ObjectDB version 2.4.5

Version 2.4.5

• Added support of lazy loading of mapped by (inverse) singular relationships (issue #768).
• Added support for using ObjectDB with TomEE / OpenEJB.
• Improved loading of eager mapped by (inverse) relationships (issue #769).
• Improved performance of database file extending.
• Fixed a bug in ignoring global cascade persist in an ORM file.
• Fixed a NullPointerException during query execution (issue #978).
• Fixed a class loading issue during automatic class scanning.
• Fixed a Doctor deadlock.
• Fixed multithreading problems when using new types simultaneously (issue #950).
• Fixed a problem of EntityManager auto closing.
• Fixed ArrayIndexOutOfBounds on using a no arg function in criteria queries (issue #946).
• Fixed activation when there is no MAC address.
• Fixed an update query error message on an attempt to update a collection (issue #943).
• Fixed a NullPointerException during persistence field access.
• Fixed a NullPointerException in query execution.

Version 2.4.4

• Improved memory management when handling very large transactions (issue #935).
• Improved the Doctor to handle additional situations.
• Added support in retrieving metamodel without connection (feature request #896).
• Added support of disabling logging.
• Improved missing license notification feedback.
• Fixed a bug in filtering mapped by objects by type.
• Fixed a regression bug in using primary key fields in queries.
• Fixed a regression bug of duplicating new objects on merge.
• Fixed a Doctor bug that caused false alarms.

Version 2.4.3

• Added support for using ObjectDB with JBoss AS 7.1.1.
• Improved performance of merging managed entities.

• Fixed a deadlock.
• Changed license checks.

Version 2.4.2

• Fixed a bug in handling mapped super class with no primary key (issue #864).
• Fixed a bug in handling enum in the primary key (issue #852).
• Fixed an initialization of inverse (mapped by) fields by JOIN FETCH (issue #854).
• Fixed type checking of query parameters.
• Changed merge implementation (removed temporary object clearing).
• Fixed the Explorer to show null values in primitive fields (unset values in new fields) correctly.
• Fixed a bug in clearing embedded objects during merge.
• Added automatic cascading through embedded objects.
• Fixed a bug in clearing persistent properties of primitive types.
• Fixed a bug of returning managed hollow objects in query results.
• Fixed an error message for invalid DELETE query (issue #825).

Version 2.4.1

• Fixed a bug of duplicating new objects during merge.
• Fixed a username/password issue in using EntityManagerFactory's getMetamodel.
• Fixed a bug in detachment of hollow objects on close (issue #799).
• Fixed a Doctor exception (issue #796).
• Fixed a Doctor bug in checking byte[] arrays (issue #811).
• Fixed an Explorer NullPointerException on opening the Options dialog with no open connection.
• Fixed an Explorer bug in menus of the File dialog (all the commands are disabled).

Version 2.4.0

• Added support of entity collections as query parameters.
• Added support of running ObjectDB within Eclipse 3.7 wrapper jar.
• Added support of sharing an identifier name for a variable and a parameter in the same query.
• Added support for using ObjectDB with GlassFish 3.1.2.
• Added handling missing classes in agent enhancement (by catching exceptions).
• Added automatic restart for failed connections on unexpected network failure.
• Improved temporary file management including avoiding permission collision.
• Improved BIRT support (issue #659).
• Improved evaluation of query plans that use composite indexes.
• Improved processing of queries with a large number of variables (issue #607).
• Improved toString of criteria queries to use aliases (issue #127).
• Changed non loaded collections on detachment to null (rather thanempty collections).
• Fixed a critical bug in handling a very large number of entity classes (issue #672).
• Fixed LockModeType.OPTIMISTIC (READ) by handling it as OPTIMISTIC_FORCE_INCREMENT.
• Fixed a bug in optimistic locking on find by using LockModeType.WRITE.
• Fixed exception when a named query doesn't exist to IllegalArgumentException.
• Fixed undeploying Glassfish 3.1.1 web application (by catching unexpected exception).
• Fixed LEFT [OUTER] JOIN issues (including on mapped by collections).
• Fixed object duplication on cascading merge (issue  #595).
• Fixed an InternalException in query execution (issue #739).
• Fixed a master server failure due to disconnecting a replicated slave server.
• Fixed NOT NULL handling for basic (non relationship) references.
• Fixed a bug in detecting orphan entities in reflection mode.
• Fixed a bug in listing inherited persistent fields (in the Metamodel API and in the Explorer).
• Fixed a bug in merging complex object graphs.
• Fixed a bug in not using LIKE's ESCAPE when an index is used.
• Fixed a bug in parsing time literals in queries.
• Fixed recovery from failure when the recovery file is empty (issue #695).
• Removed EntityManager conflict checks in NO DETACH mode.
• Fixed a bug in online backup of databases larger than 2GB.
• Fixed a bug in running queries between flush and commit.
• Fixed a deadlock (issue #450).
• Fixed another issue in implementing fake entity detachment (feature request #326).
• Fixed a bug in compilation of path expressions in queries.
• Fixed handling null values in JOIN and path expressions in queries.
• Fixed a possibly very slow query execution when using entity parameters.
• Fixed issues in navigation through detached objects.

Version 2.3.7

• Fixed a critical issue that may cause database corruption (issue #630).
• Initial attempt to enable navigation through lazy loading from detached objects (feature request #326).
• Improved toString of criteria queries to use aliases (issue #127).
• Fixed automatic variable naming in criteria queries (issue #640).
• Fixed a bug in handling mapped super classes.
• Fixed bugs in using casting in queries (including issue #642 and issue #646).
• Fixed bugs in processing JOIN queries (including issue #632 and issue #634).
• Fixed a bug in using JPQL operations (e.g. UPPER) in DISTINCT results.
• Fixed an exception in handling user defined serializable classes in the Explorer (issue #647).

Version 2.3.6

• Improved performance of collection and map size evaluation in queries.
• Fixed a critical bug in page caching (issues #610, #621, #625).
• Fixed a bug in optimization of non ASCII string indexes.
• Fixed the new query HOUR function to return hours as 0 to 23 (using 24-hour clock).
• Fixed a regression bug in the default fetch policy.
• Fixed a new bug in retrieving byte[] (issue #624).
• Fixed a bug in LEFT OUTER JOIN.
• Fixed GROUP BY DATE(...) - merging AM and PM into the same date.

Version 2.3.5

• Added support of DATE(...) and TIME(...) methods in queries.
• Added new Explorer and Server exe (for Windows 7 and 64 bits).
• Fixed handling a Calendar parameter value in criteria queries.
• Fixed using type operator and literals in client server queries (issue #605).
• Fixed eager fetch issues.
• Fixed a bug in using type literals in queries.
• Fixed a bug in passing a new entity object with no id as a query argument.
• Fixed a bug in using TYPE in queries.
• Fixed a NullPointerException in query compilation (issue #599).
• Fixed an enhancement bug in reading special fields.
• Fixed map type parameters display in the Explorer schema window.
• Fixed merging a new entity object with application set primary key.

Version 2.3.4

• Added OSGi support.
• Added support of MEMBER OF for inverse (mapped by) collections.
• Changed logging of incomplete recovery records from WARNING to TRACE  (issue #565).
• Changed main configuration elements from required to optional.
• Fixed the "Negative snapshot user count" bug (issue #556).
• Fixed a page cache purge deadlock (issue #559).
• Fixed handling ;drop in client-server connection url.
• Fixed performance issue (fetch optimization) in range queries.
• Fixed cached result size evaluation to include query arguments (issue #578).
• Fixed a bug in using IS NULL in queries on new fields after schema change.
• Fixed an Explorer bug in using an entity class with ID class.

Version 2.3.3

• Improved compilation performance of OR queries with many elements.
• Fixed eager fetch of maps and nested embedded objects.
• Fixed a bug in removing a new flushed entity object before first commit (issue #562).
• Fixed a NullPointerException in accessing inverse (mapped by) collection fields with cascading persist after updating the database and before commit (issue #544).
• Fixed NullPointerException on accessing an inverse collection in an entity that has been garbage collected (issue #544).
• Added support of @Column(unique="true") and equivalent ORM XML (issue #550).
• Fixed @PrePersist on merge to be called after merging fields (issue #551).
• Fixed eager fetch of collections and maps of simple values (issue #552).
• Fixed a NullPointerException in enhancement of more than one class path root (issue #554).
• Fixed a NullPointerException on detachment of some objects.
• Fixed Linux "Name or service not known" error on server stop.

Version 2.3.2

• Fixed a bug in "p.id IN :ids" queries.
• Fixed a bug in handling NOT = queries (issue #536).
• Fixed ClassCastException and NullPointerException in using a composite index in queries (issue #531).
• Fixed Explorer bugs: editing embedded objects and using connection urls.
• Fixed a NullPointerException on using a collection in a detached object
  (issue #527).

• Fixed a bug of changing id type when an entity object is retrieved using find with a PK of a different type (e.g. Integer instead of Long) and then updated.
• Fixed retrieval with pessimistic lock to bypass cache and to force refresh.

Version 2.3.1

• Added support for using ObjectDB with JBoss AS 7.0.
• Sample databases (world.odb, points.odb) included in ObjectDB distribution.
• New default Explorer colors (apply with Tools > Options > Fonts > Reset All).
• New menu for accessing local databases (in $objectdb/db) in the Explorer.
• Improved UnsupportedOperationException error message.
• Fixed a pessimistic lock timeout bug (issue #520).
• Fixed a ClassCastException in using a composite index in queries (issue #521).
• Fixed handling derived Id fields in composite PK embedded IDs.
• Fixed default ObjectDB home path ($objectdb) in NetBeans RCP.
• Fixed a Doctor and Replication regression (Type session exceeds timeout).
• Removed Conflicting modifiers validation check and error message.

Version 2.3.0

• Added the ability to edit databases in the Explorer (issue #2).
• Added the ability to execute queries in the Explorer (issue #3).
• Other small Explorer improvements.
• Added support of IN operator in JPQL queries.
• Added support of ";drop" database url parameter.
• Adjusted the Enhancer to the new Java 7 class file format.
• Improved error message for invalid mapped by (inverse) fields (issue #473).
• Improved persisting byte[] by reducing required storage space.
• Removed a shutdown hook that leads to memory leak (issue #453).
• Completed missing documentation (e.g. UPDATE & DELETE queries).
• Fixed memory leak issues.
• Fixed server hang and deadlock issues.
• Fixed several NullPointerException bugs.
• Fixed the "Failed to generate dynamic type" exception.
• Fixed a bug in query plans that use an inherited index.
• Fixed bugs in queries on collections.
• Fixed evaluation of $temp in the configuration file.

Version 2.2.9

• Added new configuration to enable / disable auto serialization of non persistable types (now disabled by default).
• Added support of date methods (YEAR, MONTH, DAY, HOUR, MINUTE, SECOND).
• Added support of bypassing no arg constructors of entity classes.
• Added support of using persistent array fields with parameterized type.
• Added error on using transient fields (or properties) in queries.
• Added type information to enhancement exceptions.
• Improved support of non standard database file suffixes.
• Changed fetch of collection elements.
• Fixed a bug in query plans that use an inherited index.
• Fixed an ArrayIndexOutOfBoundsException bug in using nested embedded objects. (issue #415).
• Fixed a JMX Remote - ObjectDB Enhancer Agent conflict.
• Fixed a ClassCastException bug in complex JOIN queries.
• Fixed a NullPointerException in querying an empty database.
• Fixed a online backup file lock problem.
• Fixed a bug in managing a new entity after an attempt to find it in the database.
• Fixed a bug in using LIKE in AND/OR in criteria queries.
• Fixed a bug in AND/OR grouping in criteria queries.
• Fixed a "Failed to write the value of field property" bug.

• Fixed a NullPointerException bug in query execution.

• Fixed a bug in using non managed non enhanced entity objects as parameters or in criteria queries (issue #369).
• Fixed a bug in using primary key in results of a JOIN query.
• Fixed a recursive @PreUpdate call bug (when the callback updates the entity).

Version 2.2.8

• Fixed a critical bug in extensive removal operations of large objects.
• Improved the performance of navigation through an inverse (mapped by) field if the owner field is indexed.
• Fixed a LEFT OUTER JOIN bug.
• Fixed a bug in parsing queries with parenthesis followed by NOT.

• Fixed a bug in running online backup with no arguments.

• Added option for running the Doctor without activating disabled indexes.

• Fixed a Doctor bug in fixing old (< 2.0) database files.

• Fixed a temporary file creation problem.
• Fixed a bug in size evaluation of cached query single results.
• Fixed internal NullPointerException-s (issues #365, #366, #368).

• Fixed a pessimistic locking deadlock (issue #342).

Version 2.2.7

• Added support of report generation using BIRT.
• Fixed a bug in query optimization of DISTINCT.
• Fixed a bug in keeping removed entity object in the L2 cache.
• Fixed orphan removal of owner entity object in bidirectional relationship.

• Fixed an "Attempt to persist a reference to a non managed instance" bug.

• Fixed internal NullPointerException (issue #331)
• Fixed internalArrayIndexOutOfBoundsException.

• Fixed a conflict with IBM J9 JVM by disabling unsafe optimization.
• Fixed a bug in applying nested eager fetch when enhancement is disabled.
• Fixed the "Annotated methods must follow the JavaBeans naming convention" exception (issue #325).

Version 2.2.6

• Fixed the "Attempt to reuse an existing primary key value" after flush bug.
• Fixed a bug in tracking changes to collections of new flushed entity objects.
• Fixed generated value (ID allocation) bug with flush and in EJB containers.
• Fixed a NullPointerException on getObjectsById.
• Fixed a server freeze (no response) issue.

• Fixed a NullPointerException in metamodel with embedded ID (issue #316).
• Fixed an error message for invalid query parameter (issue @320).

• Fixed pom.xml files in the Maven tutorials to use Java 1.5 / 1.6.

Version 2.2.5

• Added support of navigation through collections (as a JPQL extension).
• Added version display to the Server and Explorer About dialog boxes.
• Fixed an UPDATE/DELETE query bug in client-server mode.
• Fixed an ArrayIndexOutOfBoundsException in retrieval of large objects.
• Fixed Explorer display of user defined serializable objects.
• Fixed a bug in using NOT NULL in criteria queries.
• Fixed a bug in using strings in criteria queries.
• Fixed a bug in collection change tracking in a new entity object.
• Fixed merging entity objects of another EntityManager.
• Fixed a bug in concurrent EntityManagerFactory instantiation.

• Fixed a bug in comparison of collections to values in queries.

Version 2.2.4

• Added support of JPA UPDATE and DELETE queries (issue #12).
• Added support of pessimistic lock timeout (javax.persistence.lock.timeout).
• Added implementation of the getParametersgetParameters()Query's methodGet the parameter objects corresponding to the declared parameters of the query.See JavaDoc Reference Page... method.
• Added exception on pessimistic locking retrieval with no active transaction.
• Improved support of entity objects in criteria queries.
• Improved Explorer performance by disabling EAGER fetch.
• Fixed critical bugs in using flush.
• Fixed bugs in cascading merge.
• Fixed a multithreading deadlock bug.
• Fixed a bug in using JOIN FETCH with DISTINCT.
• Fixed Metamodel API's getTypeId method to support single ID field.

Version 2.2.3

• Added support of @ElementCollectionjavax.persistence.ElementCollectionJPA annotationDefines a collection of instances of a basic type or embeddable class.See JavaDoc Reference Page... (for setting eager fetch of non entity collections, such as List<String>).
• Improved performance of eager fetch in queries.
• Added Maven build enhancement to the bundled examples.
• Fixed a schema evolution bug in renaming user types.
• Fixed a bug in handling schema evolution (regression of 2.2.0).

• Fixed a bug in queries on large objects.

• Fixed a bug in using persistent properties with incomplete enhancement.

Version 2.2.2

• Changed log format to include date and time.
• Changed class loader management.
• Fixed handling multiple order expressions in inverse (mapped by) fields.
• Fixed the behavior of CacheStoreMode setting in L2 shared cache.
• Fixed TreeSet and TreeMap element comparison bugs.
• Fixed an Explorer bug in opening tables for selected rows.

• Fixed areplication configuration error.

Version 2.2.1

• Added support for using ObjectDB with JBoss AS 6.0 / 6.1.

• Fixed several bugs in handling eager fetch.
• Fixed a pessimistic locking bug.

• Fixed a bug in using primary key fields in queries.

• Fixed a bug in queries on deleted objects before commit / flush.

Version 2.2.0

• Added full support of JPA 2 Criteria Queries API (issue #10)
• Added full support of JPA 2 Metamodel API (issue #9)
• Added non optional field validation (throwing an exception on null value).
• Improved ObjectDB Doctor to handle additional issues.
• Improved query execution planner.
• Improved cleanup and reusing space after index deletion.
• Changed default configuration (enabled recovery, disabled recording).
• Fixed a critical database structure bug (issue #187).
• Fixed a critical bug in schema evolution of modified ancestor classes.
• Fixed a bug in handling indexes in a new ancestor class.
• Fixed a query cache bug.
• Fixed several bugs in query processing and running.

• Fixed a query execution bug when index with null keys is used.
• Fixed a bug in tracking field changes when a new value is the default value.

• Fixed a bug in creation of unnecessary nonclosed files.
• Fixed a ClassLoader conflict when using GlassFish.

Version 2.1.1

• Fixed an Explorer bug in handling listeners and callbacks.
• Fixed a bug in using user/password url arguments multiple times.
• Fixed several bugs in query processing and running.

Version 2.1.0

• Added Online Backup utility (issue #16).
• Added Master-Slave Replication / Clustering (issue #17).
• Added a PDF version of the ObjectDB manual (included in the download).
• Added sample (tutorials) Maven projects (included in the download).
• Added support of disabling optimistic locking exceptions.
• Added support of url arguments (";user=admin;password=admin").
• Changed default to NonTransactionalWrite enabled (issue #142).
• Fixed a bug in distinct queries (duplicates due to bad optimization).
• Fixed a bug in viewing TreeSet and TreeMap in the Explorer.
• Fixed detachment of entities by replacing proxy objects with ordinary objects.
• Fixed a schema evolution bug when adding a new super entity class.

Version 2.0.5

• Fixed Java Agent / Java EE / Spring enhancement bug.
• Fixed a bug in merging detached entity objects.
• Fixed unexpected NullPointerException in client server mode.
• Fixed an exception in AVG query on non numeric values (issue #107).
• Fixed a bug in handling JOIN queries with primary key fields.

Version 2.0.4

• Added support for JTA and Java EE Containers (issue #8).
• Fixed a bug in indexing entity objects.
• Fixed a bug in fixing broken references in ObjectDB Doctor.
• Fixed a bug in modifying enhanced detached embedded objects.
• Fixed a spring transformer (LoadTimeWeaver) problem.
• Fixed a class loader issue when using GWT/Jetty.
• Fixed a bug in using fields of embedded primary key in JPQL queries.

Version 2.0.3

• Added support for serialization of inverse (mapped by) collection fields.
• Fixed some activations issues.

Version 2.0.2

• Fixed a bug in queries on embedded objects in C/S mode.
• Fixed a bug in setting log directory path (missing URL decoding).
• Fixed a bug in automatic byte code enhancement in Java EE server.
• Fixed a bug in multi variable queries.

Version 2.0.1

• Fixed a bug in lazy loading of instances of non enhanced classes.
• Fixed a bug in using the Replayer with no updates to the database.
• Fixed an activation bug.

Version 2.0.0

• Improved processing of some sorts of queries.
• Added support for using ObjectDB with JPA 1 jar in the classpath.
• Changed server start avoiding new process creation.
• Added logging for class loading and method finding problems.
• Fixed a bug in the results of IS [NOT] NULL queries.
• Fixed a bug in ObjectDB Doctor.
• Fixed persistence.xml C/S connection property to "javax.persistence.jdbc.user".
• Fixed a bug in the new log based (recording) recovery from failure mechanism.
• Fixed a bug in finding an entity after a failed find followed by persist.
• Fixed a memory leakage in eager load of large object graphs.
• Fixed a synchronization bug in sequence value generation.
• Fixed some issues in query execution.
• Fixed ObjectDB Doctor to activate and rebuild also inactive (new) indexes.
• Improved performance of database insert/update/delete operations.
• Changed default configuration (for improved performance).
• Added support for running a server with no tray icon (using a -console flag).
• Changed EntityManager.find to return null when no object is found.
• Fixed a bug in closing database files.
• Fixed a bug in preserving order of @EmbeddedId fields.
• Fixed a NullPointerException during cache cleanup.
• Fixed a bug in database file converter (from ObjectDB 1.0 to 2.0).
• Fixed a bug in handling duplicate / missing JDO metadata.
• New error message when persisting a reference to a new (non managed) entity object.
• Fixed a bug in lazy loading of instances of non enhanced classes.
• Added Explorer support of ID / version / inverse (mapped by) fields.
• Fixed Explorer bug in closing database files.
• Fixed cascading through inverse (mapped by) fields.
• Fixed some bugs in automatic schema evolution.
• Fixed a Server/Explorer class loading bug (after schema change).
• Fixed a bug in the ObjectDB Doctor Tool.