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How to use concerns in Rails 4
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So I found it out by myself. It is actually a pretty simple but powerful concept. It has to do with code reuse as in the example below. Basically, the idea is to extract common and / or context specific chunks of code in order to clean up the models and avoid them...
How can you do paging with NHibernate?
...od, which indicates the index of the first item that you wish to get (basically the first data row in your page).
It also has a SetMaxResults(int i) method, which indicates the number of rows you wish to get (i.e., your page size).
For example, this criteria object gets the first 10 results of yo...
Can a program depend on a library during compilation but not runtime?
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A compile-time dependency is generally required at runtime. In maven, a compile scoped dependency will be added to the classpath on runtime (e.g. in wars they will be copied to WEB-INF/lib).
It is not, however, strictly required; for instance, we may compile...
Iterator Loop vs index loop [duplicate]
... including continue, break, return
}
Advantages: more generic, works for all containers (even the new unordered associative containers, can also use different strides (e.g. std::advance(it, 2));
Disadvantages: need extra work to get the index of the current element (could be O(N) for list or forw...
Windows path in Python
.../'. However in the long run the use of os.path is more convenient. It also allows you to use mydir and myfile as variables that you can easily modify.
– joaquin
Jun 1 '10 at 22:48
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How to read the value of a private field from a different class in Java?
...hrown are either SecurityExceptions (if the JVM's SecurityManager will not allow you to change a field's accessibility), or IllegalArgumentExceptions, if you try and access the field on an object not of the field's class's type:
f.get("BOB"); //will throw IllegalArgumentException, as String is of t...
How to change credentials for SVN repository in Eclipse?
I have Eclipse 3.4.2 installed on Windows with subclipse. Another developer added an SVN repository with his credentials and selected 'Save password'. Now every time I do anything with SVN his cached credentials are used. How can I change them to mine?
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Cannot import XSSF in Apache POI
...in your project, along with the dependencies for it
You can get a list of all the components and their dependencies on the POI website here.
What you probably want to do is download the 3.11 binary package, grab the poi-ooxml jar from it, and the dependencies in the ooxml-lib directory. Import the...
How to list npm user-installed packages?
How do I list the user-installed package ONLY in npm ? When I do npm -g list it outputs every package and their dependencies, which is not what I want.
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How to get names of enum entries?
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The code you posted will work; it will print out all the members of the enum, including the values of the enum members. For example, the following code:
enum myEnum { bar, foo }
for (var enumMember in myEnum) {
console.log("enum member: ", enumMember);
}
Will print the...