CODEWITHSUNDEEP
mongodbplayframework-2.0morphiamongodb-java
nightograph
nightograph

Reputation: 2269

index annotation with morphia does not work

I'm pretty new to morphia and struggling with getting the index annotation to work. I'm creating the datasource in a static block and calling ensureIndexes in the same block, but it fails to apply the indexes. If I put the line right before I save the object it works.

By the way,I'm using playframework 2 with Java.

public class MongoService {
static private MongoClient mongoClient = null;
static Datastore ds = null;

static {
    MorphiaLoggerFactory.reset();
    MorphiaLoggerFactory.registerLogger(com.google.code.morphia.logging.slf4j.SLF4JLogrImplFactory.class);
    try {
        Logger.debug("mongo uri:" + mongoUri);
        MongoClientURI uri = new MongoClientURI(mongoUri);
        mongoClient = new MongoClient(uri);
        ds =  new Morphia().createDatastore(mongoClient, dbname);
        ds.ensureIndexes();
        ds.ensureCaps();
    }catch(Exception e) {
        Logger.error("exception:" + e.fillInStackTrace());
    }

}

public static User insertUser(User user) {
    //ds.ensureIndexes(); //UNCOMMENTING THIS LINE MAKES IT WORK
    ds.save(user);
    return user;
}

This is the implementation of the user class:

@Entity(noClassnameStored = true)
public class User {

@Id private ObjectId id;

@Indexed(value=IndexDirection.ASC, name="email", unique=true, dropDups=true) 
public String email; 
}

Upvotes: 2

Views: 4424

Answers (5)

jhonatan L M
jhonatan L M

Reputation: 11

I solved the problem by this form:

public void create(Producto p) {
        Morphia m =new Morphia();
        Datastore ds = m.mapPackage("ec.edu.espe.as.model.Producto").createDatastore(new MongoClient(), "productoPrueba");              
        DBObject dbo = m.toDBObject(p);        
        ds.ensureIndexes();
        ds.getCollection(Producto.class).insert(dbo);
    }

I mean, make the ensureIndexes just before insert

Upvotes: 0

Ash Eldritch
Ash Eldritch

Reputation: 1514

Although for OP this wasn't the issue, I found that even though the @Entity class decorator is optional, if it's left out then field-level indexes don't get created by Morphia.

Upvotes: 0

Byron Zhang
Byron Zhang

Reputation: 11

This is my code in Play, and it works. Please try:

 modelClass = Class.forName(model, true, app.classloader());
 morphia.map(modelClass);

Upvotes: 1

nightograph
nightograph

Reputation: 2269

There seems to be a conflict between package loader that Morphia is using and the one that play framework is trying to use, I could not find the exact problem but as a workaround I am mapping each object one by one and that seems to be working 

 morph.map(User.class);
 morph.map(Address.class);
 . 
 . 
 .

Upvotes: 4

xeraa
xeraa

Reputation: 10859

You need to map your entity classes - either by package or by class:

ds = new Morphia().mapPackage("com.test.entities").createDatastore(mongoClient, dbname);

Upvotes: 4

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