Model can not have field of type com.google.appengine.api.datastore.Key

[GoogleCodeExporter]

    According to the document (
http://sites.google.com/site/slim3appengine/slim3-datastore/defining-data-classe
s/core-value-types
)，the com.google.appengine.api.datastore.Key can be used as field type.
But a model (see the SomeModel example below) contains a Key field throws
the IllegalArgumentException exception when Datastore.put is called to
persist the entity of that class.

@Model(schemaVersion = 1)
public class SomeModel {

    @Attribute(primaryKey = true)
    private Key key;
    ...
    private Key someOtherKey;
    ...
}

Stack trace

java.lang.IllegalArgumentException: The meta data of the
model(com.google.appengine.api.datastore.Key) is not found.
    at org.slim3.datastore.DatastoreUtil.createModelMeta(DatastoreUtil.java:1295)
    at org.slim3.datastore.DatastoreUtil.getModelMeta(DatastoreUtil.java:1222)
    at org.slim3.datastore.DatastoreUtil.modelToEntity(DatastoreUtil.java:1398)
    at org.slim3.datastore.DatastoreUtil.modelsToEntities(DatastoreUtil.java:1426)
    at org.slim3.datastore.Datastore.put(Datastore.java:2324)
...
[omitted]

Original issue reported on code.google.com by mylee...@gmail.com on 6 Apr 2010 at 9:43

[GoogleCodeExporter]

I cannot reproduce it. Could you elaborate on that?

My model:
package slim3.demo.model;

import java.io.Serializable;
import org.slim3.datastore.Attribute;
import org.slim3.datastore.Model;
import com.google.appengine.api.datastore.Key;

@Model(schemaVersion = 1)
public class SomeModel implements Serializable {

    private static final long serialVersionUID = 1L;

    @Attribute(primaryKey = true)
    private Key key;

    private Key someOtherKey;

    public Key getKey() {
        return key;
    }

    public void setKey(Key key) {
        this.key = key;
    }

    public Key getSomeOtherKey() {
        return someOtherKey;
    }

    public void setSomeOtherKey(Key someOtherKey) {
        this.someOtherKey = someOtherKey;
    }
}

My test case:
package slim3.demo.model;

import org.junit.Test;
import org.slim3.datastore.Datastore;
import org.slim3.tester.AppEngineTestCase;

public class SomeModelTest extends AppEngineTestCase {

    private SomeModel model = new SomeModel();

    @Test
    public void test() throws Exception {
        Datastore.put(model);
    }
}

Original comment by higaya...@gmail.com on 6 Apr 2010 at 11:12

[GoogleCodeExporter]

I made a stupid mistake. I mistakenly put a Key into an list and use the list 
in a
Datastore.put(tx, list) call.

Please remove this issue. And I am sorry for wasting your time.

Original comment by mylee...@gmail.com on 6 Apr 2010 at 12:57

[GoogleCodeExporter]

Please tell me before remove this issue. The Slim3 forum is full of junk
advertisement and it seems there are very few people discussing there. If I have
additional questions, should/may I ask question in English in Slim3 Japanese 
forum?
Thanks!

Original comment by mylee...@gmail.com on 7 Apr 2010 at 12:22

[GoogleCodeExporter]

Please feel free to post questions in Slim3 English forum if you have any 
questions.

Original comment by higaya...@gmail.com on 7 Apr 2010 at 2:02

[GoogleCodeExporter]

Thanks! I understand.

Slim3 is a good framework. GJ!

PS: Since I have read the latest message, you can close (or remove) this issue.

Original comment by mylee...@gmail.com on 7 Apr 2010 at 9:54

[GoogleCodeExporter]

Original comment by higaya...@gmail.com on 8 Apr 2010 at 3:38

• Changed state: WontFix