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How should equals and hashcode be implemented when using JPA and Hibernate
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Hibernate has a nice and long description of when / how to override equals() / hashCode() in documentation
The gist of it is you only need to worry about it if your entity will be part of a Set or if you're going to be detaching / attaching its instances. The latter is not that common. T...
Set title background color
In my android application I want the standard/basic title bar to change color.
13 Answers
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How to add calendar events in Android?
I'm just getting up to speed on Android, and today in a project meeting someone said that Android has no native calendar app so users just use whatever calendar app they like.
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Android LinearLayout Gradient Background
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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="50dip"
android:orientation="horizontal"
android:background="@drawable/main_header_selector">
</Li...
Setting HttpContext.Current.Session in a unit test
... if (HttpContext.Current == null)
throw new InvalidOperationException("HttpContext not available");
return new HttpContextWrapper(HttpContext.Current);
}
}
public static void SetCurrentContext(HttpContextBase context)
{
m_context = ...
How to check if a process id (PID) exists
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To check for the existence of a process, use
kill -0 $pid
But just as @unwind said, if you're going to kill it anyway, just
kill $pid
or you will have a race condition.
If you want to ignore the text output of kill and do something based on the exit code, you can
if ! kill...
Disable browser 'Save Password' functionality
...wsers but you should try setting autocomplete="off" on the form.
<form id="loginForm" action="login.cgi" method="post" autocomplete="off">
The easiest and simplest way to disable Form and Password storage prompts and prevent form data from being cached in session history is to use the au...
gradle build fails on lint task
I have a simple android project that I created with Android Studio 0.4.0.
I use Gradle 1.9 and Gradle Android Plugin 0.7. Yesterday I've added Jake Wharton's ButterKnife library in my gradle build script:
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Adding an identity to an existing column
I need to change the primary key of a table to an identity column, and there's already a number of rows in table.
19 Answe...
How can I get all the request headers in Django?
...hat has access to request should do.
Update
I need to access it in a Middleware class but when i iterate over it, I get a lot of values apart from HTTP headers.
From the documentation:
With the exception of CONTENT_LENGTH and CONTENT_TYPE, as given above, any HTTP headers in the request a...