[google-appengine] Migration from gae datastore java API to MySQL
I was wondering if it is possible to migrate from gae datastore (Java API) to MySQL... is there exist an bulkdownloader as for python. What is the best approach for doing this maybe using JPA?. please I need some help as it has been 5 days already looking for something before getting my hands dirty with code. Thank you very much in advanced. Regards. A desperate man. -- You received this message because you are subscribed to the Google Groups Google App Engine group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at http://groups.google.com/group/google-appengine?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
Re: [appengine-java] can't retreive one-to-may objetcs, JPA
What do you mean by need to access to the subjects field before closing the
em?. Do you mean, with the em, retreive the list of subjects and the add
them to the list of books?. (That's a workaround, but it is not efficient),
It's supposed to retreive the books completly with their subjetcs also, I
might be doing something wrong in the Entities.
Please soome help.
On 18 January 2011 00:30, Stephen Johnson onepagewo...@gmail.com wrote:
I don't do JPA, but If it's like JDO and you have lazy loading then don't
you need to access the subjects field before you close your entity manager
to get the subjects loaded? Just a thought.
On Mon, Jan 17, 2011 at 3:51 PM, kidowell crui...@gmail.com wrote:
I cannot retreive the Listsubjects from book. The save and update of a
book when a subject changes its fine, the problem is when retreiving books,
It doeesnt retreive their subjects. I need help. Here;s the code.
@Entity
@Table(name = book)
public class Book implements Serializable, IsSerializable {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Key id;
private String bookName;
private String comment;
@OneToMany(mappedBy=book,cascade = CascadeType.ALL)
private ListSubject subjects;
//setters and getters
--
@Entity
@Table(name = subject)
public class Subject implements Serializable, IsSerializable {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Key id;
private String name;
private int visible;
@Basic
private Text content;
@Basic
@ManyToOne
private Book book;
// setters and getters
public ListBook getBooks() throws GeneralException,
BookNotFoundException, NullParameterException {
entityManager = EMF.get().createEntityManager();
ListBook list;
try {
String sql = SELECT b FROM Book b;
list =
entityManager.createQuery(sql).getResultList(); //this list is
retreived with the books but without their subjects
} catch (Exception e) {
throw new GeneralException(Exception in method getBookes: +
e.getMessage());
} finally {
if (entityManager.isOpen()) {
entityManager.close();
}
}
if (list == null || list.isEmpty()) {
throw new BookNotFoundException(Book not found in method
getBookes);
}
return list;
}
Please, I need some help.
Cheers.
--
Kido.
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Re: [appengine-java] Re: The import com.google.appengine cannot be resolved
Yes, I did it, it is there in the link.
It works very nicely.
Cheers.
--
Kido.
On 8 January 2011 14:24, Didier Durand durand.did...@gmail.com wrote:
Hi,
I checked it: interesting!
Can we obtain the source code of it ?
didier
On Jan 8, 1:43 pm, Cesar Ruiz crui...@gmail.com wrote:
Hey Ddier, thank you for helping.
I found a better way, that having a same object in a separated way,
(Imagine
the case when I need to do the same for 20 objects).
The answer is here, it works sweetly.
http://blog.js-development.com/2010/02/gwt-app-engine-and-app-engine-...
Thank you very much.
On 8 January 2011 07:16, Didier Durand durand.did...@gmail.com wrote:
Hi,
You only have to move the source file of your class from src/package/
name/of/your/appl/client (where it is now) to src/package/name/of/your/
appl/server and change all the references of users of this classes to
new name : i.e. package.name.of.your.appl.client to
package.name.of.your.appl.srv.
Then your source code is ready to be compiled and you shouldn't get
any more complaint from GWT requiring the source code.
But, you'll still have to write the dto object that I mentionned
earlier and that Ikai Lan from Google also recommends in your new
question of this forum (http://groups.google.com/group/google-
appengine-java/browse_thread/thread/df0426ab46e25905#)
regards
didier
On Jan 7, 4:13 pm, Cesar Ruiz crui...@gmail.com wrote:
Indeed, I am using GWT, oh I understand what you're saying. But the
pojo
that will contain the Text attribute is in the client side (in the
same
package that the MainEntryPoint.java).
@Entity
@Table(name = book)
public class Book implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private String name;
private String uriPath;
private Text content;
getters and setters...
The method on the server side is:
public Book setBookContent(String bookName, String content) throws
GeneralException, BookNotFoundException, NullParameterException {
entityManager = EMF.get().createEntityManager();
Book book = null;
Text contentText = new Text(content);
try {
book = loadBookByName(bookName);
book.setContent(contentText); //here the pojo will have
the
Text attribute, but the pojo is in the client side
saveBook(book);
} catch (BookNotFoundException b) {
} finally {
entityManager.close();
}
return book;
}
Will I have to move the pojo Book in the server side. If yes can you
please
give me a hand, because the other day I tried and I couldnt.
Thank you for you help.
--
Kido.
On 7 January 2011 15:31, Didier Durand durand.did...@gmail.com
wrote:
I think that I understand through the words inheritance module:
aren't you using Google Web Toolkit ? (GWT)
If yes, you can't use the Text class in you front-end: you have to
use
a String in the front-end move it to the server via the GWT RPC and
then convert it to a Text in an annotated Pojo that you will then
be
able to store in the datastore
regards
didier
On Jan 7, 3:08 pm, Cesar Ruiz crui...@gmail.com wrote:
I realized the jar is included aproperly in the classpath, As it
does
it
automatically when choosing GAE as a server.
I also manually added the jar in the classpath, but nothing
happens
It still is throwing the error.
The import com.google.appengine cannot be resolved
[ERROR] Hint: Check the inheritance chain from your module; it
may
not
be
inheriting a required module or a module may not be adding its
source
path
entries properly
--
kido.
On 7 January 2011 15:04, Didier Durand durand.did...@gmail.com
wrote:
No, you don't need the source code: I use Text very often based
on
the
compiled version that is in the jar
appengine-api-1.0-sdk-1.3.8.jar
(for v 1.3.8 under Eclipse)
Just obtain from somebody else how to put this jar in you
classpath
and everything will be ok
btw, did you install the App Engine SDK in your Netbeans? When
properly done, it should take care of your classpath issue as
it
does
under Eclipse (classpath is set up properly for all needed jars
by
the
SDK there)
regards
didier
On Jan 7, 2:54 pm, Cesar Ruiz crui...@gmail.com wrote:
:( . When I see the com.google.appengine.api.datastore and
look
for
the
class Text, I try to open it but I it says: no source code.
I
think
I
need
the sourse code, rather than the .class.
I'm stuck
Re: [appengine-java] Re: The import com.google.appengine cannot be resolved
Sorry, I am using the same type (I wrote it wronly before). Im using com.google.appengine.api.datastore.Text. But it is always showing me the same error when compiling. It is somehow not finding the source code. I only provide it the Text.class not the .java. I do not know if this has anything to do. Another suggestion?. Thank you. On 7 January 2011 09:15, Didier Durand durand.did...@gmail.com wrote: Hi, Check http://code.google.com/appengine/docs/java/datastore/entities.html#Properties_and_Value_Types The type you want to use is probably : com.google.appengine.api.datastore.Text (i.e with api.datatstore, in the name) and not com.google.appengine.Text as you say regards didier On Jan 7, 8:52 am, kidowell crui...@gmail.com wrote: Hey I'm stuck at something, I just wanted to use the com.google.appengine.Text, so I can store an any sized String into the Datastore. But when compiling I receive this error: The import com.google.appengine cannot be resolved. I read in another forum a workaround when using com.google.appengine.Key. But they provided the code for the class Key, something I do not have for Text. I need some help. Thank you in advanced. -- Kido. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Cesar Ruiz. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: The import com.google.appengine cannot be resolved
I Compile with NetBeans. How can I set my clathpath manually, or if you know in NetBeans even better. regards. César Ruiz. On 7 January 2011 09:53, Didier Durand durand.did...@gmail.com wrote: Hi, If your classname is correct, then the problem most probably com from your classpath when compiling / editing Where do you compile ? In Eclipse ? If yes, you should publish your .classpath file (root directory of your project) regards didier On Jan 7, 9:41 am, Cesar Ruiz crui...@gmail.com wrote: Sorry, I am using the same type (I wrote it wronly before). Im using com.google.appengine.api.datastore.Text. But it is always showing me the same error when compiling. It is somehow not finding the source code. I only provide it the Text.class not the .java. I do not know if this has anything to do. Another suggestion?. Thank you. On 7 January 2011 09:15, Didier Durand durand.did...@gmail.com wrote: Hi, Check http://code.google.com/appengine/docs/java/datastore/entities.html#Pr. .. The type you want to use is probably : com.google.appengine.api.datastore.Text (i.e with api.datatstore, in the name) and not com.google.appengine.Text as you say regards didier On Jan 7, 8:52 am, kidowell crui...@gmail.com wrote: Hey I'm stuck at something, I just wanted to use the com.google.appengine.Text, so I can store an any sized String into the Datastore. But when compiling I receive this error: The import com.google.appengine cannot be resolved. I read in another forum a workaround when using com.google.appengine.Key. But they provided the code for the class Key, something I do not have for Text. I need some help. Thank you in advanced. -- Kido. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com google-appengine-java%2bunsubscr...@googlegroups.comgoogle-appengine-java%252bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Cesar Ruiz. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Cesar Ruiz. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: The import com.google.appengine cannot be resolved
:( . When I see the com.google.appengine.api.datastore and look for the class Text, I try to open it but I it says: no source code. I think I need the sourse code, rather than the .class. I'm stuck :(. On 7 January 2011 14:51, Didier Durand durand.did...@gmail.com wrote: Hi, Sorry: I work only on Eclipse. But, I guess other people of this forum knowing Netbeans will take over. Good luck! didier On Jan 7, 2:35 pm, Cesar Ruiz crui...@gmail.com wrote: I Compile with NetBeans. How can I set my clathpath manually, or if you know in NetBeans even better. regards. César Ruiz. On 7 January 2011 09:53, Didier Durand durand.did...@gmail.com wrote: Hi, If your classname is correct, then the problem most probably com from your classpath when compiling / editing Where do you compile ? In Eclipse ? If yes, you should publish your .classpath file (root directory of your project) regards didier On Jan 7, 9:41 am, Cesar Ruiz crui...@gmail.com wrote: Sorry, I am using the same type (I wrote it wronly before). Im using com.google.appengine.api.datastore.Text. But it is always showing me the same error when compiling. It is somehow not finding the source code. I only provide it the Text.class not the .java. I do not know if this has anything to do. Another suggestion?. Thank you. On 7 January 2011 09:15, Didier Durand durand.did...@gmail.com wrote: Hi, Check http://code.google.com/appengine/docs/java/datastore/entities.html#Pr. .. The type you want to use is probably : com.google.appengine.api.datastore.Text (i.e with api.datatstore, in the name) and not com.google.appengine.Text as you say regards didier On Jan 7, 8:52 am, kidowell crui...@gmail.com wrote: Hey I'm stuck at something, I just wanted to use the com.google.appengine.Text, so I can store an any sized String into the Datastore. But when compiling I receive this error: The import com.google.appengine cannot be resolved. I read in another forum a workaround when using com.google.appengine.Key. But they provided the code for the class Key, something I do not have for Text. I need some help. Thank you in advanced. -- Kido. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com google-appengine-java%2bunsubscr...@googlegroups.comgoogle-appengine-java%252bunsubscr...@googlegroups.com google-appengine-java%2bunsubscr...@googlegroups.comgoogle-appengine-java%252bunsubscr...@googlegroups.com google-appengine-java%252bunsubscr...@googlegroups.comgoogle-appengine-java%25252bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Cesar Ruiz. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com google-appengine-java%2bunsubscr...@googlegroups.comgoogle-appengine-java%252bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Cesar Ruiz. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Cesar Ruiz. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: The import com.google.appengine cannot be resolved
I realized the jar is included aproperly in the classpath, As it does it automatically when choosing GAE as a server. I also manually added the jar in the classpath, but nothing happens It still is throwing the error. The import com.google.appengine cannot be resolved [ERROR] Hint: Check the inheritance chain from your module; it may not be inheriting a required module or a module may not be adding its source path entries properly -- kido. On 7 January 2011 15:04, Didier Durand durand.did...@gmail.com wrote: No, you don't need the source code: I use Text very often based on the compiled version that is in the jar appengine-api-1.0-sdk-1.3.8.jar (for v 1.3.8 under Eclipse) Just obtain from somebody else how to put this jar in you classpath and everything will be ok btw, did you install the App Engine SDK in your Netbeans? When properly done, it should take care of your classpath issue as it does under Eclipse (classpath is set up properly for all needed jars by the SDK there) regards didier On Jan 7, 2:54 pm, Cesar Ruiz crui...@gmail.com wrote: :( . When I see the com.google.appengine.api.datastore and look for the class Text, I try to open it but I it says: no source code. I think I need the sourse code, rather than the .class. I'm stuck :(. On 7 January 2011 14:51, Didier Durand durand.did...@gmail.com wrote: Hi, Sorry: I work only on Eclipse. But, I guess other people of this forum knowing Netbeans will take over. Good luck! didier On Jan 7, 2:35 pm, Cesar Ruiz crui...@gmail.com wrote: I Compile with NetBeans. How can I set my clathpath manually, or if you know in NetBeans even better. regards. César Ruiz. On 7 January 2011 09:53, Didier Durand durand.did...@gmail.com wrote: Hi, If your classname is correct, then the problem most probably com from your classpath when compiling / editing Where do you compile ? In Eclipse ? If yes, you should publish your .classpath file (root directory of your project) regards didier On Jan 7, 9:41 am, Cesar Ruiz crui...@gmail.com wrote: Sorry, I am using the same type (I wrote it wronly before). Im using com.google.appengine.api.datastore.Text. But it is always showing me the same error when compiling. It is somehow not finding the source code. I only provide it the Text.class not the .java. I do not know if this has anything to do. Another suggestion?. Thank you. On 7 January 2011 09:15, Didier Durand durand.did...@gmail.com wrote: Hi, Check http://code.google.com/appengine/docs/java/datastore/entities.html#Pr. .. The type you want to use is probably : com.google.appengine.api.datastore.Text (i.e with api.datatstore, in the name) and not com.google.appengine.Text as you say regards didier On Jan 7, 8:52 am, kidowell crui...@gmail.com wrote: Hey I'm stuck at something, I just wanted to use the com.google.appengine.Text, so I can store an any sized String into the Datastore. But when compiling I receive this error: The import com.google.appengine cannot be resolved. I read in another forum a workaround when using com.google.appengine.Key. But they provided the code for the class Key, something I do not have for Text. I need some help. Thank you in advanced. -- Kido. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com google-appengine-java%2bunsubscr...@googlegroups.comgoogle-appengine-java%252bunsubscr...@googlegroups.com google-appengine-java%2bunsubscr...@googlegroups.comgoogle-appengine-java%252bunsubscr...@googlegroups.com google-appengine-java%252bunsubscr...@googlegroups.comgoogle-appengine-java%25252bunsubscr...@googlegroups.com google-appengine-java%2bunsubscr...@googlegroups.comgoogle-appengine-java%252bunsubscr...@googlegroups.com google-appengine-java%252bunsubscr...@googlegroups.comgoogle-appengine-java%25252bunsubscr...@googlegroups.com google-appengine-java%252bunsubscr...@googlegroups.comgoogle-appengine-java%25252bunsubscr...@googlegroups.com google-appengine-java%25252bunsubscr...@googlegroups.comgoogle-appengine-java%2525252bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Cesar Ruiz. -- You received this message because you are subscribed
Re: [appengine-java] Re: The import com.google.appengine cannot be resolved
Indeed, I am using GWT, oh I understand what you're saying. But the pojo
that will contain the Text attribute is in the client side (in the same
package that the MainEntryPoint.java).
@Entity
@Table(name = book)
public class Book implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private String name;
private String uriPath;
private Text content;
getters and setters...
The method on the server side is:
public Book setBookContent(String bookName, String content) throws
GeneralException, BookNotFoundException, NullParameterException {
entityManager = EMF.get().createEntityManager();
Book book = null;
Text contentText = new Text(content);
try {
book = loadBookByName(bookName);
book.setContent(contentText); //here the pojo will have the
Text attribute, but the pojo is in the client side
saveBook(book);
} catch (BookNotFoundException b) {
} finally {
entityManager.close();
}
return book;
}
Will I have to move the pojo Book in the server side. If yes can you please
give me a hand, because the other day I tried and I couldnt.
Thank you for you help.
--
Kido.
On 7 January 2011 15:31, Didier Durand durand.did...@gmail.com wrote:
I think that I understand through the words inheritance module:
aren't you using Google Web Toolkit ? (GWT)
If yes, you can't use the Text class in you front-end: you have to use
a String in the front-end move it to the server via the GWT RPC and
then convert it to a Text in an annotated Pojo that you will then be
able to store in the datastore
regards
didier
On Jan 7, 3:08 pm, Cesar Ruiz crui...@gmail.com wrote:
I realized the jar is included aproperly in the classpath, As it does it
automatically when choosing GAE as a server.
I also manually added the jar in the classpath, but nothing happens
It still is throwing the error.
The import com.google.appengine cannot be resolved
[ERROR] Hint: Check the inheritance chain from your module; it may not
be
inheriting a required module or a module may not be adding its source
path
entries properly
--
kido.
On 7 January 2011 15:04, Didier Durand durand.did...@gmail.com wrote:
No, you don't need the source code: I use Text very often based on the
compiled version that is in the jar appengine-api-1.0-sdk-1.3.8.jar
(for v 1.3.8 under Eclipse)
Just obtain from somebody else how to put this jar in you classpath
and everything will be ok
btw, did you install the App Engine SDK in your Netbeans? When
properly done, it should take care of your classpath issue as it does
under Eclipse (classpath is set up properly for all needed jars by the
SDK there)
regards
didier
On Jan 7, 2:54 pm, Cesar Ruiz crui...@gmail.com wrote:
:( . When I see the com.google.appengine.api.datastore and look for
the
class Text, I try to open it but I it says: no source code. I think
I
need
the sourse code, rather than the .class.
I'm stuck :(.
On 7 January 2011 14:51, Didier Durand durand.did...@gmail.com
wrote:
Hi,
Sorry: I work only on Eclipse. But, I guess other people of this
forum
knowing Netbeans will take over.
Good luck!
didier
On Jan 7, 2:35 pm, Cesar Ruiz crui...@gmail.com wrote:
I Compile with NetBeans. How can I set my clathpath manually, or
if
you
know
in NetBeans even better.
regards.
César Ruiz.
On 7 January 2011 09:53, Didier Durand durand.did...@gmail.com
wrote:
Hi,
If your classname is correct, then the problem most probably
com
from
your classpath when compiling / editing
Where do you compile ? In Eclipse ? If yes, you should publish
your .classpath file (root directory of your project)
regards
didier
On Jan 7, 9:41 am, Cesar Ruiz crui...@gmail.com wrote:
Sorry, I am using the same type (I wrote it wronly before).
Im
using
com.google.appengine.api.datastore.Text. But it is always
showing
me
the
same error when compiling.
It is somehow not finding the source code. I only provide it
the
Text.class
not the .java. I do not know if this has anything to do.
Another suggestion?.
Thank you.
On 7 January 2011 09:15, Didier Durand
durand.did...@gmail.com
wrote:
Hi,
Check
http://code.google.com/appengine/docs/java/datastore/entities.html#Pr.
..
The type you want to use is probably :
com.google.appengine.api.datastore.Text (i.e with
api.datatstore,
in
the name) and not com.google.appengine.Text as you say
regards
didier
On Jan 7, 8:52 am, kidowell crui...@gmail.com wrote:
Hey
Re: [appengine-java] JPA query(JPQL) setFirstResult() and setMaxResult() does not work
Are you using RCP when calling the list?. On 27 December 2010 07:01, Mike Guo gsun...@gmail.com wrote: hi All: i posted this problem on GWT forum but i think it's better to place here, as it has no related to GWT. see here: https://groups.google.com/forum/?lnk=gstq=ClassNotResolvedException#!topic/google-web-toolkit/uEkludbtwpghttps://groups.google.com/forum/?lnk=gstq=ClassNotResolvedException#%21topic/google-web-toolkit/uEkludbtwpg thanks. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Cesar Ruiz. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] GWT and GAE debugging problem
Yest, its fixed!. But another real important question appeared. When trying to retrieve the list of objects Book, an exception is thrown, sayin: GRAVE: javax.servlet.ServletContext log: Exception while dispatching incoming RPC call com.google.gwt.user.client. rpc.SerializationException: Type 'org.datanucleus.store.appengine.query.StreamingQueryResult' was not included in the set of types which can be serialized by this SerializationPolicy or its Class object could not be loaded. Apparently, its a big problem Google hasnt fixed yet?. What can I do?. Thank you. On 22 December 2010 21:39, Ikai Lan (Google) ikai.l+gro...@google.comikai.l%2bgro...@google.com wrote: Have you asked your question here? http://groups.google.com/group/Google-Web-Toolkit -- Ikai Lan Developer Programs Engineer, Google App Engine Blogger: http://googleappengine.blogspot.com Reddit: http://www.reddit.com/r/appengine Twitter: http://twitter.com/app_engine On Wed, Dec 15, 2010 at 10:06 AM, kidowell crui...@gmail.com wrote: Hey. Im starting with GAE, and im making an RCP program (a book address), on the server side I've got all the methods for manipulating the datastore (I'm using JPA), and on the client side I'm using GWT as a framework. When debugging it turns out, that I can only see the server side, and program never stops in any breakpoint on the client side. Is there any way that I can debug on both side sas the program runs. Because, just debugging on the server side is not very helpful. Thank you in advanced for your recomendation. Kido. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Cesar Ruiz. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: Cant retrieve a list of objects when using GAE and JPA.
Hey can you please explaine me the DTO way, with some code or an example, I really need to retrieve those objects. Thank you in advanced. Kido. On 21 December 2010 20:18, Stevko andy.ste...@gmail.com wrote: I may be dated on this with not keeping up on the latest gwt advances. The problems is a JPA or JDO augmented class is not directly portable (serialize/deserialize) from the GAE/J class to a GWT/js class like non-persistent classes are. The classic DTO case (and not elegant) is to copy+paste your persistent classes into a shared model w/o the database twist and write the transporters. Many folks today have decided to skip the JPA layer and use Objectify for GAE database access. Its led to less headaches for some bloggers. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Cesar Ruiz. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: GWT Designer for NetBeans
True. Moved already. Cheers. Kido. On 16 December 2010 04:03, Didier Durand durand.did...@gmail.com wrote: Hi, A more appropriate place to post this question is http://groups.google.com/group/google-web-toolkit regards didier On Dec 15, 8:03 pm, kidowell crui...@gmail.com wrote: Hey, is there any gwt designer for NetBeans out there?. It would be nice to place all the design and receive automatically the code for it. I have read theres a plugin for Eclipse but I can't find anything for NetBeans. Any sugestion?. Cheers. Kido. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Cesar Ruiz. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: Can't save an object into the Datasore (JPA)
Hey, thank you for replying.
but what exactly do you mean by starting the local environment services, I
created the Datastore indexes.xml and Im using the google plugin.
I ran the app and it worked but it doesnt create the local_db file, I
deployed it to the google cloud it worked aswell.
The problem is in development mode and the exception is thrown on the line
entityTransaction.beging().
When I choose *Run GWT Dev Mode on Google App Engine *(on Netbeans) (Im
also using gwt as a framework), it tells me:
Please set the AppEngine Agent environment variable. Add
appengine.agent={path-to-appengine-installation}/lib/agent/appengine-agent.jar
to the file: {path-to-this-project}/nbproject/private/private.properties
Wich I did manually (opened the properties file and wrote the path of the
appengine-agent jar). But it keeps erasing itself. How should I configure
the appengine-agent, maybe thats the problem.
Thank you in advanced.
Kido.
On 14 December 2010 05:35, Didier Durand durand.did...@gmail.com wrote:
Hi,
Do you get this on the local dev server n your IDE ? If yes, it comes
become you didn't start the local environnement services: see
http://code.google.com/appengine/docs/java/tools/devserver.html
On Dec 13, 8:28 pm, kidowell crui...@gmail.com wrote:
Hey I'm new at this, I just want to use the Google datastore, I made a
persistence object but when it comes to save it to the datastore an
exception is caught saying No environment variable is registered for
this thread.
When debugging the exception is thrown on the line
the entityTransaction.begin();
I'm using NetBeans and JPA. I havent found yet an example where a
persistent object is save to the datastore.
Please it's been 5 days since I have been trying to save something to
the datastore. I really need some help. Thank you in advanced.
Kido.
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Re: 回复： Re: [appengine-java] Re: Can't save an object into the Datasore (JPA)
Hey Didier, the problem was solved, thank you very much indeed. Now I can
debug my app and I can save my objects in the datastore.
Thank you a lot, cheers.
Kido.
2010/12/14 Didier Durand durand.did...@gmail.com
Hi,
Starting the local dev environment is fully described here:
http://code.google.com/appengine/docs/java/tools/devserver.html
if you don't succeed, let us know and I'll post some of my own code
how I do it
regards
didier
On Dec 14, 12:38 pm, Liang Ding dl88...@gmail.com wrote:
又发现一个中国人 ;-)
2010/12/14 EtuO nbaer...@gmail.com
看不懂
在 2010-12-14 下午7:29，Cesar Ruiz crui...@gmail.com编写：
Hey, thank you for replying.
but what exactly do you mean by starting the local environment
services, I
created the Datastore indexes.xml and Im using the google plugin.
I ran the app and it worked but it doesnt create the local_db file, I
deployed it to the google cloud it worked aswell.
The problem is in development mode and the exception is thrown on the
line
entityTransaction.beging().
When I choose *Run GWT Dev Mode on Google App Engine *(on Netbeans)
(Im
also using gwt as a framework), it tells me:
Please set the AppEngine Agent environment variable. Add
appengine.agent={path-to-appengine-installation}/lib/agent/appengine-agent.jar
to the file:
{path-to-this-project}/nbproject/private/private.properties
Wich I did manually (opened the properties file and wrote the path of
the
appengine-agent jar). But it keeps erasing itself. How should I
configure
the appengine-agent, maybe thats the problem.
Thank you in advanced.
Kido.
On 14 December 2010 05:35, Didier Durand durand.did...@gmail.com
wrote:
Hi,
Do you get thi...
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