About Object Database

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Forum
22

How to access database object to my application.

is without using tostring method. like a independent object and database. Thank you. Unfortunately ... Hi, I want to access a object which contains some value like id,name,college and address. Here it returns some address but i am not getting object value, i attach 3 java program below, please check
Forum
22

A few questions on object database design

I've been trying to model a database that stores data in an MMORPG. With ObjectDB, a lot of things ... outperforms a lot of other conventional table-oriented databases, but I'm wondering ... entities, then it seems like we are back to the table-oriented databases' design principles
Manual
21

DELETE Queries in JPA/JPQL

As explained in chapter 2, entity objects can be deleted from the database by: Retrieving ... entity objects from the database. Removing entity objects from the database using a DELETE query ... all the objects in the database: DELETE FROM Object DELETE queries are executed using the executeUpdate
Manual
21

JPA Entity Fields

otherwise (e.g. by using the @Transient annotation). Storing an entity object in the database does not ... . When an entity object is stored in the database every persistent field must contain either null or a value ... in the database for the first time) is 1. For every transaction in which an entity object
Manual
20

Defining a JPA Entity Class [2011-02-11]

To be able to store Point objects in the database using JPA we need to define an entity class ... (annotated) as having the ability to represent objects in the database. Conceptually this is similar ... , and accordingly, provides the ability to store Point objects in the database and retrieve Point
Manual
20

Defining a JPA Entity Class [2018-10-20]

To be able to store Point objects in the database using JPA we need to define an entity class ... (annotated) as having the ability to represent objects in the database. Conceptually this is similar ... , and accordingly, provides the ability to store Point objects in the database and retrieve Point
Manual
19

Shared (L2) Entity Cache

the database and added to the shared cache. On commit - new and modified entity objects are added ... Every EntityManager owns a persistence context, which is a collection of all the entity objects ... an entity object that is already managed by the EntityManager returns the existing instance from
Manual
19

Defining a JPA Entity Class [2019-01-29]

To be able to store Point objects in the database using JPA we need to define an entity class ... (annotated) as having the ability to represent objects in the database. Conceptually this is similar ... , and accordingly, provides the ability to store Point objects in the database and retrieve Point
Manual
19

Defining a JPA Entity Class [2019-01-29]

To be able to store Point objects in the database using JPA we need to define an entity class ... (annotated) as having the ability to represent objects in the database. Conceptually this is similar ... , and accordingly, provides the ability to store Point objects in the database and retrieve Point
Manual
19

Defining a JPA Entity Class [2019-01-31]

To be able to store Point objects in the database using JPA we need to define an entity class ... (annotated) as having the ability to represent objects in the database. Conceptually this is similar ... , and accordingly, provides the ability to store Point objects in the database and retrieve Point