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  package org.apache.cayenne.dbsync.merge.context;
  
  /**
   * Represent a merge direction that can be either from the model to the db or from the db to the model.
   */
  public enum MergeDirection {
  
      /**
       * TO_DB Token means that changes was made in object model and should be reflected at DB
       */
      TO_DB("To DB"),
  
      /**
       * TO_MODEL Token represent database changes that should be allayed to object model
       */
      TO_MODEL("To Model");
  
      private String name;
  
      MergeDirection(String name) {
          this.name = name;
      }
  
      public String getName() {
          return name;
      }
  
      public boolean isToDb() {
          return (this == TO_DB);
      }
  
      public boolean isToModel() {
          return (this == TO_MODEL);
      }
  
      @Override
      public String toString() {
          return getName();
      }
  
      public MergeDirection reverseDirection() {
          switch (this) {
              case TO_DB:
                  return TO_MODEL;
              case TO_MODEL:
                  return TO_DB;
              default:
                  throw new IllegalStateException("Invalid direction: " + this);
          }
      }
  
  }
  