public class LockOptions {
    private final LockMode lockMode;
    private int timeOut;
    private String scope;
    ...
}

public interface Session ... {
    ...

    public interface LockRequest {
        public LockRequest setTimeOut(int timeout);
        ...
        public void lock(Object object);
    }

    public LockRqeust buildLockRequest(LockMode lockMode);
}

class SessionImpl ... {
    ...

    private class LockRequestImpl implements LockRequest {
        private final LockOptions lockOptions;

        private LockRequestImpl(LockMode lockMode) {
            lockOptions = new LockOptions( lockMode );
        }

        public LockRequest setTimeOut(int timeout) {
            lockOptions.setTimeOut( timeout );
            return this;
        }

        ...

        public void lock(Object object) {
            fireLock( new LockEvent( object, lockOptions ) );
        }

        public void lock(String entityName, Object object) {
            fireLock( new LockEvent( entityName, object, lockOptions ) );
        }
    }

    public LockRqeust buildLockRequest(LockMode lockMode) {
        return new LockRequestImpl( lockMode );
    }
}