Пример #1
0
  /**
   * Set an attribute value for the given environment.
   *
   * @param targetEnv The target JE environment. May be null if the environment is not open.
   * @param attribute name/value pair
   */
  public void setAttribute(Environment targetEnv, Attribute attribute)
      throws AttributeNotFoundException, InvalidAttributeValueException {

    if (attribute == null) {
      throw new AttributeNotFoundException("Attribute cannot be null");
    }

    /* Sanity check parameters. */
    String name = attribute.getName();
    Object value = attribute.getValue();

    if (name == null) {
      throw new AttributeNotFoundException("Attribute name cannot be null");
    }

    if (value == null) {
      throw new InvalidAttributeValueException(
          "Attribute value for attribute " + name + " cannot be null");
    }

    try {
      if (name.equals(ATT_SET_READ_ONLY)) {
        openConfig.setReadOnly(((Boolean) value).booleanValue());
      } else if (name.equals(ATT_SET_TRANSACTIONAL)) {
        openConfig.setTransactional(((Boolean) value).booleanValue());
      } else if (name.equals(ATT_SET_SERIALIZABLE)) {
        openConfig.setTxnSerializableIsolation(((Boolean) value).booleanValue());
      } else {
        /* Set the specified attribute if the environment is open. */
        if (targetEnv != null) {

          EnvironmentMutableConfig config = targetEnv.getMutableConfig();

          if (name.equals(ATT_CACHE_SIZE)) {
            config.setCacheSize(((Long) value).longValue());
            targetEnv.setMutableConfig(config);
          } else if (name.equals(ATT_CACHE_PERCENT)) {
            config.setCachePercent(((Integer) value).intValue());
            targetEnv.setMutableConfig(config);
          } else {
            throw new AttributeNotFoundException("attribute " + name + " is not valid.");
          }
        } else {
          throw new AttributeNotFoundException("attribute " + name + " is not valid.");
        }
      }
    } catch (NumberFormatException e) {
      throw new InvalidAttributeValueException("attribute name=" + name);
    } catch (DatabaseException e) {
      throw new InvalidAttributeValueException("attribute name=" + name + e.getMessage());
    }
  }
Пример #2
0
 public static void setCachePercent(String cachePercent) {
   EnvironmentMutableConfig mutableConfig = Bdb.mutable.bdbEnv.getMutableConfig();
   mutableConfig.setCachePercent(Integer.parseInt(cachePercent));
   Bdb.mutable.bdbEnv.setMutableConfig(mutableConfig);
   Bdb.readOnly.bdbEnv.setMutableConfig(mutableConfig);
 }