Examples of org.openrdf.sail.memory.model.MemValueFactory

org.openrdf.sail.memory.model.MemValueFactory
A factory for MemValue objects that keeps track of created objects to prevent the creation of duplicate objects, minimizing memory usage as a result. @author Arjohn Kampman @author David Huynh @author James Leigh

      throw new IllegalStateException("sail has already been intialized");
    }


    logger.debug("Initializing MemoryStore...");


    MemValueFactory valueFactory = createValueFactory();
    currentSnapshot = 1;


    if (persist) {
      File dataDir = getDataDir();
      DirectoryLockManager locker = new DirectoryLockManager(dataDir);

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    return lf;
  }


  MemValueFactory createValueFactory() {
    return new MemValueFactory(bf, uf, lf);
  }

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    statementListLockManager = new ReadPrefReadWriteLockManager(trackLocks);
    txnLockManager = new ExclusiveLockManager(trackLocks);
    namespaceStore = new MemNamespaceStore();


    valueFactory = new MemValueFactory();
    statements = new MemStatementList(256);
    currentSnapshot = 1;


    if (persist) {
      dataFile = new File(getDataDir(), DATA_FILE_NAME);

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        Resource subj = (Resource)getConstantValue(sp.getSubjectVar());
        URI pred = (URI)getConstantValue(sp.getPredicateVar());
        Value obj = getConstantValue(sp.getObjectVar());
        Resource context = (Resource)getConstantValue(sp.getContextVar());


        MemValueFactory valueFactory = store.getValueFactory();


        // Perform look-ups for value-equivalents of the specified values
        MemResource memSubj = valueFactory.getMemResource(subj);
        MemURI memPred = valueFactory.getMemURI(pred);
        MemValue memObj = valueFactory.getMemValue(obj);
        MemResource memContext = valueFactory.getMemResource(context);


        if (subj != null && memSubj == null || pred != null && memPred == null || obj != null
            && memObj == null || context != null && memContext == null)
        {
          // non-existent subject, predicate, object or context

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Related Classes of org.openrdf.sail.memory.model.MemValueFactory

org.openrdf.model.BNode

org.openrdf.model.impl.BNodeImpl

org.openrdf.model.impl.ContextStatementImpl

org.openrdf.model.impl.LiteralImpl

org.openrdf.model.impl.MappedIllegalBNodeFactory

org.openrdf.model.impl.StatementImpl

org.openrdf.model.impl.URIImpl

org.openrdf.model.Literal

org.openrdf.model.URI

org.openrdf.sail.memory.MemoryStore

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