Re: How to use wait() and notifyAll() in simple container object

From:

John Ersatznom <j.ersatz@nowhere.invalid>

Newsgroups:

comp.lang.java.programmer

Date:

Sun, 17 Dec 2006 14:44:08 -0500

Message-ID:

<em46jd$pke$2@aioe.org>

John Ersatznom wrote:

Lew wrote:

public class Container {

        private boolean value = false; // redundant assignment

        public Container(boolean value) {
                this.value = value;
        }

        public synchronized boolean get() {
                return value;
        }

        public synchronized void set(boolean value) {
                this.value = value;
        }

}

Looks like a mutable, synchronized Boolean. Might want to consider a
class name like SynchronizedBoolean. Might want to rename the
get()/set() methods, either to follow JavaBean conventions or to mimic
similar methods in java.lang.Boolean.

- Lew

Why not

public class Container<Foo> {
    private Foo contents;
    public Container (Foo initialContents) {
        contents = initialContents;
    }
    public synchronized Foo getContents () {
        return contents;
    }
    public synchronized setContents (Foo newContents) {
        contents = newContents;
    }
}

Container<Foo> fooHolder = new Container<Foo>(new Boolean(false));

Meh, make that last

Container<Boolean> booleanHolder = new Container<Boolean>(new
Boolean(false));