Examples of org.apache.ojb.broker.locking.LockManager

org.apache.ojb.broker.locking.LockManager

This interface declares the functionality of the OJB locking-api for support of pessimistic locking.

OJB allows to provide user defined implementations of this interface. To activate a user defined LockManager implementation it must be configured in the OJB.properties file.

All locks have to be reentrant, this means if you already have a lock for writing and you try to acquire write access again you will not be blocked by this first lock.

It's optional to support the lockTimeout and blockTimeout properties.

@see LockManagerInMemoryImpl @see LockManagerCommonsImpl @version $Id: LockManager.java,v 1.1.2.5 2005/12/21 22:25:32 tomdz Exp $

    {
        long timeout = conf.getInteger("LockTimeout", 60000);
        log.info("LockTimeout=" + timeout);
        try
        {
            LockManager lm = (LockManager) ClassHelper.newInstance(lockManagerClass);
            lm.setLockTimeout(timeout);
            lockManager = new LockManagerOdmgImpl(lm);
        }
        catch(Exception e)
        {
            throw new OJBRuntimeException("Can't setup odmg lock manager instance", e);

    {
        long timeout = conf.getInteger("LockTimeout", 60000);
        log.info("LockTimeout=" + timeout);
        try
        {
            LockManager lm = (LockManager) ClassHelper.newInstance(lockManagerClass);
            lm.setLockTimeout(timeout);
            lockManager = new LockManagerOdmgImpl(lm);
        }
        catch(Exception e)
        {
            throw new OJBRuntimeException("Can't setup odmg lock manager instance", e);

Examples of org.apache.ojb.broker.locking.LockManager

Related Classes of org.apache.ojb.broker.locking.LockManager