Examples with FlushProcess org.datanucleus.flush.FlushProcess used on opensource projects

Example 1 with FlushProcess

use of org.datanucleus.flush.FlushProcess in project datanucleus-core by datanucleus.

the class ExecutionContextImpl method flushInternal.

/**
 * This method flushes all dirty, new, and deleted instances to the datastore.
 * @param flushToDatastore Whether to ensure any changes reach the datastore
 *     Otherwise they will be flushed to the datastore manager and leave it to
 *     decide the opportune moment to actually flush them to the datastore
 * @throws NucleusOptimisticException when optimistic locking error(s) occur
 */
public void flushInternal(boolean flushToDatastore) {
    if (!flushToDatastore && dirtyOPs.isEmpty() && indirectDirtyOPs.isEmpty()) {
        // Nothing to flush so abort now
        return;
    }
    if (!tx.isActive()) {
        // Non transactional flush, so store the ids for later
        if (nontxProcessedOPs == null) {
            nontxProcessedOPs = new HashSet<>();
        }
        nontxProcessedOPs.addAll(dirtyOPs);
        nontxProcessedOPs.addAll(indirectDirtyOPs);
    }
    flushing++;
    try {
        if (flushToDatastore) {
            // Make sure flushes its changes to the datastore
            tx.preFlush();
        }
        // Retrieve the appropriate flush process, and execute it
        FlushProcess flusher = getStoreManager().getFlushProcess();
        List<NucleusOptimisticException> optimisticFailures = flusher.execute(this, dirtyOPs, indirectDirtyOPs, operationQueue);
        if (flushToDatastore) {
            // Make sure flushes its changes to the datastore
            tx.flush();
        }
        if (optimisticFailures != null) {
            // Throw a single NucleusOptimisticException containing all optimistic failures
            throw new NucleusOptimisticException(Localiser.msg("010031"), optimisticFailures.toArray(new Throwable[optimisticFailures.size()]));
        }
    } finally {
        if (NucleusLogger.PERSISTENCE.isDebugEnabled()) {
            NucleusLogger.PERSISTENCE.debug(Localiser.msg("010004"));
        }
        flushing--;
    }
}