Ejemplo n.º 1
0
  public synchronized void closeClass(Class entityClass) throws DatabaseException {

    checkOpen();
    String clsName = entityClass.getName();
    EntityMetadata entityMeta = checkEntityClass(clsName);

    PrimaryIndex priIndex = priIndexMap.get(clsName);
    if (priIndex != null) {
      /* Close the secondaries first. */
      DatabaseException firstException = null;
      for (SecondaryKeyMetadata keyMeta : entityMeta.getSecondaryKeys().values()) {

        String secName = makeSecName(clsName, keyMeta.getKeyName());
        SecondaryIndex secIndex = secIndexMap.get(secName);
        if (secIndex != null) {
          Database db = secIndex.getDatabase();
          firstException = closeDb(db, firstException);
          firstException = closeDb(secIndex.getKeysDatabase(), firstException);
          secIndexMap.remove(secName);
          deferredWriteDatabases.remove(db);
        }
      }
      /* Close the primary last. */
      Database db = priIndex.getDatabase();
      firstException = closeDb(db, firstException);
      priIndexMap.remove(clsName);
      deferredWriteDatabases.remove(db);

      /* Throw the first exception encountered. */
      if (firstException != null) {
        throw firstException;
      }
    }
  }
Ejemplo n.º 2
0
  /**
   * Opens any secondary indexes defined in the given entity metadata that are not already open.
   * This method is called when a new entity subclass is encountered when an instance of that class
   * is stored, and the EntityStore.getSubclassIndex has not been previously called for that class.
   * [#15247]
   */
  synchronized void openSecondaryIndexes(
      Transaction txn, EntityMetadata entityMeta, PrimaryOpenState priOpenState)
      throws DatabaseException {

    String entityClassName = entityMeta.getClassName();
    PrimaryIndex<Object, Object> priIndex = priIndexMap.get(entityClassName);
    assert priIndex != null;
    Class<Object> entityClass = priIndex.getEntityClass();

    for (SecondaryKeyMetadata secKeyMeta : entityMeta.getSecondaryKeys().values()) {
      String keyName = secKeyMeta.getKeyName();
      String secName = makeSecName(entityClassName, keyName);
      SecondaryIndex<Object, Object, Object> secIndex = secIndexMap.get(secName);
      if (secIndex == null) {
        String keyClassName = getSecKeyClass(secKeyMeta);
        /* RawMode: should not require class. */
        Class keyClass = SimpleCatalog.keyClassForName(keyClassName);
        openSecondaryIndex(
            txn,
            priIndex,
            entityClass,
            entityMeta,
            keyClass,
            keyClassName,
            secKeyMeta,
            makeSecName(entityClassName, secKeyMeta.getKeyName()),
            storeConfig.getSecondaryBulkLoad() /*doNotCreate*/,
            priOpenState);
      }
    }
  }
Ejemplo n.º 3
0
 private SecondaryKeyMetadata checkSecKey(EntityMetadata entityMeta, String keyName) {
   SecondaryKeyMetadata secKeyMeta = entityMeta.getSecondaryKeys().get(keyName);
   if (secKeyMeta == null) {
     throw new IllegalArgumentException(
         "Not a secondary key: " + makeSecName(entityMeta.getClassName(), keyName));
   }
   return secKeyMeta;
 }
Ejemplo n.º 4
0
  public synchronized void truncateClass(Transaction txn, Class entityClass)
      throws DatabaseException {

    checkOpen();

    /* Close primary and secondary databases. */
    closeClass(entityClass);

    String clsName = entityClass.getName();
    EntityMetadata entityMeta = checkEntityClass(clsName);

    /*
     * Truncate the primary first and let any exceptions propogate
     * upwards.  Then truncate each secondary, only throwing the first
     * exception.
     */
    String dbName = storePrefix + clsName;
    boolean primaryExists = true;
    try {
      env.truncateDatabase(txn, dbName, false);
    } catch (DatabaseNotFoundException ignored) {
      primaryExists = false;
    }
    if (primaryExists) {
      DatabaseException firstException = null;
      for (SecondaryKeyMetadata keyMeta : entityMeta.getSecondaryKeys().values()) {
        try {
          env.truncateDatabase(
              txn, storePrefix + makeSecName(clsName, keyMeta.getKeyName()), false);
        } catch (DatabaseNotFoundException ignored) {
          /* Ignore secondaries that do not exist. */
        } catch (DatabaseException e) {
          if (firstException == null) {
            firstException = e;
          }
        }
      }
      if (firstException != null) {
        throw firstException;
      }
    }
  }
Ejemplo n.º 5
0
  public Store(Environment env, String storeName, StoreConfig config, boolean rawAccess)
      throws DatabaseException {

    this.env = env;
    this.storeName = storeName;
    this.rawAccess = rawAccess;

    if (env == null || storeName == null) {
      throw new NullPointerException("env and storeName parameters must not be null");
    }
    if (config != null) {
      model = config.getModel();
      mutations = config.getMutations();
    }
    if (config == null) {
      storeConfig = StoreConfig.DEFAULT;
    } else {
      storeConfig = config.cloneConfig();
    }

    storePrefix = NAME_PREFIX + storeName + NAME_SEPARATOR;
    priIndexMap = new HashMap<String, PrimaryIndex>();
    secIndexMap = new HashMap<String, SecondaryIndex>();
    priConfigMap = new HashMap<String, DatabaseConfig>();
    secConfigMap = new HashMap<String, SecondaryConfig>();
    keyBindingMap = new HashMap<String, PersistKeyBinding>();
    sequenceMap = new HashMap<String, Sequence>();
    sequenceConfigMap = new HashMap<String, SequenceConfig>();
    deferredWriteDatabases = new IdentityHashMap<Database, Object>();

    if (rawAccess) {
      /* Open a read-only catalog that uses the stored model. */
      if (model != null) {
        throw new IllegalArgumentException("A model may not be specified when opening a RawStore");
      }
      DatabaseConfig dbConfig = new DatabaseConfig();
      dbConfig.setReadOnly(true);
      dbConfig.setTransactional(storeConfig.getTransactional());
      catalog =
          new PersistCatalog(
              null,
              env,
              storePrefix,
              storePrefix + CATALOG_DB,
              dbConfig,
              model,
              mutations,
              rawAccess,
              this);
    } else {
      /* Open the shared catalog that uses the current model. */
      synchronized (catalogPool) {
        Map<String, PersistCatalog> catalogMap = catalogPool.get(env);
        if (catalogMap == null) {
          catalogMap = new HashMap<String, PersistCatalog>();
          catalogPool.put(env, catalogMap);
        }
        catalog = catalogMap.get(storeName);
        if (catalog != null) {
          catalog.openExisting();
        } else {
          Transaction txn = null;
          if (storeConfig.getTransactional() && env.getThreadTransaction() == null) {
            txn = env.beginTransaction(null, null);
          }
          boolean success = false;
          try {
            DatabaseConfig dbConfig = new DatabaseConfig();
            dbConfig.setAllowCreate(storeConfig.getAllowCreate());
            dbConfig.setReadOnly(storeConfig.getReadOnly());
            dbConfig.setTransactional(storeConfig.getTransactional());
            catalog =
                new PersistCatalog(
                    txn,
                    env,
                    storePrefix,
                    storePrefix + CATALOG_DB,
                    dbConfig,
                    model,
                    mutations,
                    rawAccess,
                    this);
            catalogMap.put(storeName, catalog);
            success = true;
          } finally {
            if (txn != null) {
              if (success) {
                txn.commit();
              } else {
                txn.abort();
              }
            }
          }
        }
      }
    }

    /* Get the merged mutations from the catalog. */
    mutations = catalog.getMutations();

    /*
     * If there is no model parameter, use the default or stored model
     * obtained from the catalog.
     */
    model = catalog.getResolvedModel();

    /*
     * Give the model a reference to the catalog to fully initialize the
     * model.  Only then may we initialize the Converter mutations, which
     * themselves may call model methods and expect the model to be fully
     * initialized.
     */
    ModelInternal.setCatalog(model, catalog);
    for (Converter converter : mutations.getConverters()) {
      converter.getConversion().initialize(model);
    }

    /*
     * For each existing entity with a relatedEntity reference, create an
     * inverse map (back pointer) from the class named in the relatedEntity
     * to the class containing the secondary key.  This is used to open the
     * class containing the secondary key whenever we open the
     * relatedEntity class, to configure foreign key constraints. Note that
     * we do not need to update this map as new primary indexes are
     * created, because opening the new index will setup the foreign key
     * constraints. [#15358]
     */
    inverseRelatedEntityMap = new HashMap<String, Set<String>>();
    List<Format> entityFormats = new ArrayList<Format>();
    catalog.getEntityFormats(entityFormats);
    for (Format entityFormat : entityFormats) {
      EntityMetadata entityMeta = entityFormat.getEntityMetadata();
      for (SecondaryKeyMetadata secKeyMeta : entityMeta.getSecondaryKeys().values()) {
        String relatedClsName = secKeyMeta.getRelatedEntity();
        if (relatedClsName != null) {
          Set<String> inverseClassNames = inverseRelatedEntityMap.get(relatedClsName);
          if (inverseClassNames == null) {
            inverseClassNames = new HashSet<String>();
            inverseRelatedEntityMap.put(relatedClsName, inverseClassNames);
          }
          inverseClassNames.add(entityMeta.getClassName());
        }
      }
    }
  }