FileDocCategorySizeDatePackage
ProfileManagerBean.javaAPI DocExample3878Thu Dec 15 21:08:46 GMT 2005com.oreilly.jent.ejb.stateless

ProfileManagerBean.java

package com.oreilly.jent.ejb.stateless;

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 * 
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 * 
 *   "Java Enterprise in a Nutshell, Third Edition, 
 *    by Jim Farley and William Crawford 
 *    with Prakash Malani, John G. Norman, and Justin Gehtland. 
 *    Copyright 2006 O'Reilly Media, Inc., 0-596-10142-2."
 *  
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import javax.ejb.SessionBean;
import javax.ejb.SessionContext;

import com.oreilly.jent.ejb.NoSuchPersonException;

public class ProfileManagerBean implements SessionBean {
  // Store session context
  private SessionContext mContext = null;

  public ProfileManagerBean() {}
  
  //--------------------------------------------------
  // Session bean methods
  //--------------------------------------------------

  // No need for us to activate anything in this bean, but we need to
  // provide an implementation.
  public void ejbActivate() {
    System.out.println("ProfileManagerBean activated.");
  }

  // Nothing to do on a remove for this bean.
  public void ejbRemove() {
    System.out.println("ProfileManagerBean removed.");
  }

  // No state to store on passivation.
  public void ejbPassivate() {
    System.out.println("ProfileManagerBean passivated.");
  }

  // Get context from container, store in a member variable.
  public void setSessionContext(SessionContext context) {
    System.out.println("ProfileManagerBean context set.");
    mContext = context;
  }

  // No-argument create() -- nothing to initialize in this case.
  public void ejbCreate() {
    System.out.println("ProfileManagerBean created.");
  }

  //--------------------------------------------------
  // Business methods
  //--------------------------------------------------
  
  // Get a profile for a named person.  Throws NoSuchPersonException if the
  // named person cannot be found in the persistent storage used to store
  // profile information.
  public Profile getProfile(String name) throws NoSuchPersonException {
      // First validate the provided name, throw a NoSuchPersonException
      // if it's not valid
      if (!validateName(name)) {
          throw new NoSuchPersonException("No user found matching name \"" +
                                          name + "\"");
      }
    // Here, we just create one of our serializable Profile objects and return
    // it (i.e., no persistence of profile data is provided).
    Profile profile = new com.oreilly.jent.ejb.stateless.Profile(name);
    return profile;
  }
  
  //--------------------------------------------------
  // Internal utility methods
  //--------------------------------------------------
  
  // Validate the name, return true if the name is in our list of 
  // profiles, false if not.
  private boolean validateName(String name) {
      // We don't maintain a list of profiles in this example 
      // implementation, so all names are valid except null ones.
      if (name != null) {
          return true;
      }
      else {
          return false;
      }
  }
}