About embedded

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JDO Doc
45

Embedded.nullIndicatorValue

Annotation Element javax.jdo.annotations.Embedded String nullIndicatorValue The value in the null column to interpret the object as being null. Returns: the null indicator value Default value: "" Since: JDO 2.1
Forum
21

Embedded Object inside another embedded object - is that possible?

I have an entity with an embedded object - it works fine. Now I am trying to add an embedded object inside the first level embedded object - but it does not seem to store it and does not throw ... - the 2nd level embedded class only had final fields.. so they were not stored as expected. Thanks
Forum
21

Embedding Managed Entities in Embedded Objects = bad idea

Discovered that you can't embed entities in embeddable objects if the entity is managed. Haven't tried embedding un-managed entities in embeddable objects, though I imagine that's not a great idea. The the error message isn't all that obvious (attempting to persist object which already has an id
Manual
20

Storing JPA Entity Objects

of other persistable types can only be stored in the database embedded in containing entities (as ... managed by the EntityManager) or by commit. Referenced Embedded Objects The following code stores ... embedded in containing entity objects. Therefore, if Address is defined as an embeddable class
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18

Changing existing objects from Entity to Embedded

name="attributes" embedded="true">     embedded-key="true" embedded-value="true" />             embedded="true"/>    embedded="true">     embedded-key="true" embedded-value="true
Forum
18

Embedded in JDO metadata not working in objectDB 2.x ?

1 (with an OID for every instance) and all other classes were embedded (so without extent ... ">   embedded="true"/>   embedded="true">      embedded-element="true" />      So as
Forum
18

Server vs embedded mode in multi-instance scenario

there will only be one active instance of the app, use embedded mode inside the web application ... otherwise, with such a big performance improvement for embedded mode, but maybe that has a limit ... an embedded or server mode for our scenario? Are there concerns that I'm missing such as availability, bad
Forum
17

Weird behaviour with enhanced classes and embedded entities

entries of my ArrayLists with embedded entities are missing. I've hunted the problem down to an enhanced/proxied list in my entity which contains embedded entities and some .add(obj) are simply failing ... embedded){       embeddedEntities.add(embedded);     }         public List
Forum
17

collection of embedded objects

1. In general, are there any restrictions of the use of @Embedded objects in collections, compared to @Entity? 2. If you have a large nested collection of @Embedded objects, and you remove the parent ... of @Embedded objects more expensive (time) than searching through collections of @Entity? Thanks
Forum
16

Embedded Database Replication

As we all know, embedded databases out perform server databases on every occasion. The problem with embedded databases is that theyre difficult to scale. If I were to create an entire enterprise web application within a single jar file using embedded tomcat and embedded objectdb I would run into