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Change Log of ObjectDB Releases

In response to the forum posting http://www.objectdb.com/database/forum/994 changes ... that this change massively tripped me up (because I was using the old hidden getter/setter pattern with reflection ... Enhancer hidden methods to non property method names. This change is a huge GOTCHA

and the entity is passed to plugin B. Plugin B changes an attribute on the entity. Plugin C removes ... , it works well. Why the ObjectDB want to commit the changes of the entity although the entity ... and changes it. User 2 retrieves an object, removes it and commit. This should work if the changes

Hello, we try to change the class hierarchy of an Entity. You wrote www.objectdb.com/database ... hierarchy change .   But our small test failed: At first create a DataBase with one Object ... ; @Basic   String value; } } Then we change the class hierarchy of MyEntity from NamedEntity

Hi, I changed package name for some of my entities in database. I added info in of my configuration file - and the changes have been succesfully made in database. Unfortunately, sequences have been probably lost for changed entity classes. After schema change I keep getting errors : Attempt

change during the life of the system as it is large enough to contain all objects we ever want ... of October at 3am. We think this is significant as this is exactly the time when Madrid changed clocks ... to us to know if time change , in particular back one hour, may have impact on the operation of Object

Given this config: I'm not  getting PostUpdate changes when a string is added to a list of strings. All other property changes fire events just fine. thoughts?     dmoshal David ... is whether it is possible to track changes to lists of primitives? dmoshal David Moshal Hmm, digging into

detects and handles changes . Transparent update After an entity is retrieved from the database ... that are not yet managed are also persisted. Automatic change tracking As shown previously, you update ... detect changes to managed entities. One detection method is to save a snapshot of each managed object

on which they were invoked. Flush mode (setFlushMode) Changes made to a database by using an EntityManager ... . However, these changes are not visible to users of other EntityManager instances. JPA implementations can easily make uncommitted changes visible for simple operations, such as find . However, query

have to be an entity. To remove elements from a collection, use the Edit Delete command. To change the order of elements in an ordered collection, use the Edit Move Element commands. Saving changes The Explorer ... are part of the active transaction. The File Save command commits the transaction, applying all changes to the database

Modifications to entity classes that do not change their persistent field definitions ... : In client-server mode, the ObjectDB server must be restarted after a schema change . Automatic ... use of old entities after a schema change . When an entity with an old schema is loaded into memory

, such as Hibernate, or for changing default field settings. For example: @Entity public class ... declaration demonstrates how to use field and relationship annotations to change the default behavior ... , the side that stores the data (the Employee class in this example) is the owner. Only changes

refactoring. You specify only these schema changes in the configuration file. As explained in Chapter 2 , ObjectDB handles other schema changes automatically. Note: Use extreme caution ... these changes , the application runs only with a configuration that matches them exactly. The default

objects does not require an active transaction because it does not change the database content ... that it references through its collection and map fields are not retrieved with it. You can change ... changes , is discarded and replaced with data retrieved from the database. This can be useful to ensure

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within an active transaction, the owning EntityManager detects the change and propagates the update ... about making changes to entities. A managed entity can be marked for deletion by using the EntityManager 's remove method within an active transaction. The entity's state changes from Managed

. JPA provides two properties that you can use to change the default behavior. jakarta.persistence ... . The default setting is USE . You can change it for a specific EntityManager : em. setProperty ( "jakarta ... , which refreshes entities that are already cached. The default setting is USE . You can change

other managed objects. Transparent update - changes are detected automatically. Code enhancement is optional ... versioning. Class hierarchy changes are handled automatically. New added fields are handled automatically. Removed fields are handled automatically. Most field type changes are handled automatically

operation. Apply changes to the database by calling the commit method. JPQL DELETE queries provide ... within an active transaction. The changes become visible to other users (who use other EntityManager

Contributor: i) changes to the Program, and ii) additions to the Program; where such changes and/or

. Apply the changes to the database by calling the commit method. JPQL UPDATE queries provide ... database modification, you must execute UPDATE queries within an active transaction. The changes

when modifying existing entities and flushing changes to the database: Executes before the database update operation. This is typically used to update "last modified" timestamps or validate state changes

are not associated with an EntityManager , and changes to them during an active transaction are not

; and You must cause any modified files to carry prominent notices stating that You changed the files

, and changes its state to Managed. The new entity is stored in the database when the transaction

that were loaded before the object was detached. Changes to detached entities are not persisted

and UPPER - changing string case The LOWER(str) and UPPER(str) functions return a string that is converted

can be represented internally by their names. In that case, the names must not be changed , because renaming

to change the terms and conditions, the products, services, prices, and programs mentioned in this site at any time, at its sole discretion.

(that is, without the package name), but you can change it by specifying a different name in the name element

when the persistence context is synchronized with the database and when in-memory entity changes are written

subdirectory. However, moving objectdb.jar changes the value of $objectdb . For example, in a web application

thread on the server. Therefore, some thread operations, such as changing the thread priority, have no effect.

and can change at any time without notice. The supported logging levels are: fatal error warning info trace debug

changes to the materials contained on its web site at any time without notice. ObjectDB Software does

, detaching all its entities, by calling clear . The client may also make changes to the state of an entity ... clear () Clear the persistence context, causing all managed entities to become detached. Changes ... a native SQL query. In the next release of this API, the return type of this method will change

file automatically. You can change this behavior in "Tools | Options | General". Opening a Remote ... click on the target element opens the browser window by default (you can change the default to a table ... discussed in chapter 4 ) must be available, otherwise the load operation will fail. A change

can be changed as explained in section 4.3 Embedded objects can reduce storage space and improve efficiency ... is already in the database, the new name is assigned to it but its content is only updated if it has changed ... the database. If the object was modified since it was previously loaded, and the changes were not committed

when a persistent field is modified during a transaction because the change must be applied to the database ... that perform the same accesses but also report to ObjectDB. Tracking changes in persistent arrays (in ... minute changes to persistent fields in the object just before the store. void jdoPreClear() Called

is adequate. Metadata for fields is required only for changing the default. Therefore, only fields ... attribute makes it possible to change the default. Specifying a persistent value, as demonstrated by field f0 , changes a field that is transient by default to persistent. For example, a field

in JDO, which does not specify a default). Opposite values should be specified in order to change ... is always expected to be atomic, so a situation in which only some of the changes are applied to the database is not acceptable. Before commit() starts writing to the database it stores the changes

are the same in both modes, switching between these two modes can be done very easily by simply changing ... . The reload attribute specifies how often (in seconds) the server checks the configuration file for changes . For instance, a value of 30 (as specified above) indicates a check every 30 seconds. If a change

/. This Spring web application can also run with GlassFish 3.0.1, with a small change in the 

the properties table to complete the table design (e.g. change the background color). You may click Preview

You can run the application now by right clicking the  GuestServlet node (in the [Projects] window), selecting  Run File , and then clicking  OK (no need to change the servlet execution URI). Since we are using ObjectDB in embedded mode - the database file is created

You can run the application now by right clicking the GuestServlet node (in the [Projects] window), selecting Run File , and then clicking  OK (no need to change the servlet execution URI). Since we are using ObjectDB in embedded mode - the database file is created under the Tomcat directory

Tomcat as a server and click  OK . Note: To run the application on GlassFish - change

/Guestbook/. This tutorial should also run with GlassFish 3.0.1, with a small change in

indicates whether the Extent should also represent instances of subclasses ( changing false to true ... the transaction with rollback() discards all the changes done during its activity (line 52). Lines 58

simultaneously. Moving from one mode to the other can be done simply by changing a single string (the connection