code: /*
   * Copyright (c) 2019 the Eclipse Milo Authors
   *
   * This program and the accompanying materials are made
   * available under the terms of the Eclipse Public License 2.0
   * which is available at https://www.eclipse.org/legal/epl-2.0/
   *
   * SPDX-License-Identifier: EPL-2.0
   */
  
  package org.eclipse.milo.opcua.sdk.server.api;
  
  import org.eclipse.milo.opcua.stack.core.types.builtin.DataValue;
  import org.eclipse.milo.opcua.stack.core.types.builtin.StatusCode;
  
  public interface DataItem extends MonitoredItem {
  
      /**
       * Set the latest sampled value.
       *
       * @param value the latest sampled value.
       */
      void setValue(DataValue value);
  
      /**
       * Apply a new {@link StatusCode} to the last value that passed the filter and then set the derived value.
       *
       * @param quality the {@link StatusCode} to apply.
       */
      void setQuality(StatusCode quality);
  
      /**
       * @return the rate to sample this item at.
       */
      double getSamplingInterval();
  
  }
  