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@Entity @Table(name="FOO") public class Foo { private UUID fooId; @OneToOne(cascade = CascadeType.ALL) @JoinColumn(name = "barId") private Bar bar; } @Entity @Table(name="BAR") public class Bar { private UUID barId; ...

@Entity @Table(name="FOO") public class Foo { private UUID fooId; @OneToMany @JoinTable(name="FOO_BAR", joinColumns = @JoinColumn(name="fooId"), inverseJoinColumns = @JoinColumn(name="barId", unique=true)) private ...

@Entity @Table(name="FOO") public class Foo { private UUID fooId; @OneToOne private Bar bar; } @Entity @Table(name="BAR") public class Bar { private UUID barId; //No corresponding mapping to Foo.class } Specifies a one-way relationship b...

Generic redirect to https: # Enable Rewrite engine RewriteEngine on # Check if URL does not contain https RewriteCond %{HTTPS} off [NC] # If condition is true, redirect to https RewriteRule (.*) https://%{SERVER_NAME}/$1 [R=301,L] Generic redirect to http: # Enable Rewrite engine Rewr...

Add the following directive before using any other mod_rewrite directive (RewriteRule, RewriteCond, RewriteBase or RewriteMap). RewriteEngine on By default the engine is turned off. mod_rewrite directives found while the engine is turned off are ignored. Enable it from within the virtual host co...

Important: Using the dynamic configuration files (.htaccess) is a big performance hit. When you have access to the static configuration file (httpd.conf or something similar) you should use that instead. In the static configuration file, allow dynamic configuration files to override "Filei...

Creating a chart that displays a static dataset is relatively simple. For example, if we have this array of objects as the data: var data = [ {title: "A", value: 53}, {title: "B", value: 12}, {title: "C", value: 91}, {title: "D", value: 24...

Debian/Ubuntu # apt-get update & apt-get -y upgrade # apt-get install cron Fedora/CentOS # yum -y update # yum install vixie-cron Arch # pacman --noconfirm -Syu # pacman -S cronie

To get a list of available serial ports use python -m serial.tools.list_ports at a command prompt or from serial.tools import list_ports list_ports.comports() # Outputs list of available serial ports from the Python shell.

Below are some tips to remember while we are writing a select query in MySQL that can help us and reduce our query time:- Whenever we use where in a large table we should make sure the column in where clause are index or not. Ex:- Select * from employee where user_id > 2000. user_id if ind...

Drawing text in canvas with your font from assets. Typeface typeface = Typeface.createFromAsset(getAssets(), "fonts/SomeFont.ttf"); Paint textPaint = new Paint(); textPaint.setTypeface(typeface); canvas.drawText("Your text here", x, y, textPaint);

Detailed instructions on getting axapta set up or installed.

A function is a named block of code which is used to define reusable code that should be easy to use. It is usually included inside a script to help reuse code (to avoid duplicate code) or distributed as part of a module to make it useful for others in multiple scripts. Scenarios where a function m...

Download the latest stable version from Activiti's website or you can check out the code from github and unzip to a directory of choice and then check out the readme.html that includes pointers to the docs and the release notes. The userguide ( docs/userguide/index.html ) includes instructions on ho...

After running your grammar .g4 file with ANTLR.jar you should have a number of files generated such as : 1.yourGrammarNameListener.py 2.yourGrammarNameParser.py 3.yourGrammarName.tokens ... To use these in a python project include the Python runtime in your workspace so any application you ar...

public interface ILogger { void Log(string message); } [Export(typeof(ILogger))] [ExportMetadata("Name", "Console")] public class ConsoleLogger:ILogger { public void Log(string message) { Console.WriteLine(message); } } [Export(typeof(IL...

You may need to render some content in view, which is specific to some environment only. To achieve this goal you can use Environment tag helper: <environment names="Development"> <h1>This is heading for development environment</h1> </environment> <envi...

In the old fashion way for collection null check List<Object> someObjects = methodGetList(); for (Object obj : someObjects) { if (obj == null) { continue; } doSomething(obj); } With the Objects.nonNull method and Java8 Stream API, we can do the above in this way: ...

Consider this example: public class ThreadTest implements Runnable { private boolean stop = false; public void run() { long counter = 0; while (!stop) { counter = counter + 1; } System.out.println("Counted " + counter);...

Suppose you have a long list of elements and you are only interested in every other element of the list. Perhaps you only want to examine the first or last elements, or a specific range of entries in your list. Python has strong indexing built-in capabilities. Here are some examples of how to achie...