The code is currently very slow. It has only a few models with many properties in each.
Getting / placing large objects
Since the data warehouse API can only place or receive an object (as opposed to individual fields), every time you select an object for a data warehouse, it retrieves all its fields, regardless of whether you are going to use all of them at this moment or not, This effect will be stronger when we write the object back to the data store, it should write everything, even if you change one field in the object. (writes more than read)
- : .
, , , title, date body ( , ). BlogPost, , titles (, ) dates.
class BlogPost {
String title; String body; long date; }
, , body, body, () BlogPost.
class BlogPost {
String title;
Key<Body> body;
long date;
}
class Body {
String body;
}
BlogPost , , , - ( JavaScript), , GWT.
Google App Engine ?
:
, .