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Is it OK to use == on enu<em>mem>s in Java?
Is it OK to use == on enu<em>mem>s in Java, or do I need to use .equals() ? In <em>mem>y testing, == always works, but I'<em>mem> not sure if I'<em>mem> guaranteed of that. In particular, there is no .clone() <em>mem>ethod on an enu<em>mem>, so I don't know if it is possible to get an enu<em>mem> for which .equals() would return a diffe...
@UniqueConstraint annotation in Java
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To ensure a field value is unique you can write
@Colu<em>mem>n(unique=true)
String userna<em>mem>e;
The @UniqueConstraint annotation is for annotating <em>mem>ultiple unique keys at the table level, which is why you get an error when applying it to a field.
References (JPA TopLink):
@UniqueCon...
How to convert / cast long to String?
I just created sa<em>mem>ple BB app, which can allow to choose the date.
8 Answers
8
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What's the best way to cancel event propagation between nested ng-click calls?
Here's an exa<em>mem>ple. Let's say I want to have an i<em>mem>age overlay like a lot of sites. So when you click a thu<em>mem>bnail, a black overlay appears over your whole window, and a larger version of the i<em>mem>age is centered in it. Clicking the black overlay dis<em>mem>isses it; clicking the i<em>mem>age will call a function th...
How to auto<em>mem>atically start a service when running a docker container?
I have a Dockerfile to install <em>Mem>ySQL server in a container, which I then start like this:
11 Answers
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how to delete all co<em>mem><em>mem>it history in github? [duplicate]
I want to delete all co<em>mem><em>mem>it history but keep the code in its current state because, in <em>mem>y co<em>mem><em>mem>it history, there are too <em>mem>any unused co<em>mem><em>mem>its.
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Where to find the win32api <em>mem>odule for Python? [closed]
I need to download it for Python 2.7, but can't see<em>mem> to find it...
4 Answers
4
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How to iterate over argu<em>mem>ents in a Bash script
I have a co<em>mem>plex co<em>mem><em>mem>and that I'd like to <em>mem>ake a shell/bash script of. I can write it in ter<em>mem>s of $1 easily:
8 Answers
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cocoapods - 'pod install' takes forever
I was trying to update the existing pods with pod install co<em>mem><em>mem>and, but it takes forever to run.
19 Answers
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Difference between angle bracket < > and double quotes “ ” while including header files in C++? [dup
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It's co<em>mem>piler dependent. That said, in general using " prioritizes headers in the current working directory over syste<em>mem> headers. &a<em>mem>p;lt;&a<em>mem>p;gt; usually is used for syste<em>mem> headers. Fro<em>mem> to the specification (Section 6.10.2):
A prep...