brokermodel.java

this is a trade sale system realized by java. It can run some easy functions and has a good design p

package trader;
public interface BrokerModel { 
// Broker model state change listener registration methods
  /* -------------------------------------------------------------
   * Adds requester to the list of objects to be notified when an
   * object(Customer, Portfolio or Stock) in the broker model 
   * alters state   
   */
  public void addChangeListener(BrokerView bv)
    throws BrokerException;

// iteration 1 Customer segment broker model methods
// Customer segment state change methods
  /**-------------------------------------------------------------
   * Adds the Customer to the broker model 
   */ 
  public void addCustomer(Customer cust) 
    throws BrokerException;

  /**-------------------------------------------------------------
   * Deletes the customer from the broker model
   */
  public void deleteCustomer(Customer cust)
    throws BrokerException;

  /**-------------------------------------------------------------
   * Updates the customer in the broker model
   */
  public void updateCustomer(Customer cust)
    throws BrokerException;

// Customer segment state query methods
  /**-------------------------------------------------------------
   * Given an id, returns the Customer from the model
   */
  public Customer getCustomer(String id)
    throws BrokerException;


  /**-------------------------------------------------------------
   * Returns all customers in the broker model
   */
  public Customer[] getAllCustomers()
    throws BrokerException;

// Portfolio segment - TBD in future iteration
// Add Portfolio segment state change methods
// Add Portfolio segment state query methods

// Stock segment - TBD in future iteration
// Add Stock segment state change methods
// Add Stock segment state query methods
}