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Should services always return DTOs, or can they also return domain models?

...s being read-only, the objects themselves aren't truly read-only (i.e. immutable). What I mean is that it doesn't happen in practice (at least in my experience). To update a domain object the Interface Layer would have to either a) reference the domain object's repository, or b) call back into the A...
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PUT vs. POST in REST

...ey are completely similar. Think of it as inserting the same row in the DB table (/expense-reports) with auto-incremented primary key. Data remains the same, key (URI in this case) is generated by server and is different for every other insert (request). So, POST effect can be idempotent, but also m...
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Unicode equivalents for \w and \b in Java regular expressions?

... talk about whitespace properly is super-annoying. Consider the following table. For each of those code points, there is both a J-results column for Java and a P-results column for Perl or any other PCRE-based regex engine: Regex 001A 0085 00A0 2029 J...
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What is the difference between RDF and OWL? [closed]

...ng the apparatus to define the components of your triple using formal computable first order description logic. That is what posters here mean by when they talk about "semantic richness". Thirdly, it's important to realise that in OWL-Full (for OWL 1) rdfs:class and owl:class are equivalent and i...
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C++ IDE for Linux? [closed]

...ects my personal opinion only! EDIT: what a pity that SOF doesn't support tables, so I have to write in paragraphs ... Eclipse Galileo with CDT Plugin Pros: reasonable fast also supports Java, Perl(with E.P.I.C plugin) commonly used and well maintained also available for other OS flavours (Wind...
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OceanBase使用libeasy原理源码分析:服务器端 - 数据库(内核) - 清泛网 - ...

...回调函数分别为easy_connection_on_readable,easy_connection_on_writable和easy_connection_on_timeout_conn(注意,仅仅是初始化,还没有激活) 6. 激活该连接的read_watcher(即让该连接所属的IO线程的event loop监听这个连接的读事件), 设置其回调函数为e...
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What and where are the stack and heap?

... over). The simplicity of a stack is that you do not need to maintain a table containing a record of each section of allocated memory; the only state information you need is a single pointer to the end of the stack. To allocate and de-allocate, you just increment and decrement that single pointe...
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Difference between MEAN.js and MEAN.io

... is the one between MEAN.io and MEAN.js in a more readable format <table border="1" cellpadding="10"><tbody><tr><td valign="top" width="33%"><br><br><h1>MeanJS.org. provides these benefits that MEAN.io. doesn't</h1><br><br><b>Hel...
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Are there good reasons not to use an ORM? [closed]

...o make a lot of difference to your TCO. For a first approximation, 98% portable is just as good as 100% portable, and far better than convoluted or poorly performing solutions to work around the limits of an ORM. I have seen the former approach work well on a very large (100's of staff-years) J2EE...
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How does the compilation/linking process work?

...ct files produced by the compiler and produces either a library or an executable file. Preprocessing The preprocessor handles the preprocessor directives, like #include and #define. It is agnostic of the syntax of C++, which is why it must be used with care. It works on one C++ source file at a ...