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EJB's - when to use Remote and/or local interfaces?

...be remote components and the only way to invoke them was to make a remote call, using RMI semantics and all the overhead it implies (a network call and object serialization for every method call). EJB clients had to pay this performance penalty even when collocated in the same virtual machine with t...
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Best way to allow plugins for a PHP application

... 5 = 9 4 * 5 = 20 Notes: For this example source code, you must declare all your plugins before the actual source code that you want to be extendable. I've included an example of how to handle single or multiple values being passed to the plugin. The hardest part of this is writing the actual d...
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How to delete from select in MySQL?

...n result sets. So you need to use IN, not = in your WHERE clause. Additionally, as shown in this answer you cannot modify the same table from a subquery within the same query. However, you can either SELECT then DELETE in separate queries, or nest another subquery and alias the inner subquery resul...
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How to pass html string to webview on android

... web view, after parsing I am creating four strings so that I could append all string to one view. I am able to get two views on the web view but not the first two strings. ...
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When and why would you seal a class?

... features, so that the original object cannot be "impersonated". More generally, I recently exchanged with a person at Microsoft, who told me they tried to limit the inheritance to the places where it really made full sense, because it becomes expensive performance-wise if left untreated. The sealed...
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How do you get a query string on Flask?

...ut since this answer correctly answers the question my Google search terms alluded to ('flask get request parameter') I'm up-voting it anyhow. I'm a pedant too, but I'm chalking this up to web mysticism. ???? – Michael Scheper Jan 13 '17 at 23:45 ...
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Why does TestInitialize get fired for every test in my Visual Studio unit tests?

...re that no tests are coupled. If you want to run methods before and after ALL tests, decorate relevant methods with the ClassInitialize and ClassCleanup attributes. Relevant information from the auto generated test-file in Visual Studio: You can use the following additional attributes as you writ...
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How can I get the intersection, union, and subset of arrays in Ruby?

I want to create different methods for a class called Multiset . 3 Answers 3 ...
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Why are there two build.gradle files in an Android Studio project?

...a "Top-level build file" where you can add configuration options common to all sub-projects/modules. If you use another module in your project, as a local library you would have another build.gradle file: <PROJECT_ROOT>\module\build.gradle For example in your top level file you can specify t...
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Postgresql query between date ranges

...lts where a date is in certain month and year. In other words I would like all the values for a month-year. 5 Answers ...