Re: How to handle trigger from database.
Re: How to handle trigger from database.
- Subject: Re: How to handle trigger from database.
- From: "Colin" <email@hidden>
- Date: Mon, 20 Jun 2005 16:13:03 -0400
This type of functionality is not possible, unfortunately. It is not a limitation within WebObjects however, but with all web servers.
Being a web-application server, Web Objects can not proactively contact a web browser client. WO does not know about its clients and can not therefore send messages to them; rather it only responds to their requests. The client would have to initiate a request to the server in order for the client to detect a change in the data.
-c
---------- Original Message ----------------------------------
From: Theodore Petrosky <email@hidden>
Date: Mon, 20 Jun 2005 12:37:23 -0700 (PDT)
>I have a cocoa app that uses that c libraries (libpq)
>to talk to a postgresql server. I have been toying
>with webobject over the last year to see if talking to
>the backend was doable. I am happy with the results.
>
>I am starting a new example that has me stumped. I
>have triggers on the database such that if a given row
>is updated, the database will generate a notification
>to any client that is looking at that row.
>
>Is this kind of functionality doable with WebObjects?
>If a client in webobjects is looking at a row of data,
>and an update comes from my cocoa app, I want the
>webobjects page to know.
>
>Ted
>
>
>
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