org.snmp4j.agent.mo.lock.DefaultMOLockStrategy Maven / Gradle / Ivy
package org.snmp4j.agent.mo.lock;
import org.snmp4j.agent.MOQuery;
import org.snmp4j.agent.ManagedObject;
import org.snmp4j.agent.UpdatableManagedObject;
/**
* The DefaultMOLockStrategy implements a simple default locking strategy that
* requires a lock if a write access on a {@link ManagedObject} is intended or if the managed object
* accessed is an instance of {@link UpdatableManagedObject}.
* A managed object server that uses this lock strategy ensures that two concurrently received
* SET requests will not modify the same managed object at the same time with probably undefined result.
* In addition, managed objects that need to be updated regularly are protected against access while
*
*
* @author Frank Fock
* @since 2.4.0
*/
public class DefaultMOLockStrategy implements MOLockStrategy {
@Override
public boolean isLockNeeded(ManagedObject managedObjectLookedUp, MOQuery query) {
return query.isWriteAccessQuery() || (managedObjectLookedUp instanceof UpdatableManagedObject);
}
}