About modify

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Manual
69

Updating JPA Entity Objects

Modifying existing entity objects that are stored in the database is based on transparent ... Once an entity object is retrieved from the database (no matter which way) it can simply be modified in memory ... all the modified entity objects. Therefore, entity objects that are referenced from modified entity
Manual
45

Schema Update

Explains how to handle JPA/JDO database schema evolution in ObjectDB.
Forum
26

Can't modify @EmbeddedId in ObjectDB Explorer

Hi! There is entity Journal with @EmbeddedId JournalId. Id's content can't be seen/modified from ... only on its parent. Problem: id's content can't be modified through its parent neither. Scenario: open db in ObjectDB Explorer, open entity Journal, expand the id, try to modify date/id, save, then refresh data
Forum
25

Modifying something with Explorer -> app JPQL with Enum doesn't work anymore

is printed in the console, open ObjectDB Explorer, modify an entity's type from GOOD to BAD, save ... modify anything. Just open and close the DB in Explorer. (Follow all the steps, but don't modify ... (so it might interpret and modify them wrongly - or they might be a bug in saving classes inside the db
Forum
25

2.7.3_03 Erroneous "Attempt to modify a primary key of a managed object"

ObjectDB 2.7.3_03 gives my application a "com.objectdb.o.UserException: Attempt to modify a primary ... to modify a primary key of a managed object. Older versions missed some checks that were added recently ... "Attempt to modify a primary key of a managed object" So I assumed it was relevant to the thread
Forum
24

Conflicting modifiers .... (javax.persistence.Id, javax.persistence.ManyToOne)

modifiers for field uk.co.his.experiment8.cmdline.objdb.CompoundKeyMapItem.container (javax.persistence.Id ... .objectdb.o.UserException: Conflicting modifiers for field uk.co.his.experiment8.cmdline.objdb
Forum
24

Remove a modified entity cause an optimistic lock exception

Hello, the following examples load and modify an entity, and load and remove the same entity. The first example 'SetAndRemoveIssue.java' is a simple java program which executes without errors ... the database. Modifying the object. Flushing changes to the database (by running a query in
Manual
24

Server User List

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Forum
24

Modifier operations

Hi, Today I was reading about different NoSQL databases. One of those database - MongoDB - has a very nice feature, especially for web applications - modifier operations. The whole trick for those operations is to change some value in object without pulling this object from database. So for example
Forum
24

Support of modifying an ObjectDB Entity class (Schema Change)

If you modify an ObjectDB Entity class will it be supported by a database set up using the old class? I already have an idea to iterate through a database, getting each record and then creating a record of the new type and replacing it, but I was just wondering if there is an easier way or