Examples of DBTripleRegistry

org.apache.marmotta.kiwi.persistence.registry.DBTripleRegistry

This class is used for keeping triples that are used by several transactions in parallel in sync. It allows a transaction that creates a triple to register this triple and make the triple ID available to other transactions to avoid duplicates. When a transaction commits, it then releases all its triple registrations.

The implementation is based on a very simple database table (REGISTRY). When a transaction creates a triple with a new ID, it temporarily inserts a row mapping the (subject,predicate,object,context) -> triple ID. Other transactions trying to create the same triple can then first lookup this ID. If they do so successfully, they will also insert a row to the registry. @author Sebastian Schaffert (sschaffert@apache.org)

                    }
                });




        if(config.isStatementExistanceCheck()) {
            registry = new DBTripleRegistry(store);
        }
    }

        anonIdGenerator = new Random();


        switch (store.getPersistence().getConfiguration().getRegistryStrategy()) {
            case DATABASE:
                log.info("KiWi Value Factory: database registry");
                registry        = new DBTripleRegistry(store);
                break;
            case CACHE:
                log.info("KiWi Value Factory: cache registry");
                registry        = new CacheTripleRegistry(store.getPersistence().getCacheManager());
                break;

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Examples of DBTripleRegistry

Examples of org.apache.marmotta.kiwi.persistence.registry.DBTripleRegistry

Examples of org.apache.marmotta.kiwi.persistence.registry.DBTripleRegistry