About fields

forum_thread

ObjectDB Full-Text Search

Is there any way to perform a Full-Text Search using ObjectDB and Lucene or something similar? If so, how? Are there any examples available? ... is to store the text in indexed List< String> fields, where each string represents a word. ObjectDB ...

 
page

How to upgrade from ObjectDB 1.0?

Explains how to upgrade from ObjectDB 1.0 to ObjectDB 2.0.... declare classes as embeddable (rather than the reference fields as in ObjectDB 1.0), either by annotation ( @Embeddable ...

 
tutorial

Step 2: Define a JPA Entity Class

Explains how to create a JPA entity class in the NetBeans IDE. To store objects in an ObjectDB database using JPA we need to define an entity class: Open the [New Java Class] dialog box, e.g. by right clicking the tutorial package node (in the [Projects] window) and selecting New > Java C ...

 
api-jdo

javax.jdo.annotations.Extension

Annotation for a JDO vendor extension.(Annotation of JDO)

 
forum_thread

Speeding up reporting queries with size() on list

Hi, I'm working on some reporting stuff in our application. One of few different reports should include activity on last modified objects. The query for now looks like this: select date(insp.lastModificationDate), insp.modifiedBy, insp.description.length(), insp.products.size(), insp.picture from Inspiration insp order by date(insp.lastModificationDate) desc insp.description is normal String field in Inspiration entity. insp.products is a list with 0 to 600 objects. Definition: #1 2011-12-22 15:26 Hi, I'm working on some reporting stuff in our application. One of few different reports should inclu ...

 
api-jpa

AttributeOverrides.value

(Required) One or more field or property mapping overrides.(Annotation Element of javax.persistence.AttributeOverrides)

 
forum_thread

Removing an element from an @OneToMany doesn't work

Hello. I have a Parent and Child entities. // in the parent @OneToMany(mappedBy = "parent", fetch = FetchType.EAGER, cascade = CascadeType.ALL) private List<Child> children; // in the child @ManyToOne private Parent parent; Somewhere I do this: parent.getChildren().remove(0); manager.merge(parent); Manager.merge is just #1 2014-06-27 00:56 Hello. I have a Parent and Child entities. // in the parent   @ OneToMany ( ma ...

 
api-jdo

postDelete(event)

Invoked whenever a persistent instance is deleted, for example during javax.jdo.PersistenceManager.deletePersistent.(Method of javax.jdo.listener.DeleteLifecycleListener)

 
forum_thread

Is ObjectDB suitable for DMS (Document Management System)?

Is ObjectDB suitable for DMS(Document Management System) like application that requires to store attachments in database? I specificaly mean the ability to store and handle file attachments(MS Office, OpenOffice files, PDF files etc.) properly. Are there any limits on database size or attachment size?  Does clustering(master-slave) apply also to attachments?  Thank you, David ... You can store large attachments in ObjectDB as byte[] fields. The database size is limited to 128 TB (= 131,072 GB = ...

 
forum_thread

ClassCastException: cannot be cast to com.objectdb.spi.TrackableUserType

Hello, I have a class TherapeauticDrugScreenRqst with two other nested subclasses - all using Groovy. My first attempt to persist TherapeauticDrugScreenRqst to Objectdb 2.2.8 is successfully. However, although my method to store the method is shown below: #1 2011-07-07 19:57 Hello, I have a class TherapeauticDrugScreenRqst with two other nested subclasses - all using Groovy. ...