JPA et AppEngine

Salut;

Je tente de faire une appli en utilisant appengine.

Pour l'instant, il y a du struts 2, tiles 2. Je voudrais utiliser le datastore avec du jpa; mais je n'ai pas d'enregistrements.

Voici mes fichiers:

le persistence.xml

Code:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
<?xml version="1.0" encoding="UTF-8" ?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/persistence        http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"
	version="1.0">
	<persistence-unit name="transactions-optional">
		<provider>org.datanucleus.store.appengine.jpa.DatastorePersistenceProvider</provider>
		<properties>
			<property name="datanucleus.NontransactionalRead" value="true" />
			<property name="datanucleus.NontransactionalWrite" value="true" />
			<property name="datanucleus.ConnectionURL" value="appengine" />
		</properties>
	</persistence-unit>
</persistence>

le jdoconfig.xml

Code:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
<?xml version="1.0" encoding="UTF-8" ?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/persistence        http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"
	version="1.0">
	<persistence-unit name="transactions-optional">
		<provider>org.datanucleus.store.appengine.jpa.DatastorePersistenceProvider</provider>
		<properties>
			<property name="datanucleus.NontransactionalRead" value="true" />
			<property name="datanucleus.NontransactionalWrite" value="true" />
			<property name="datanucleus.ConnectionURL" value="appengine" />
		</properties>
	</persistence-unit>
	</persistence>

le dao

Code:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
 
import java.util.ArrayList;
import java.util.Date;
import javax.persistence.EntityManager;
import javax.persistence.Query;
 
 
import com.ejavasourcing.entity.Comment;
import com.ejavasourcing.service.EMFService;
 
public class CommentDaoImpl implements CommentDao {
 
	@Override
	public void addComment(String pseudo, String email, String comment,
							  String ip, Date dateOfComment) {
		synchronized (this) {
		EntityManager em = EMFService.get().createEntityManager();
 
		Comment myComment = new Comment();
		myComment.setPseudo(pseudo);
		myComment.setEmail(email);
		myComment.setComment(comment);
		myComment.setIp(ip);
		myComment.setDateOfComment(dateOfComment);
		 try {
			 em.persist(myComment);
 
		 } finally {
			 em.close();
		 }
		}
	}
 
	public ArrayList <Comment>  getAllComment(){
		EntityManager em = EMFService.get().createEntityManager();
		Query q = em.createQuery("select c from Comment c");      
		ArrayList <Comment> listOfComments = new ArrayList <Comment>(q.getResultList());
		em.close();
		return listOfComments;
	}	
 
}

la classe emfservice

Code:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
 
public class EMFService {
 
	private static final EntityManagerFactory emfInstance = Persistence.createEntityManagerFactory("transactions-optional");
 
	private EMFService() {
 
	}
 
	public static EntityManagerFactory get() {
		 return emfInstance;		
	}
 
 
}

l'entity

Code:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
mport java.io.Serializable;
import java.util.Date;
 
import javax.jdo.annotations.Persistent;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
 
 
@Entity (name = "Comment")
public class Comment implements Serializable {
	/**
         * 
         */
	private static final long serialVersionUID = 1L;
	@Id   
	@GeneratedValue(strategy = GenerationType.IDENTITY)
	private int idComment;
 
	private String pseudo;
 
	private String email;
 
	private String comment;
 
	private String ip;
 
	private Date dateOfComment = new Date();
 
	public Comment() {
 
	}
 
	public int getIdComment() {
		return idComment;
	}
 
	public void setIdComment(int idComment) {
		this.idComment = idComment;
	}
 
	public String getPseudo() {
		return pseudo;
	}
 
	public void setPseudo(String pseudo) {
		this.pseudo = pseudo;
	}
 
	public String getEmail() {
		return email;
	}
 
	public void setEmail(String email) {
		this.email = email;
	}
 
	public String getComment() {
		return comment;
	}
 
	public void setComment(String comment) {
		this.comment = comment;
	}
 
	public String getIp() {
		return ip;
	}
 
	public void setIp(String ip) {
		this.ip = ip;
	}
 
	public Date getDateOfComment() {
		return dateOfComment;
	}
 
	public void setDateOfComment(Date dateOfComment) {
		this.dateOfComment = dateOfComment;
	}
 
 
 
 
}

l'action

Code:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
import java.util.ArrayList;
import java.util.Date;
 
import javax.servlet.http.HttpServletResponse;
 
import com.ejavasourcing.dao.CommentDao;
import com.ejavasourcing.dao.CommentDaoImpl;
import com.ejavasourcing.entity.Comment;
import com.opensymphony.xwork2.ActionSupport;
 
public class CommentAction extends ActionSupport{
 
	/**
         * 
         */
	private static final long serialVersionUID = 999028149323880000L;
 
	private ArrayList <Comment> listOfComments = new ArrayList<Comment>();
	private String msg = "test";
 
	public String execute() throws Exception {
		System.out.println(" in ");
 
		CommentDao commentIDao = new CommentDaoImpl();
		Date dateOfComment = new Date();
		commentIDao.addComment("pseudo", "email", "comment", "ip", dateOfComment);
		listOfComments = commentIDao.getAllComment();
		msg ="row inserted";
		return SUCCESS;
	}
 
	public ArrayList<Comment> getListOfComments() {
		return listOfComments;
	}
 
	public void setListOfComments(ArrayList<Comment> listOfComments) {
		this.listOfComments = listOfComments;
	}
 
	public String getMsg() {
		return msg;
	}
 
	public void setMsg(String msg) {
		this.msg = msg;
	}
 
 
 
}

Merci d'avance
Je peux pas le tester en local en plus. Les tiles renvoient une excecption. C'est la loose:?