package com.oreilly.jent.ejb.stateless;
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* from O'Reilly books does require permission. Answering a question by
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* Incorporating a significant amount of example code from this book into
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*
* We appreciate, but do not require, attribution. An attribution usually
* includes the title, author, publisher, and ISBN. For example:
*
* "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."
*
* If you feel your use of code examples falls outside fair use or the
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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;
}
}
}
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