package org.lsst.ccs.config;
   
   import javax.persistence.MappedSuperclass;
   import java.io.Serializable;
   
   /**
    * Registers the date of a value change in engineering mode.
    * @author bamade
    */
  // Date: 21/05/12
  
      @MappedSuperclass
  public abstract class ValueEvent implements Serializable {
      private long time ;
      private String value ;
  
      protected ValueEvent() {
  
      }
  
      protected ValueEvent( long time, String value) {
          this.time = time;
          this.value = value;
      }
  
      public abstract long getId() ;
  
      public long getTime() {
          return time;
      }
  
       void setTime(long time) {
          this.time = time;
      }
  
      public String getValue() {
          return value;
      }
  
       void setValue(String value) {
          this.value = value;
      }
  }