According OrientDB official doc, I should create Connection Pool with Object API with following code.
// OPEN THE DATABASE
OObjectDatabaseTx db= OObjectDatabasePool.global().acquire("remote:localhost/petshop", "admin", "admin");
However, I found that OObjectDatabasePool class has been deprecated and suggested to use com.orientechnologies.orient.core.db.OPartitionedDatabasePool instead.
But in that way, how can I get OObjectDatabaseTx object? That is because OPartitionedDatabasePool.acquire() can only return ODatabaseDocumentTx object.
Hope there are someone knows how to resolve it.
Thanks