Policy failures:

Code warning
- failed on resource ArticleManagerBean.java. Reason: The import javax.transaction.HeuristicMixedException is never used, line 15
- failed on resource ArticleManagerBean.java. Reason: The import javax.transaction.HeuristicRollbackException is never used, line 16
- failed on resource ArticleManagerBean.java. Reason: The import javax.transaction.NotSupportedException is never used, line 17
- failed on resource ArticleManagerBean.java. Reason: The import javax.transaction.RollbackException is never used, line 18
- failed on resource ArticleManagerBean.java. Reason: The import javax.transaction.SystemException is never used, line 19
... and more.  
Override reason:   
n

YACOSCore/ejbModule/org/yacos/core/article/ArticleManagerBean.java

@@ -148,8 +148,13 @@ public class ArticleManagerBean implements IArticleManager, Serializable {
 	}
 	     
 	public List<Article> getArticlesOfMember(Integer confId, String memberId){
-		//TODO
-		return null;
+		
+		Conference conf = em.find(Conference.class, confId);
+		User member = em.find(User.class, memberId);
+		Query query = em.createQuery("from Article a join a.pcMembers m WHERE a.conference = ? and m = ? ORDER BY a.title");
+		query.setParameter(1, conf);
+		query.setParameter(2, member);
+		return query.getResultList();
 	}
 	
 	public void assignArticleToPCMember(Integer articleId,String memberId){
@@ -171,13 +176,24 @@ public class ArticleManagerBean implements IArticleManager, Serializable {
 		//article.addPCMember(PCMember);
 	}
 	
+	
 	public void unassignArticleToPCMember(Integer articleId,String memberId){
+		try{
+			ut.begin();
 			Article article = this.getArticle(articleId);
 			User PCMember = em.find(User.class, memberId);
 			article.getPcMembers().remove(PCMember);
-		//article.removePCMember(PCMember);
+			ut.commit();	
 			this.updateArticle(article);
+		} catch (Exception e) {
+			try{
+				ut.rollback();
+			} catch (Exception e1) {
+				e1.printStackTrace();
 			}
+		}
+	}
+	
 	
 	public List<User> getArticlePCMembers(Integer articleId) {
 			Article article = this.getArticle(articleId);
@@ -192,6 +208,10 @@ public class ArticleManagerBean implements IArticleManager, Serializable {
 		article.delegateTo(referee,PCMember);
 	}
 
+	public void undelegateArticleToReferee(Integer articleId, String refereeId, String memberId){
+		//TODO
+	}
+	
 	
 
 	
@@ -242,11 +262,21 @@ public class ArticleManagerBean implements IArticleManager, Serializable {
 	public void updatePreference(Preference preference){
 		try{
 			ut.begin();
-			Preference persistedPreference = em.find(Preference.class, preference.getId());
-			persistedPreference.setPreferenceType(preference.getPreferenceType());
+			int articleId = preference.getArticle().getId();
+			String login = preference.getPcMember().getLogin();
+			PreferencePK preferenceid = new PreferencePK();
+			preferenceid.article = em.find(Article.class, articleId);
+			preferenceid.pcMember = em.find(User.class, login);
+			
+			Preference preference2 = em.find(Preference.class, preferenceid);
+			
+			em.remove(preference2);
+			em.persist(preference);
 			ut.commit();			
+			
 		} catch (Exception e) {
 			try{
+				e.printStackTrace();
 				ut.rollback();
 			} catch (Exception e1) {
 				e1.printStackTrace();

YACOSCore/ejbModule/org/yacos/core/article/IArticleManager.java

@@ -39,7 +39,9 @@ public interface IArticleManager {
 	
 	//delegation
 	public void assignArticleToPCMember(Integer articleId,String memberId);
+	public void unassignArticleToPCMember(Integer articleId,String memberId);
 	public void delegateArticleToReferee(Integer articleId, String refereeId, String memberId);
+	public void undelegateArticleToReferee(Integer articleId, String refereeId, String memberId);
 	
 	public boolean existsArticle(Integer articleId);
 	public boolean existsPreference(Preference preference);