ObjectDB Database Search

Refresh data in application after database data has changed

.GenericTypeResolver.getTypeVariableMap(Ljava/lang/Class;)Ljava/util/Map; from class org.springframework. data .util ... org.springframework. data .util.ClassTypeInformation at org.springframework.beans.factory.support ... .springframework. data .util.ClassTypeInformation at org.springframework. data .util.ClassTypeInformation

Hello! When i configure Spring Data JPA to use ObjectDB 2.4.0_03 i get an exception ... .getMetamodel(Unknown Source) at org.springframework. data .jpa.repository.support.JpaEntityInformationSupport.getMetadata(JpaEntityInformationSupport.java:56) at org.springframework. data .jpa.repository

system. However we want to work on one of the aspects that is the data should be able to pulled out of the ObjectDB to some sort of Big Data File system or Relation DB for reporting / analytics ... our OLTP to be affected by data intensive reporting and analytics requirements. This could be handled

Table contains all necessary Data . Most of the others  contains all  Object-Rows ... More information is needed (e.g. about your method exportToCSV ). support Support The Data is even missing in ... ) then you must make sure that data is fetched from the database before you your first reflection operation

) at com.sun.proxy.$Proxy13.getMetamodel(Unknown Source) at org.springframework. data .jpa.repository ... ) at org.springframework. data .jpa.repository.config.JpaMetamodelMappingContextFactoryBean.createInstance(JpaMetamodelMappingContextFactoryBean.java:56) at org.springframework. data .jpa.repository

data mart that is appended to daily via an SSIS package. I would like to pull the data from SQL, add ... other JPA implementations to retrieve data from RDBMS tables and then use the same JPA entity classes to store the data in ObjectDB. support Support Hi -   Thanks for getting back to me. I'm unfamiliar

Hi, I've never used an OODB, I'm looking for a starting point but a recurrent concern is the Data Portability one. More clear: what options / strategies do I have to export / move my data ... Portability (based on JPA/JDO standards), but what about Data Portability? Regards, lorenzo.sm Lorenzo

Hi What is the way to extract data from ObjectDB to relational databases (Oracle). We need to feed an Oracle database with data for reporting/datawarehosing. Should JPQL be used or is there some ... , so you will have to migrate data using your own code. Notice that you should be able to use ObjectDB with BIRT to produce

Hi we have found that applying indexes on an existing table erases the data . Are we doing ... carefully if data is missing (very unlikely) or queries fail to return results (possible if a new ... change )? What data is missing? Complete objects? specific fields in objects? fields related

of the data tree +1 I'll explain it here: A movie is an entity (like the book) A movie has a list of roles ... @Entity and @Embeddable) and a roleName (String) There are other data like list of directors, list ... regards, Thomas APPENDIX : I'm using lombok ... @Entity @ Data @NoArgsConstructor

I am working on a Spring Boot application. I want to integrate ObjectDB with Spring Data JPA. I refer to the http://www.objectdb.com/database/forum/860 to do the configuration. When I start ... org.springframework. data .jpa.domain.AbstractPersistable.id at com.objectdb.o.MSG.d(MSG.java:62

Hi, could someone recommend a good tool to use for data migration from SQLServer to ObjectDB. irene05 irene lan Unfortunately there is currently no such automatic tool. Using a JPA ORM library (e.g. Hibernate or EclipseLink) you can write your own conversion program that retrieves data from

Hello, How can I save data dynamically such as "List" in Java - ArrayList, LinkedList, etc. thanks Seena Abdollahi Seena Abdollahi Software Engineer sabdollahi Seena Abdollahi Lists are persisted automatically as fields of entity classes. See chapter 2 and 3 of the manual for more details. support Support

Significant I/O costs during batch update or insert data.

em.flush(); em.clear(); loosing data and not persisting managed objects

Query in Spring Data error Like for Integer records

using objectdb.jar in writing data to mariadb or mysql db

to the schema as expected, however their type is set to unknown - we were expecting Boolean. The attached ... ) is set to unknown. Both are defined as Boolean in Java code. As a result, update operations ... like the following fail to change the value from null to false: UPDATE RecordingMetaData AS r SET r

To access relational databases using the Java Persistence API (JPA) you will need an Object 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

, damages for loss of data or profit, or due to business interruption,) arising out of the use or

ObjectDB Software develops, markets and supports the ObjectDB Object-Oriented Database Management System (ODBMS). ObjectDB Software is the market leader in providing a very high performance persistence solution for Java, based on the Java Persistence API (JPA) and the Java Data Objects (JDO

clauses are explained: ObjectDB also supports the Java Data Objects (JDO) Query Language (JDOQL

, MOD, NEW, NOT, NULL, NULLIF, OBJECT, OF, OR, ORDER, OUTER, POSITION, SELECT, SET , SIZE, SOME, SQRT

The way a field of a persistable class is managed by JPA can be set by the following annotations: Additional annotations (and enum) are designated for enum fields: Other additional annotations (and enum) are designated for date and calendar fields: Chapter 2 of the ObjectDB manual explains how to use all the above annotations.

the picture by describing some tools and settings that are specific to ObjectDB:

all the Country instances to zero: int count = em. createQuery ("UPDATE Country SET area = 0

The JPA Criteria API interfaces in this group are used for setting the SELECT and ORDER BY clauses and for representing query results as tuples. SELECT Clause Elements The content of the SELECT clause in a criteria query is represented by Selection : Because Selection  is a super interface

directory can be specified by setting the target parameter before executing the backup query:  

JPA defines three types of persistable classes which are set by the following annotations: Chapter 2 of the ObjectDB manual explains these annotations in detail. Entity and mapped super classes can be further configured by annotations that specify cache preferences and lifecycle event listener

A JPA Persistence Unit is a logical grouping of user defined persistable classes (entity classes, embeddable classes and mapped superclasses) with related settings . Defining a persistence unit is optional when using ObjectDB, but required by JPA. persistence.xml Persistence units are defined in

The interfaces in this group are in use for setting a criteria query FROM clause. Criteria Query Variables The FROM clause  in JPA queries (as in SQL) defines the query variables. Query variables are represented in criteria queries by descendant interfaces of the From interface: Range

Spring- Data i got a NullPointerException in com.objectdb.jpa.criteria.PathImpl

to set numeric value of field property com.greensoft.objectdb.test.entity.Element.id using reflection ... " [ObjectDB 2.6.9] javax.persistence.RollbackException Failed to commit transaction: Failed to set numeric ... : com.objectdb.o.UserException: Failed to set numeric value of field property com.greensoft.objectdb

Operations on the database will be performed by an instance of a Data Access Object (DAO) that we will define in this step as a Spring MVC component: Open the [New Java Class] dialog box by right clicking the guest package node (in the [Package Explorer] window) and selecting  New Class

file name (e.g. report.rptdesign ) and click Finish. The next step is creating an ObjectDB data source .

+ ")"; } } The Guest entity class will represents guests in the database. We also need to configure JPA by setting

; copy and paste to replace its content with the following settings : 4.0.0 com.objectdb.tutorial

qualified class name is set (you may use copy & paste). Click the Finish button to create

file and use copy and paste to replace its content with the following settings : 4.0.0 com.objectdb

JPA persistence unit (with default settings ) was generated in a persistence.xml file that was added

that have already signed (which are retrieved from the request's "guests" attribute that is set by the servlet in

by setting a  META-INF/persistence.xml file: Right click the src/main/resources node (in

JPA persistence unit (with default settings ) was generated in a persistence.xml file that was added

that have already signed (which are retrieved from the request's "guests" attribute that is set by the servlet in

from the request's "guests" attribute that is set by the servlet in the previous step). The next step

" attribute that is set by the servlet in the previous step). The next step (and the last one in this tutorial) is running the web application .

You can use ObjectDB with either the Java Persistence API (JPA) or the Java Data Objects (JDO) API. Both share similar architecture, design and abilities. When to prefer JPA JPA is more commonly used. Therefore, it might be the first choice for most new applications. You can use JPA as

JDO supports two modes of persistable classes that can be set by the following annotations: Non persistable classes that should be enhanced (because of accessing persistent fields of other classes directly) can be marked with: The identity mode of persistence capable classes can be specified by using:

The way a field of a persistable class is managed by JDO can be set by the following annotations and enum types: