Hi all,
I have a strange (really strange) problem with Gson and OrientDb. FYI, I'm
using OrientDb v2.0, Gson 2.3.1
After retrieving a document from OrientDB, when I try to generate the
corresponding JSON using GSON I get an empty object (I can see all the
properties, they are just empty).
But, if I do perform an access to one of the properties (Ex: String a =
p.getName()) everything works perfectly.
I suspect there is something going on with attach/detach cause if I do a
db.detach(object) "something" happen: all the properties appear correctly
in the JSON but none of the LINKed properties is populated.
This is the code:
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.annotations.Expose;
import com.orientechnologies.orient.core.id.ORecordId;
import com.orientechnologies.orient.object.db.OObjectDatabasePool;
import com.orientechnologies.orient.object.db.OObjectDatabaseTx;
public class Company {
@Expose private String name;
public Company() {
this.name = "";
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public static void main(String[] argv) {
OObjectDatabaseTx db=
OObjectDatabasePool.global().acquire("remote:localhost/Testing", "admin",
"admin");
db.getEntityManager().registerEntityClass(Company.class);
ORecordId id = new ORecordId("#13:1");
Company p = db.load(id);
db.close();
//If I remove this line, I get an empty json
System.out.println(p.getName());
Gson gson = new
GsonBuilder().excludeFieldsWithoutExposeAnnotation().create();
String res = gson.toJson(p);
System.out.println(res);
}
}
I also tried loading using SQL (List<Company> pRes = db.query(new
OSQLSynchQuery<Company>("select from Company where @rid=#13:1"));) but same
problem.
Not sure what's going on, it seems something funny between Gson and
OrientDB reflection but I don't know how to solve it.
Thanks!
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