Java : Cleaner.Cleanable with Examples
Published : January 18, 2024
Cleaner.Cleanable (Java SE 21 & JDK 21) with Examples.
You will find code examples on most Cleaner.Cleanable methods.
Summary
Cleanable represents an object and a cleaning action registered in a Cleaner.
Please see also : Cleaner
class Foo {
}
final var foo = new Foo();
final var cleaner = Cleaner.create();
final var cleanable = cleaner.register(foo, () -> {
System.out.println("Clean!");
final var current = Thread.currentThread();
System.out.printf(" (thread id = %d, daemon = %b)%n",
current.threadId(), current.isDaemon());
});
System.out.println("-- start -- (thread id = " +
Thread.currentThread().threadId() + ")");
cleanable.clean();
// Result
// ↓
//-- start -- (thread id = 1)
//Clean!
// (thread id = 1, daemon = false)
Methods
void clean ()
Unregisters the cleanable and invokes the cleaning action.
class Foo {
}
final var foo = new Foo();
final var cleaner = Cleaner.create();
final var cleanable = cleaner.register(foo, () -> {
System.out.println("Clean!");
final var current = Thread.currentThread();
System.out.printf(" (thread id = %d, daemon = %b)%n",
current.threadId(), current.isDaemon());
});
System.out.println("-- start -- (thread id = " +
Thread.currentThread().threadId() + ")");
cleanable.clean();
// Result
// ↓
//-- start -- (thread id = 1)
//Clean!
// (thread id = 1, daemon = false)
Related posts
- API Examples