Examples with IteratorTxnTracker org.apache.jena.dboe.transaction.txn.IteratorTxnTracker used on opensource projects

Example 1 with IteratorTxnTracker

use of org.apache.jena.dboe.transaction.txn.IteratorTxnTracker in project jena by apache.

the class DatasetGraphStorage method isolate.

private <T> Iterator<T> isolate(Iterator<T> iterator) {
    if (txn.isInTransaction() && txn instanceof TransactionalSystem) {
        // Needs TxnId to track.
        TransactionalSystem txnSystem = (TransactionalSystem) txn;
        TxnId txnId = txnSystem.getThreadTransaction().getTxnId();
        // Add transaction protection.
        return new IteratorTxnTracker<>(iterator, txnSystem, txnId);
    }
    return Iter.iterator(iterator);
}