cannot set _id with async insertDocument

[konsultaner]

I have a model:

public class MyModel implements Serializable {
    @DocumentField(DocumentField.Type.ID)
    protected String id;
    @DocumentField(DocumentField.Type.KEY)
    protected String key;
}

When setting the id to MyModel/1 and using synced version of

collection.insertDocument(myModel, documentCreateOptions);

The model will be stored with a key of 1. If I use the async verion of it I get a random key like 23748972. Is this a bug or a wanted behaviour?

[rashtao]

Hi @konsultaner , unfortunately I cannot reproduce it in the way you described.
Can you please provide a code snippet?

[konsultaner]

I wrote a unit test that fails on my machine (ArangoDB 3.4.8 [win64] 64bit, using build tags/v3.4.8-0-g0952837c2a, VPack 0.1.33, RocksDB 5.16.0, ICU 58.1, V8 5.7.492.77, OpenSSL 1.1.0k).

package de.konsultaner.arango.model;

import com.arangodb.async.ArangoDBAsync;
import com.arangodb.entity.DocumentField;
import com.arangodb.velocypack.module.jdk8.VPackJdk8Module;
import org.hamcrest.CoreMatchers;
import org.junit.Test;

import java.io.Serializable;
import java.util.concurrent.ExecutionException;

import static org.junit.Assert.assertThat;

public class Bug {
    @Test
    public void bug() throws ExecutionException, InterruptedException {
        ArangoDBAsync instance = new ArangoDBAsync.Builder()
            .host("localhost", 8529)
            .password("root")
            .user("root")
            .registerModule(new VPackJdk8Module())
            .build();
        BugModel model = new BugModel();
        model.id = "Bug/2";
        instance.createDatabase("bug").get();
        instance.db("bug").createCollection("bug").get();
        instance.db("bug").collection("bug").insertDocument(model).get();
        try {
            assertThat(model.id, CoreMatchers.equalTo("Bug/2"));
        } finally {
            instance.db("bug").drop().get();
        }
    }


    public class BugModel implements Serializable {

        @DocumentField(DocumentField.Type.ID)
        protected String id;
        @DocumentField(DocumentField.Type.KEY)
        protected String key;
        @DocumentField(DocumentField.Type.REV)
        protected String revision;
        @DocumentField(DocumentField.Type.FROM)
        private String from;
        @DocumentField(DocumentField.Type.TO)
        private String to;
    }
}

[rashtao]

This is the expected behaviour and also for the sync driver it works in the same way.
_id is derived from _key (and collection name), but not the other way around!
Therefore it would be enough to specify the _key attribute only.

[konsultaner]

Thanks!