From 7b575cad05d18d32a341c7c1fef92b6b1021e670 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Roland=20H=C3=A4der?= <roland@mxchange.org>
Date: Wed, 20 May 2020 00:11:55 +0200
Subject: [PATCH] Continue: - updateUserData() was throwing an unchecked
 EJBException, now better the   well-known UserNotFoundException (maybe
 subject for renaming?) - re-added other business methods for checking of user
 existence. Please do NOT   invoke them from your web/Swing application as
 this causes a lot EJB remote   method invocations. - Instead you should
 implement a similar method in your application and have the   user list
 cached and checked against that cached list.
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Signed-off-by: Roland Häder <roland@mxchange.org>
---
 .../model/user/UserSessionBeanRemote.java     | 46 ++++++++++++++++++-
 1 file changed, 44 insertions(+), 2 deletions(-)

diff --git a/src/org/mxchange/jusercore/model/user/UserSessionBeanRemote.java b/src/org/mxchange/jusercore/model/user/UserSessionBeanRemote.java
index 7466736..1256a3d 100644
--- a/src/org/mxchange/jusercore/model/user/UserSessionBeanRemote.java
+++ b/src/org/mxchange/jusercore/model/user/UserSessionBeanRemote.java
@@ -59,8 +59,9 @@ public interface UserSessionBeanRemote extends Serializable {
 	 * <p>
 	 * @throws UserStatusConfirmedException If the user account is confirmed
 	 * @throws UserStatusLockedException If the user account is locked
+	 * @throws UserNotFoundException If the given User instance was not found
 	 */
-	User confirmAccount (final User user, final String baseUrl) throws UserStatusConfirmedException, UserStatusLockedException;
+	User confirmAccount (final User user, final String baseUrl) throws UserStatusConfirmedException, UserStatusLockedException, UserNotFoundException;
 
 	/**
 	 * Updates entity from given user instance and returns updated instance.
@@ -68,8 +69,10 @@ public interface UserSessionBeanRemote extends Serializable {
 	 * @param user User instance to update
 	 * <p>
 	 * @return Updated user instance
+	 * <p>
+	 * @throws UserNotFoundException If the given User instance is not found
 	 */
-	User updateUserData (final User user);
+	User updateUserData (final User user) throws UserNotFoundException;
 
 	/**
 	 * Returns a list of all users. This is mostly suitable for administrative
@@ -88,4 +91,43 @@ public interface UserSessionBeanRemote extends Serializable {
 	 */
 	User updateUserPersonalData (final User user);
 
+	/**
+	 * Checks if given user name is already used
+	 * <p>
+	 * @param userName User name to check
+	 * <p>
+	 * @return Whether given user name is found
+	 */
+	boolean ifUserNameExists (final String userName);
+
+	/**
+	 * Checks if given user exists. You should only use this method within the
+	 * EJB container as might cause a lot EJB method invocations and having a
+	 * similar method implemented on your web container/Swing or console side
+	 * with local cache is much better for overall performance.
+	 * <p>
+	 * @param user User to check
+	 * <p>
+	 * @return Whether the user exists
+	 */
+	boolean ifUserExists (final User user);
+
+	/**
+	 * Checks if the the given user's name is already registered
+	 * <p>
+	 * @param user User instance
+	 * <p>
+	 * @return Whether the user is already registered
+	 */
+	boolean isUserNameRegistered (final User user);
+
+	/**
+	 * Checks if the the given user's email address is already registered
+	 * <p>
+	 * @param user User instance
+	 * <p>
+	 * @return Whether the user is already registered
+	 */
+	boolean isEmailAddressRegistered (final User user);
+
 }
-- 
2.39.5