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Manual
76

Numbers in JPQL and Criteria Queries

:  + (addition), - (subtraction), * (multiplication) and / (division). ObjectDB also supports ... , path); // number - expression // Multiplication (*) Expression prod1 = cb.prod(path
Manual
26

Storing JPA Entity Objects

object. Notice that embedded objects cannot be shared by multiple entity objects. Each containing ... that field (multiple entity objects can be referenced by a collection field): @Entity class Employee ... . Storing large amount of entity objects can also be performed by multiple transactions: em
Issue
23

NullPointer running multiple client against server

Hi, I'm running objectdb in server mode, config as it comes out of the box. In this case the database is being used as a queue with multiple seperate processes, each with multiple threads, writing messages. The message is split into a lightweight metadata message to allow fast searching
Forum
22

Recommendation - concurrent access multiple class v

Hi! I've just started to architect a new system, stateless JSON API, which is expected to have very high load and to require more servers for parallel deployments (same app across multiple servers). I am considering using ObjectDB, because of its advantages and easy usage, but I'm afraid
Manual
22

Index Definition

index is an index on more than one persistent field. It is defined by specifying multiple fields in ... the class. Multiple @Index annotations can be wrapped with an @Indices annotation: @Entity @Indices ... , the @Uniques annotation can wrap multiple @Unique annotations. As shown above, the members attribute
Forum
21

Acces the same DB with multiple users

Acces the same DB with multiple users
Forum
21

Get multiple entities by Id

Get multiple entities by Id
Forum
21

InternalError on multiple AND and JOIN Query

InternalError on multiple AND and JOIN Query
Forum
21

Issue with orphanRemoval and multiple EntityManagers

Issue with orphanRemoval and multiple EntityManagers
Forum
21

Using multiple databases

Using multiple databases