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How to call a stored procedure from Java and JPA

I am writing a simple web application to call a stored procedure and retrieve some data. Its a very simple application, which interacts with client's database. We pass employee id and company id and the stored procedure will return employee details. ...
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What does the red exclamation point icon in Eclipse mean?

...fferent search results on the Internet about "red exclamation point icons" and "red exclamation mark decorators" and "red bang icons," no doubt because lots of plugins and programming-related tools use red exclamation point icons. So, to be clear, this is the one I mean: ...
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Creating an Android trial application that expires after a fixed time period

... run the app save the date/time to a file, database, or shared preferences and every time you run the app after that check to see if the trial period has ended. This is easy to circumvent because uninstalling and reinstalling will allow the user to have another trial period. The second approach is...
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What's the best way to model recurring events in a calendar application?

...s to support recurring events, but all the solutions I've come up with to handle these events seem like a hack. I can limit how far ahead one can look, and then generate all the events at once. Or I can store the events as repeating and dynamically display them when one looks ahead on the calendar, ...
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How do I rename a project in Xcode 5?

...le in Xcode 5! In the Project Navigator on the left side, click 2 x slowly and the Project file name will be editable. Type the new name. A sheet will appear with a warning and will list all the items Xcode 5 believes it should change. You can probably trust it, but you should inspect it. The list w...
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boost::flat_map and its performance compared to map and unordered_map

...haven't been able to find any performance comparisons. How does it compare and what are the best use cases for it? 2 Answer...
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How do you represent a graph in Haskell?

...n be shared any ADT that can contain a member of the type (including lists and trees) is really a DAG (Directed Acyclic Graph). The fundamental issue is that if you have values A and B, with A containing B and B containing A, then neither can be created before the other exists. Because Haskell is la...
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How to design a database for User Defined Fields?

...s a variant of #2). This answer is specifically tailored to this situation and the description of the data distribution and access patterns described. Pros: Because you indicate that some UDFs have values for a small portion of the overall data set, a separate table would give you the best perfor...
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Explanation of BASE terminology

...e system unavailable (or inconsistent). So you can see that 'availability' and 'partition tolerance' go hand in hand. There's more detail on this in this article. – Niels van der Rest Apr 14 '14 at 18:29 ...
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What are Long-Polling, Websockets, Server-Sent Events (SSE) and Comet?

... In the examples below the client is the browser and the server is the webserver hosting the website. Before you can understand these technologies, you have to understand classic HTTP web traffic first. Regular HTTP: A client requests a webpage from a server. The server...