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As noted above, using ObjectDB instead of a relational database and ORM  combination is easier and leads to better performance. ORM tools, however, are very useful where the use ... performance and use a JPA ORM provider (Hibernate, TopLink, EclipseLink or DataNucleus) to access relational

Reference (JavaDoc) of JPA 2 ORM annotations.

I am using JPA programaticaly..ie without xml file, and i would like to define Default Entity ... Mahmoud Defining default listeners is one of the few things that currently require XML metadata ... when my objects are persisted, without using XML , and without defining listeners for each classe

Hi, I have database utility classes in one project, the id's use sequences declared in an orm . xml ... ;       and the persistence. xml references this orm . xml :     ... -INF/ orm . xml                 

I prefer to keep custom JPQL named queries in an external file, e.g. orm . xml , rather than in the entity classes, for example: delete from DataValue d where d.capabilityId = :capabilityId and d.creationtime

that are added to the default META-INF/ orm . xml mapping file. Every annotation that is described in ... is optional when using ObjectDB, but required by JPA. persistence. xml Persistence units are defined in a persistence. xml file, which has to be located in the META-INF directory in the classpath

. orm file, where X is a value passed to the PersistenceManagerFactory as the value of property ... (that are part of every build), but in a package.jdo file rather than an  orm file. Maybe the problem is in loading the XML metadata? Can you check that other settings in that XML file affect

the ObjectDB configuration or in a JPA portable way, by specifying the cascade-persist XML element in the XML mapping file: The mapping file has to be located either in the default location, META-INF/ orm . xml ... persistence. xml ). Batch Store Storing a large number of entity objects requires special consideration

listeners can only be specified in a mapping XML file because there is no equivalent annotation: The mapping file has to be located either in the default location, META-INF/ orm . xml , or in another location that is specified explicitly in the persistence unit definition (in persistence. xml ). Default

Country { ... } Note: Named queries can be defined in JPA XML mapping files instead of using the @NamedQuery annotation. ObjectDB supports JPA XML mapping files, including the definition of named queries. But, because mapping files are useful mainly for Object Relational Mapping ( ORM ) JPA providers

Hello Support-Team, we have a problem with the enhancer. In the persistence. xml are two mapping-files: META-INF/ orm . xml META-INF/ormreq. xml We start the enhancer and the entities of orm . xml ... .impl.NamedElementImpl [java] com.btc.ep.base.bl.impl.ProfileImpl   And the entities of ormreq. xml

:    com.objectdb    objectdb    2.4.3   Persistence. xml com.objectdb ... the server on port 6136. Did not figured out how to create an empty db! Then I updated persistence. xml like ... org.springframework. orm .jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:427) org

of the Spring dispatcher servlet to the web. xml configuration file and to configure that servlet using another xml configuration file. Open the web. xml file (under Web Pages WEB-INF) in a text editor (by right clicking and selecting Edit or by double click and then moving to the XML tab in the editor window

(which is required by some ORM JPA providers) is defined in the entity class or not. Pessimistic Locking The main ... ;The hint can be set in several scopes: For the entire persistence unit - using a persistence. xml  

of the Spring dispatcher servlet to the  web. xml configuration file and to configure that servlet using another xml configuration file. Open the  web. xml file (under src/main/webapp/WEB-INF) in a text ... of the  web. xml file with the following new content: spring org.springframework.web.servlet

, so they are useful only for classes that are also in use with an ORM JPA provider (such as ... fields are essential for collection fields when using ORM JPA implementations, but not when using ... because a version field is inherited by subclasses. Unlike ORM JPA providers, ObjectDB always manages

Mapping ( ORM ) tools can reduce some manual work but cannot eliminate the extra processing time ... and eliminates the ORM layer. The result is better performance and faster applications, especially ... database with JPA support in one product , sparing the need to integrate an external JPA ORM

All about JDO Annotations for Mapping (ORM) in Java/JPA database - explanations, examples, references, links and related information.

Relational Mapping ( ORM ) tool, such as Hibernate, TopLink, EclipseLink, Open JPA or DataNucleus. The DataNucleus ORM implementation supports also the Java Data Objects (JDO) API. ObjectDB is a full featured standalone Object Database Management System (ODBMS) and not an ORM tool, so it is not intended and cannot be used to access other database management systems.

, string literals are also case sensitive (e.g. " ORM " and " orm " are different values). A Minimal JPQL

. These implementations are Object Relational Mapping ( ORM ) tools. The mapping bridges between the data ... you can keep your application portable. The unique benefit of using ObjectDB is that the overhead of an intermediate ORM

, eliminating the intermediate ORM layer further accelerates applications. For instance, ObjectDB processes JPQL (JPA Query Language) and JDOQL (JDO Query Language) queries directly, where ORM tools first

other JPA annotations are designated for Object Relational Mapping ( ORM ) JPA providers (for mapping between a relational database and an object model and for direct SQL queries): These ORM annotations are silently ignored by ObjectDB.

some ORM JPA providers) is defined in the entity class or not. It can be disabled by setting the 

only useful in applications that use an ORM -based JPA provider (such as Hibernate, TopLink, EclipseLink

relational database by using an ORM  JPA provider such as Hibernate, EclipseLink or Open JPA

= GenerationType . TABLE , generator ="tab") @Id long id; } ORM -based JPA providers (such as Hibernate

or convert objects to records/records to objects using SQL or ORM , as opposed to when using

knowledge of database programming (SQL, JDBC, ORM or JPA) is not required in order to follow this guide

Relationships are persistent fields in persistable classes that reference other entity objects. The four relationship modes are represented by the following annotations: Unlike ORM JPA implementations, ObjectDB does not enforce specifying any of the annotations above. Specifying a relationship

are more portable to ORM JPA implementations and provide better automatic change tracking support. UPDATE

and is much faster  than any ORM -based JPA implementation. ObjectDB Software's customers include

to get an EntityManager instance. JPA requires the definition of a persistence unit in an XML file in order ... persistence unit in an XML file or you can simply provide the file path of the ObjectDB database

using XML and annotations. Zero administration. Documentation Compressive, up to date, searchable ... Criteria Query API . Static definition ( named queries ) in annotations (@NamedQuery) and XML . Query

of the new created project is contained in a  pom. xml file that was created in the project main ... files from Maven repositories - open the  pom. xml file and in the pom. xml tab  use  ... .springframework spring- orm 3.0.5.RELEASE aopalliance aopalliance 1.0 cglib cglib 2.2 org.aspectj aspectjweaver

the project. The configuration of the new created project is contained in a pom. xml file that was created ... and to automatically download the required JAR files from Maven repositories - open the pom. xml ...        org.springframework    spring- orm    3.0.5.RELEASE

): For the entire persistence unit - using a persistence. xml  property:     

the [Provider and Database] step just click Finish to generate a default persistence. xml file ... JPA persistence unit (with default settings) was generated in a persistence. xml file that was added to the project (under Configuration Files). Open the persistence. xml file in a text editor (by right

entity class. In the [Provider and Database] step click Finish to generate a default persistence. xml ... JPA persistence unit (with default settings) was generated in a persistence. xml file that was added to the project (under Other Sources src/main/resources META-INF). Open the persistence. xml file in

a META-INF/persistence. xml file: Open the [New Folder] dialog box, e.g. by right clicking the project ... , select New File , enter persistence. xml as file name and click Finish . Verify that a new persistence. xml file was created as shown below: Finally, use copy and paste to copy the following content

by setting a  META-INF/persistence. xml file: Right click the src/main/resources node (in ... Explorer] window, select  New File , enter  persistence. xml as file name and click  Finish . Verify that a new persistence. xml file was created as shown below: Finally, use  copy

file. ObjectDB is shipped with a default server configuration file named default. xml ... .Server -conf config. xml start If you name your configuration file server. xml , you do not need ... . xml file if the –conf parameter is not used. Also, if you do not use the –conf parameter and do not

the controller in the previous step). The next step (and the last in this tutorial) is setting the Spring XML configuration .

. xml file) and port 8080 has to be available for the Jetty embedded server. No need to download

indicates that a persistence unit definition in an XML file is missing. This is discussed in the ObjectDB

; persistence. xml file - instead of RESOURCE_LOCAL you will have to specify  JTA . To enable on the fly

The current directory should be points-console (containing the pom. xml file). No need to download

jetty:run The current directory should be  guestbook-spring (containing the  pom. xml file

A JDO metadata file is an XML file with a '.jdo' suffix, containing information about one or ... ;Metadata for Classes We start with a basic JDO metadata file: A JDO metadata file is an XML file ... explained in section 4.5 . 4.4  Arrays, Collections and Maps Special XML sub elements

. To become persistent, a class has to: be declared in a JDO metadata file in XML format. include ... a special XML file, called the JDO metadata file. The Person class must be declared in a metadata