ObjectDB Database Search

1-50 of 200 results

ObjectDB Manual

Hello, I would like to be able to read or refer to the ObjectDB manual (v2) on my Kindle. Unfortunately, I didn't find any option to download the manual , either as a .pdf (most convenient) or as ... ) Is there such an option I'm unaware of on your website or could you make the manual available for offline

JDO manual

Request for a new JDO manual , covering ODB 2. dmoshal David Moshal Please subscribe to the ObjectDB 2 JDO Manual issue. Because writing a new manual and then maintaining two similar manuals , one for JPA and the other for JDO requires massive work, this will be done only if there is a sufficient demand. support Support

ObjectDB 1.0 Manual

. Feedback We would appreciate any comment or suggestion regarding this manual . Please send your comments or questions to support@objectdb.com .

Where can I learn how to use ObjectDB?

The best source for learning ObjectDB is the ObjectDB Manual , which contains all the necessary information for using ObjectDB. The only required background is a good understanding of the Java language. Reading the manual and getting started with ObjectDB could be easier for developers with prior

JPA Criteria Query Expressions

how whitespace should be trimmed ( LEADING , TRAILING , or BOTH ). For more details and examples, see the Query Expressions section in the ObjectDB manual .

JPA Named Queries Annotations

of the ObjectDB Manual . Query references Access named queries in the application by name or by using

JPA Attributes Annotations

. An enumeration defining the SQL type mapping: DATE , TIME , or TIMESTAMP . For more details, see the Persistent Classes chapter in the ObjectDB manual .

JPA Extended API Reference Guide

. For a comprehensive guide on using JPA with ObjectDB, refer to the ObjectDB manual .

JPA Queries

instructions, refer to the JPA Query API section in the ObjectDB manual . Criteria query API

JPA Named Queries

) JPA providers and less so for ObjectDB, this manual does not cover that alternative. Using Named

JPA Value Generation Annotations

columns. For more details about automatic value generation, see the Generated Value section in the ObjectDB Manual .

ObjectDB - JPA Object Database for Java

Mapping (ORM) tools can reduce some manual work but cannot eliminate the extra processing time

JPA Container Injection Annotations

a dependency on an EntityManagerFactory , useful for creating EntityManagers manually or accessing factory

JPA Metamodel and Graphs

and further explanation, refer to the JPA Metamodel API section in the ObjectDB manual . Criteria query

What's next?

This chapter introduced the basic principles of JPA with ObjectDB. For more details, see the other chapters in this manual . To start using ObjectDB immediately, follow one of the tutorials below to create and run the example program from this chapter: These tutorials explain how to run the example

CRUD Database Operations with JPA

of this manual describes how to use JPA for database operations in more detail.

ObjectDB 2 JDO Manual

The new ObjectDB Manual describes how to use ObjectDB 2 with JPA. An additional manual that focuses on using ObjectDB 2 with JDO can help JDO users. But since writing a new manual and then maintaining two similar manuals , one for JPA and the other for JDO requires massive work

probable error in text of manual about embeddable classes

probable error in text of manual about embeddable classes

jakarta.persistence.criteria.CriteriaUpdate

optimistic locking checks. Portable applications using bulk update operations must manually update the value of the version column, if desired, and/or manually validate the value of the version column

Step 7: Run the Spring Web App

. To install a new server check the Manually define a new server radio button (after Run As Run on Server ... ; ObjectDB Explorer : This is the end of the tutorial. Learn more about ObjectDB and JPA by reading the  Manual .

Soft Reference Object Cache Recommendation

myself and, upon detecting a full JVM GC,  manually evict JdoBlob2s from their relevant PersistenceManager ... , including manually allocating a 1 GB softly referenced byte[] that immediately gets GC-ed on a full GC ... all objects in a manual strong reference list and upon GC detection manually remove the strong

JDO sequences from ORM file

for this type of file, though I can't see a mention of it in the manual . But I've tried creating one as ... It is supported, but not mentioned in the manual , because the new manual focuses on JPA (the old JDO manual

Updating Entities

of the UPDATE query manual page : Updating entity objects in the database using an UPDATE query ... is a very basic principle of JPA. See this manual page . You should have read it in the manual ... ).  As I identified (and is noted in the manual you linked) - objects within two separate

Step 4: Run the Application

: This is the end of the tutorial. Learn more about ObjectDB and JPA by reading the Manual .

Step 2: Define a JPA Entity Class

Manual . But nevertheless, this class is a valid ObjectDB entity class, despite the warning

Step 6: Run the Java EE 6 Application

: This is the end of the tutorial. Learn more about ObjectDB and JPA by reading the Manual .

Step 4: Run the Application

by opening it in the ObjectDB Explorer : This is the end of the Eclipse JPA tutorial. Learn more about ObjectDB and JPA by reading the Manual .

Step 6: Run the Web Application

the database file in ObjectDB Explorer : This is the end of the tutorial. Learn more about ObjectDB and JPA by reading the Manual .

Getting Started with JPA

. The sample application is also explained in details in  Chapter 1 of the  ObjectDB Manual , but if you prefer

Step 6: Run the Java EE 6 Application

server and open the database file in ObjectDB Explorer : This is the end of the tutorial. Learn more about ObjectDB and JPA by reading the Manual .

Step 6: Run the Web Application

of the tutorial. Learn more about ObjectDB and JPA by reading the Manual .

Step 2: Define a JPA Entity Class

definition in an XML file is missing. This is discussed in the ObjectDB Manual

Online Backup in client-server mode

should be created. See also the ObjectDB manual . support Support Hello, Thank You, I missed that part in the ObjectDB manual . Indeed we've had the File as the parameter. But now ... - that is also the behaviour as described in the manual : "When a string is specified as a value for the target

ObjectDB CRUD Examples

these manual pages . We do not have specific NetBeans examples in addition to  the tutorials ... this is really the only place to start... ThreaT Ashton Hogan Please consider reading the entire manual ... cannot replace the manual , which has to be read. support Support

Query problem after transaction commit

printing result 31 [start database explorer on server manually ] 32 searchGoods: start query 33 SELECT u ... on server manually ] searchGoods: start query SELECT u FROM Goods u where u._code like :code code ... explorer on server manually ] searchGoods: start query SELECT u FROM Goods u where u._code like :code

Where Does ObjectDB Block/Lock?

at transaction.commit() if optimistic=true? 5) ObjectDB 1.0 Manual (Support Knowledge Base ObjectDB 1.0 Manual 5. JDO Connections 5.3  javax.jdo.Transaction Automatic Lock Management Last sentence)  ... and therefore ObjectDB 1.0 Manual's  statement suggests datastore transactions (optimistic=false) would be faster

Is there a function of "drop table" or "delete from table"?

FROM MyEntity e").executeUpdate(); This is implemented since version 2.2.4 but the manual has not ... () cause exceptions. Yes, you'd better to put it into manual , since "drop table" is often in debugging ... the manual . About your other question - I will move it to a separate thread. Please follow the 

Removing objects where ManyToMany relationships exist

; Would I need to manually go through all Entities in the database to check if there's a TreeSet where an entry points to an to-be-removed OtherEntity, to remove it from the Set manually ? Hope not

ObjectDB throws `NullPointerException` in internal code (`com.objectdb.o.ENH.b`)

are described in the manual , for example, the server must be restarted after any schema change. If possible ... Perić You can find the relevant guidelines in the following sections of the manual : Database Schema

connection pooling

how do you handle connection pooling?  I don't understand how to open and close connection, or reconnect. I've referenced the manual here, but where does this go:   The element   ... them when it creates new EntityManager instances. See this manual page for more information on working

explorer feature request: ability to auto refresh

Request for feature: Ability to auto-refresh an explorer view, say at regular intervals of a few seconds. (at a minimum one ought to be able to manually refresh, for example the list of persistent ... but are now disabled - including editing, basic querying and manual refresh. support Support thanks, I

Composite indexes

Hi, I read your manual about defining Indexes for JPA Entities (http://www.objectdb.com/java/jpa/entity/index), but I still have some problems understanding how and when should I use them.   ... on the order of the indexed fields as explained in the Indexes in Queries section of the manual . In

Cascading (persist) with a mix of enhanced and not enhanced entities

EmbeddedSystems According to the manual : "There is one case, however, where enhancement is required. Non ... must also be enhanced." In addition, although not specified in the manual , if a class is enhanced

Dirty checking

is manually calculating changes specific to each of the 60 request types, which is error-prone ... . and, having to manually save each one. Question: What's the best way to cascade persistence of Entities

multi EntityManager with Spring Boot, but 'Too many persistable types (>10)

the activation code in the configuration file.  See this manual page , regarding where ObjectDB ... is same.) any suggestions? Tsu Masaaki Tsugami See  this manual page , regarding where ObjectDB

[ODB1] Chapter 8 - ObjectDB Server

has to be restarted manually to apply configuration changes. The element The element specifies the data

combined index not used

to the log if this threshold is exceeded again. Ability to manually select the query plan ... with multiple JOIN operations with very slow execution time you may be able to manually select the best query plans for these queries as a quick workaround. support Support To manually select a query plan

cannot delete objects after crash (see issue 2283)

, too ? Recording enables manual recovery by running the Transaction Replayer . - is the replication possible ... indicated in the manual ). Modern OS and disk managers may optimise IO operations by reordering them. In

objectdb.home for client/server

Currently, we do need to manually setup the objectdb.home property eventhough we're working on client/server mode. However, without setting this in our client, he complains about the missing ... an error. In the manual  you can learn about the default ObjectDB home directory and the path

Removing of an entity removes also another entity type

the ObjectDB  manual : Updating entity objects in the database using an UPDATE query ... EntityManager . See also this relevant paragraph in the ObjectDB manual : Removing entity objects from