...
| Code Block | ||
|---|---|---|
| ||
public interface Log {
public static final Log NULL = new Log() {
public void write(String messageToLog) {
// do nothing
}
};
void write(String messageToLog);
}
class Service {
private final Log log;
Service(){
this.log = Log.NULL;
}
// ...
}
|
Declaring the log reference final ensures that its value is assigned during initialization.
...