restriction.java

这是外国一个开源推理机

    String name, String descr)
    {
      return new ClassesOverSchemaRestriction(
        ++lastId,name,descr);
    }

  /**
   * Create an Instances Restriction.
   * @param id id of the restriction.
   * @param name name of the restriction.
   * @param descr description of the restriction.
   * @return the created restriction
   */
  static public Restriction createInstancesRestriction(int id, String name, String descr)
    {
      if ( id > lastId)
        lastId = id;
      return new InstancesRestriction(id,name,descr);
    }

  /**
   * Create an Instances Restriction.
   * @param name name of the restriction.
   * @param descr description of the restriction.
   * @return the created restriction
   */
  static public Restriction createInstancesRestriction(String name, String descr)
    {
      return new InstancesRestriction(++lastId,name,descr);
    }


  /**
   * Create a Properties Restriction.
   * @param id id of the restriction.
   * @param name name of the restriction.
   * @param descr description of the restriction.
   * @return the created restriction
   */
  static public Restriction createPropertiesRestriction(int id, String name, String descr)
    {
      if ( id > lastId )
        lastId = id;

      return new PropertiesRestriction(id,name,descr);}

  /**
   * Create a Properties Restriction.
   * @param name name of the restriction.
   * @param descr description of the restriction.
   * @return the created restriction
   */
  static public Restriction createPropertiesRestriction(String name, String descr)
    {

      return new PropertiesRestriction(++lastId,name,descr);
    }


  /**
   * Create a Pattern Restriction.
   * @param id id of the restriction.
   * @param name name of the restriction.
   * @param descr description of the restriction.
   * @return the created restriction
   */
  static public Restriction createPatternRestriction(int id, String name, String descr)
    {
      if ( id > lastId )
        lastId = id;
      return new PatternRestriction(id,name,descr);
    }

  /**
   * Create a Pattern Restriction.
   * @param name name of the restriction.
   * @param descr description of the restriction.
   * @return the created restriction
   */
  static public Restriction createPatternRestriction( String name, String descr)
    {
      return new PatternRestriction(++lastId,name,descr);
    }


 /**
   * Create a Query Restriction.
   * @param id id of the restriction.
   * @param name name of the restriction.
   * @param descr description of the restriction.
   * @return the created restriction
   */
  static public Restriction createQueryRestriction(int id, String name, String descr){
    if ( id > lastId )
      lastId = id;

    return new QueryRestriction(id,name,descr);
  }

 /**
   * Create a Query Restriction.
   * @param name name of the restriction.
   * @param descr description of the restriction.
   * @return the created restriction
   */
  static public Restriction createQueryRestriction(String name, String descr){

    return new QueryRestriction(++lastId,name,descr);
  }

  /**
   * Retrieve the set of all restrictions.
   * @return the set of all restrictions.
   */
  public static Set getRestrictions(){
    return restrictions;
  }


  /**
   * Gets the string representation of the type of the restriction. e.g. 1 is Repository.
   * @param type the type to be converted
   * @return the string representing the converted restriction type
   */
  public static String type2String(int type) {
    String result = ""+type;
    switch ( type ) {
      case (1) : result = "Repository"; break;
      case (2) : result = "Schema"; break;
      case (3) : result = "Classes"; break;
      case (4) : result = "Instances"; break;
      case (5) : result = "Properties"; break;
      case (6) : result = "Pattern"; break;
      case (7) : result = "Query"; break;
      case (8) : result = "ClassesOverSchema"; break;
    }
    return result+"Restriction";
  }

  /**
   * Converts the type to its integer value.
   * @param type the String representation of the Restriction type
   * @return 0 is returned if unknown type,
   * otherwise the int associated with the string type is returned.
   */
  public static int type2Int(String type){
    int result = 0;
    if (type.equals("RepositoryRestriction")) result =1 ;
    if (type.equals("SchemaRestriction")) result =2 ;
    if (type.equals("ClassesRestriction")) result =3 ;
    if (type.equals("InstancesRestriction")) result =4 ;
    if (type.equals("PropertiesRestriction")) result =5 ;
    if (type.equals("PatternRestriction")) result =6 ;
    if (type.equals("QueryRestriction")) result =7 ;
    if (type.equals("ClassesOverSchemaRestriction")) result =8 ;

    return result;
  }


  /**
   * Gets the restriction id.
   * @return the id of the restriction
   */
  public int getId() {
    return id;
  }

  /**
   * Sets restriction's id.
   * @param id the id to be set.
   */
  public void setId(int id) {
    this.id = id;
  }

  /**
   * Gets the restriction's description.
   * @return the restriction's description
   */
  public String getDescription() {
    return description;
  }

  /**
   * Sets the restriction's description.
   * @param descr the restriction's description
   */
  public void setDescription(String descr) {
    description = descr;
  }

  /**
   * Gets the restriciton's name.
   * @return the restriciton's name
   */
  public String getName() {
    return name;
  }

  /**
   * Sets the restriciton's name.
   * @param name the name to be set
   */
  public void setName(String name) {
    this.name = name;
  }

  /**
   * Gets restriction type.
   * @return type of the restriction
   */
  public int getType() {
    return type;
  }

  /**
   * Sets the type of the restriction.
   * @param type restriction type
   */
  public void setType(int type) {
    this.type = type;
  }

  /** Creates update queries over the restrictions, res_prop_restrs, query_restrs,
   *  pattern_restrs tables.
   * @return A list of update SQL queries, to be used to mirror the objects'
   *  properties from memory to an SQL repository.
   */
  public ArrayList toSql(Map idByLiteral, Map idByRes) throws NullParameterException,SecurityException  {
    if (idByRes == null )
      throw new NullParameterException("[ids by resources] map should not be [null].");
    if (idByLiteral == null )
      throw new NullParameterException("[ids by literals] map should not be [null].");

    ArrayList list = new ArrayList(3);
    StringBuffer query = new StringBuffer();
    query.append(SecuritySail.INSERT);
    query.append(SecuritySail.RESTRICTIONS_TABLE);
    query.append(SecuritySail.VALUES);
    query.append("(").append(id);
    query.append(",");
    query.append(type);
    query.append(",'");
    query.append(name);
    query.append("','");
    query.append(description).append("');");

    list.add(query.toString());

    return list;
  }// toSql()


	public void setUri(String uri) {
		this.uri = uri;
	}

	public String getUri() {
		return uri;
	}


} // RestrictionType class