Config
Features
Config is a useful extension for properties files. It’s main features are:
- Using a set of standard converters
- Specifying default value for a property
- Saving all properties that were used into a file
Example
Note:
To run the example, you need to clone ActiveJ from GitHub:
$ git clone https://github.com/activej/activej
And import it as a Maven project. Check out tag v4.0-beta1. Before running the example, build the project.
These examples are located at activej -> examples -> core -> boot
$ git clone https://github.com/activej/activej
And import it as a Maven project. Check out tag v4.0-beta1. Before running the example, build the project.
These examples are located at activej -> examples -> core -> boot
An example of providing configs to your application with Config:
public final class ConfigModuleExample {
private static final String PROPERTIES_FILE = "example.properties";
public static void main(String[] args) {
Injector injector = Injector.of(ModuleBuilder.create()
.bind(Config.class).to(() -> Config.ofClassPathProperties(PROPERTIES_FILE))
.bind(String.class).to(c -> c.get("phrase"), Config.class)
.bind(Integer.class).to(c -> c.get(ofInteger(), "number"), Config.class)
.bind(InetAddress.class).to(c -> c.get(ofInetAddress(), "address"), Config.class)
.build());
System.out.println(injector.getInstance(String.class));
System.out.println(injector.getInstance(Integer.class));
System.out.println(injector.getInstance(InetAddress.class));
}
}