - >> >> Permitting the Creation of multiple connections between anchors from >> varied sources and storing data in an array regarding the connections for >> further utilization. >> - >> >> Deleting Connections along with the parent element. >> >> *Currently working on:* >> >> - >> >> Changing the property attributes such as stream name and stream >> definition of dropped elements (Stream name will be displayed on the >> respective icon when saved). >> >> *Eg:* >> >> from TempStream >> >> select roomNo, temp >> >> insert into RoomTempStream; >> >> >> *The toolbar will hold:* >> >> 1. A stream icon >> >> 2. A query icon >> >> Once a stream has been dragged on to the canvas, the >> type(import/export/temporary) can be selected in the properties panel and >> thereafter it will be validated against the available schema and >> dropped(The validation part has not been done yet). Then a query can >> consume one or more event streams and generate a new event stream from >> them. >> >> *A Tempstream will be created with the following attributes:* >> >> define stream TempStream(deviceID long, roomNo int, temp double); >> >> So when the event stream icon is dropped onto the canvas, the properties >> panel for that event stream appears permitting the set up of the event >> stream. >> >> *Requested Stream Property Data in the properties panel:* >> >> Event stream type: import/ export/ temporary >> >> Event stream Name: <user_input> >> >> Event stream definition: <user_input> Derived from an existing stream >> >> Following this, a query can consume this stream. The query will not be >> decomposed into its minuscule details but will be merely considered as one >> unit. >> >> From the above example, the query filters out only the temperature of the >> respective room from the TempStream and generates a new RoomTempStream. >> >> >> The Visual Representation of the above ( Relevant icons will be used): >> >> tempStream -----> query -----> RoomTempStream >> >> >> Th following query types can be chosen when dealing with the query object >> >> 1. Pass-through (Prioritized at present) >> >> 2. Filters >> >> 3. Window >> >> 4. Joins >> >> >> Fig1: BasicUI developed to date >> >> >> >> >> _______________________________________________ >> Architecture mailing list >> [email protected] >> https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture >> >> > > > -- > > Best Regards, > > Malaka Silva > Senior Technical Lead > M: +94 777 219 791 > Tel : 94 11 214 5345 > Fax :94 11 2145300 > Skype : malaka.sampath.silva > LinkedIn : http://www.linkedin.com/pub/malaka-silva/6/33/77 > Blog : http://mrmalakasilva.blogspot.com/ > > WSO2, Inc. > lean . enterprise . middleware > http://www.wso2.com/ > http://www.wso2.com/about/team/malaka-silva/ > <http://wso2.com/about/team/malaka-silva/> > https://store.wso2.com/store/ > > Save a tree -Conserve nature & Save the world for your future. Print this > email only if it is absolutely necessary. > > _______________________________________________ > Architecture mailing list > [email protected] > https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture > > -- Tishan Dahanayakage Software Engineer WSO2, Inc. Mobile:+94 716481328 Disclaimer: This communication may contain privileged or other confidential information and is intended exclusively for the addressee/s. If you are not the intended recipient/s, or believe that you may have received this communication in error, please reply to the sender indicating that fact and delete the copy you received and in addition, you should not print, copy, re-transmit, disseminate, or otherwise use the information contained in this communication. Internet communications cannot be guaranteed to be timely, secure, error or virus-free. The sender does not accept liability for any errors or omissions.
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