*/
package org.opendaylight.yangtools.concepts;
+import com.google.common.base.MoreObjects;
+import com.google.common.base.MoreObjects.ToStringHelper;
import java.util.concurrent.atomic.AtomicIntegerFieldUpdater;
/**
- * Utility registration handle. It is a convenience for register-style method
- * which can return an AutoCloseable realized by a subclass of this class.
- * Invoking the close() method triggers unregistration of the state the method
- * installed.
+ * Utility registration handle. It is a convenience for register-style method which can return an AutoCloseable realized
+ * by a subclass of this class. Invoking the close() method triggers unregistration of the state the method installed.
*/
-public abstract class AbstractRegistration implements AutoCloseable {
+public abstract class AbstractRegistration implements Registration {
private static final AtomicIntegerFieldUpdater<AbstractRegistration> CLOSED_UPDATER =
AtomicIntegerFieldUpdater.newUpdater(AbstractRegistration.class, "closed");
private volatile int closed = 0;
/**
- * Remove the state referenced by this registration. This method is
- * guaranteed to be called at most once. The referenced state must be
- * retained until this method is invoked.
+ * Remove the state referenced by this registration. This method is guaranteed to be called at most once.
+ * Referenced state must be retained until this method is invoked.
*/
protected abstract void removeRegistration();
/**
- * Query the state of this registration. Returns true if it was
- * closed.
+ * Query the state of this registration. Returns true if it was closed.
*
* @return true if the registration was closed, false otherwise.
*/
- protected final boolean isClosed() {
+ public final boolean isClosed() {
return closed != 0;
}
removeRegistration();
}
}
+
+ @Override
+ public final String toString() {
+ return addToStringAttributes(MoreObjects.toStringHelper(this).omitNullValues()).toString();
+ }
+
+ protected ToStringHelper addToStringAttributes(final ToStringHelper toStringHelper) {
+ return toStringHelper.add("closed", closed);
+ }
}