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Manual
69

Numbers in JPQL and Criteria Queries

:  + (addition), - (subtraction), * (multiplication) and / (division). ObjectDB also supports ... , path); // number - expression // Multiplication (*) Expression prod1 = cb.prod(path
Manual
25

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
Manual
21

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
Issue
20

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
20

multiple connection using share folder

database from multiple system  In embedded mode the database file is locked for a single process. Use client-server mode or embedded-server mode to enable concurrent database access from multiple
Forum
20

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
Forum
19

100% CPU when using multiple BETWEEN

100% CPU when using multiple BETWEEN
Forum
19

Acces the same DB with multiple users

Acces the same DB with multiple users
Forum
19

CriteriaQuery .where() for multiple conditions

CriteriaQuery .where() for multiple conditions
Forum
19

Get multiple entities by Id

Get multiple entities by Id