package org.lsst.ccs.config;
   
   import org.hibernate.annotations.Immutable;
   
   import javax.persistence.Embeddable;
   import javax.persistence.Embedded;
   import javax.persistence.EmbeddedId;
   import java.io.Serializable;
   
  /**
   * this is an explicit duplication of description of parameter as it is in the subsystem configuration.
   * all members are implicitly final! (no public mutator).
   */
  @Embeddable
  @Immutable
  public class ParameterBase implements Serializable, PathObject {
      private static final long serialVersionUID = -1173880414018123185L;
      // TODO: key to object
      @Embedded
      //@EmbeddedId : does not work!!
      ParameterPath /*@NotNull*/ path ;
      /**
       * type of parameter: class Name.
       * should have a valueOf(String) method
       */
      String /*@NotNull*/ typeName ;
      /**
       * default value as String
       * TODO: define a possible NULL value!
       */
      String /*@Nullable*/ defaultValue ;
  
      //////////////////////////// CONSTRUCTORS
  
      ParameterBase() {}
  
      public ParameterBase(String componentName, String codeName, String parameterName, String typeName, String defaultValue) {
          this( new ParameterPath(componentName,codeName,parameterName), typeName, defaultValue) ;
      }
  
      public ParameterBase(ParameterPath path, String typeName, String defaultValue) {
          //TODO: check for null!
          this.path = path;
          this.typeName = typeName;
          this.defaultValue = defaultValue;
      }
  //////////////////////// ACCESSORS/MUTATORS
  
      public String getComponentName() {
          return path.componentName;
      }
  
       void setComponentName(String componentName) {
          this.path.componentName = componentName;
      }
  
      public String getCodeName() {
          return path.codeName;
      }
  
       void setCodeName(String codeName) {
          this.path.codeName = codeName;
      }
  
      public String getParameterName() {
          return path.parameterName;
      }
  
       void setParameterName(String parameterName) {
          this.path.parameterName = parameterName;
      }
  
      public String getTypeName() {
          return typeName;
      }
  
       void setTypeName(String typeName) {
          this.typeName = typeName;
      }
  
      public String getDefaultValue() {
          return defaultValue;
      }
  
       void setDefaultValue(String defaultValue) {
          this.defaultValue = defaultValue;
      }
  
      //hack: do not know why it's working here and not on member!
      @EmbeddedId
      public ParameterPath getPath() {
          return path;
      }
  
       void setPath(ParameterPath path) {
          this.path = path;
      }
  //////////////////// IDENT METHODS
      //TODO use PathObject
 
     /**
      * special equals: works with all PathObjects
      * @param o
      * @return
      */
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;
         if (!(o instanceof PathObject)) return false;
 
         PathObject that = (PathObject) o ;
         if(! this.getPath().equals(that.getPath())) return false ;
 
         return true;
     }
 
     @Override
     public int hashCode() {
         return path.hashCode() ;
     }
 
     @Override
     public String toString() {
         return "{" +
                 "path=" + path.toString() +
                 '}';
     }
     
 }