Have I had to change the decleration of the property "content", not just "@Persistent "?"@Persistent(serialized="true", defaultFetchGroup="true")" or "@Enumerated",whitch one is true? I met the problem as follow:
ARNING: Conversion error for org.datanucleus.store.appengine.query.StreamingQueryResult. org.directwebremoting.extend.MarshallException: Error marshalling com.ag.ay.model.Blog: com.google.appengine.api.datastore.Blob. On 12月15日, 上午9时06分, noelo <noelo1...@gmail.com> wrote: > how can I delete the datas which generated when I test my temp > application in the local environment(Eclipse + GAE plugin). Cause I > had to change some properties of the model,and I met some error of > data type unmatch,how can I delete the former local data which was > different from the new data class? > > On 12月15日, 上午1时58分, abhi <abhishek9...@gmail.com> wrote: > > > > > Hey, > > try something like this > > > @PersistenceCapable(identityType = IdentityType.APPLICATION) > > public class MyLongTextExample { > > > @PrimaryKey > > @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) > > private Long id; > > > @Persistent > > private Text content; > > > public MyLongTextExample(String content) { > > > this.content = new Text(content); > > } > > > } > > > getter for content is something like this > > public String getContent() { > > return content.getValue().toString(); > > }- 隐藏被引用文字 - > > - 显示引用的文字 - -- 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.