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Hibernate vs JPA vs JDO - pros and cons of each? [closed]
...o be considered based on such factors legacy code, integration, expertise, batch-heavy requirements, real-time performance etc. which may steer (or may not) approach towards different database technology stack.
– topchef
Jun 4 '10 at 16:04
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What does “Could not find or load main class” mean?
... I've encountered it a third time. I've run the program from a Windows 10 batch file, and put the .jar name in a variable (called with "-cp %jarname%;lib*"). I've mistakenly put an extra space at the end of the jarname, and it caused the error. Hat trick :)
– GregT
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How do I properly clean up Excel interop objects?
...s that cause an entire graph of objects to be promoted in the finalization queue. Such objects would not be released until the next garbage collection. However, if you are not using VSTO, you should be able to call GC.Collect() and GC.WaitForPendingFinalizers() just once.
I know that explicitly cal...
What is (functional) reactive programming?
...hem. But looking at the spirit of the thing, a program that polls an event queue at a fixed interval and dispatches any events found to functions (or threads) is less reactive (because it only attends to user input at a fixed interval). Again, it's the spirit of the thing here: one can imagine putti...
How to design a product table for many kinds of product where each product has many parameters
... application. Even if you have 600GB of product data you can process it in batches if you require data from every single row in this table.
Going further If you would like to improve the performance of the queries you can select certain operations like for e.g. reporting or global text search and p...
When is the thread pool used?
...nk: database access)
libuv has a default thread pool size of 4, and uses a queue to manage access to the thread pool - the upshot is that if you have 5 long-running DB queries all going at the same time, one of them (and any other asynchronous action that relies on the thread pool) will be waiting f...
How can you do anything useful without mutable state?
...s. I wrote a page here which provides immutable implementations of stacks, queues, leftist heaps, red-black trees, lazy lists. Not a single snippet of code contains any mutable state. To "mutate" a tree, I create a brand new one with new node I want -- this is very efficient because I don't need to ...
Clang vs GCC - which produces faster binaries? [closed]
...on-standard features and static warnings. In your own large project, not batch compiling other ppl's code, you're doing something wrong in your build system if compile time dominates link time. There's tools like ccache.samba.org that help if you do make clean often. Another issue with changing ...
Controlling fps with requestAnimationFrame?
...ly-fill is used) is that this will be more accurate as the setTimeout will queue an event immediately when the loop starts so that no matter how much time the remaining code will use (provided it doesn't exceed the timeout interval) the next call will be at the interval it represents (for pure rAF t...
Multiple working directories with Git?
...on to get worktree details", 2015-10-08, Git v2.7.0-rc0 -- merge listed in batch #7) extended the path manipulation in a mysterious way.
If it is unable to strip "/.git" from the path, then it instead reports the current working directory as the linked worktree's path:
if (!strbuf_strip_suffix(&...