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Is it possible to read the value of a annotation in java?
...
Yes, if your Column annotation has the runtime retention
@Retention(RetentionPolicy.RUNTIME)
@interface Column {
....
}
you can do something like this
for (Field f: MyClass.class.getFields()) {
Column column = f.getAnno...
Best way to make Django's login_required the default
...leware may be your best bet. I've used this piece of code in the past, modified from a snippet found elsewhere:
import re
from django.conf import settings
from django.contrib.auth.decorators import login_required
class RequireLoginMiddleware(object):
"""
Middleware component that wraps ...
Activity has leaked ServiceConnection @438030a8 that was original
... only a presumption, but it looks like the kind of problem you'd be seeing if you were using the bindService method on it's own.
To ensure a service is kept running, even after the activity that started it has had its onDestroy method called, you should first use startService.
The android docs for...
PHP convert date format dd/mm/yyyy => yyyy-mm-dd [duplicate]
...isambiguated by looking
at the separator between the various components: if the separator is a
slash (/), then the American m/d/y is assumed; whereas if the
separator is a dash (-) or a dot (.), then the European d-m-y
format is assumed. Check more here.
Use the default date function.
$va...
Can I get CONST's defined on a PHP class?
...
You can use Reflection for this. Note that if you are doing this a lot you may want to looking at caching the result.
<?php
class Profile {
const LABEL_FIRST_NAME = "First Name";
const LABEL_LAST_NAME = "Last Name";
const LABEL_COMPANY_NAME = "Company"...
Chrome, Javascript, window.open in new tab
...olled by Internet Explorer users.
Opening pages using Window.open with a different window name will open in a new browser window like a popup, OR open in a new tab, if the user configured the browser to do so.
EDIT:
A more detailed explanation:
1. In modern browsers, window.open will open in a n...
Using Custom Domains With IIS Express
...plication root URL: http://dev.example.com
Click Create Virtual Directory (if you get an error here you may need to disable IIS 5/6/7/8, change IIS's Default Site to anything but port :80, make sure Skype isn't using port 80, etc.)
Optionally: Set the Start URL to http://dev.example.com
Open %USE...
Why is Maven downloading the maven-metadata.xml every time?
...le tells Maven to contact the remote repo (Nexus in my case, Maven Central if you're not using your own remote repo) any time Maven needs to retrieve a snapshot artifact during a build, checking to see if there's a newer copy. The metadata is required for this. If there is a newer copy Maven downl...
How to compare two floating point numbers in Bash?
...niently
This can be done more conveniently using Bash's numeric context:
if (( $(echo "$num1 > $num2" |bc -l) )); then
…
fi
Explanation
Piping through the basic calculator command bc returns either 1 or 0.
The option -l is equivalent to --mathlib; it loads the standard math library.
En...
数据结构与本地数据库 06：把卡片迁移到 SQLite · App Inventor 2 中文网
...编号 = SQLite1.SelectSQL("SELECT v FROM meta WHERE k=?",list("next_id"))
if length(已存编号) > 0 { 下个ID = max(下个ID, 已存编号[1] * 1) }
foreach 行 in 行们 {
listadd(卡片, makedict(pair("id", 行[1]), pair("question", 行[2]), pair("answer", 行[3]), pair("category", 行[4]), pa...