ObjectDB Database Search

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Spring Data JPA - PersistenceException thrown

) 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

Finance data from SQL Server into ObjectDB daily

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

Wrong data stored in time only fields

This may be related to the fix for the problem described in this thread: Wrong data stored in date ... are using the 2015g time zone data . While we cannot see a problem with date only fields (more testing ... , but see further explanation of some odd values below. Here is the data used to create the 9 records: 2015-12-19 18:12:53,000

Data portability

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

JPA and handling large data sets

. But exporting large binary data sets is very slow. To avoid memory problems the binary data type is read step ... data sets the way is slow. We have an own entity for storing binary data (pictures, documents). Hint: The export enumerates all entities(=table) for exporting data . An overview of this problem

ObjectDB data migration/extraction

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

Import data from MySQL

mysql data into objectdb? gzdillon Lai Yang Currently to import data from other databases ... data from MySQL using JPA as entity objects, detach the retrieved entity objects and then persist them into ObjectDB. An automatic data conversion utility is expected to be implemented as

Retrieve data of all entity classes in a single query

I have in an objectdb file 10 Entity Classes with some data in each (Athlete, Trainer, Stadium etc) This is the code I use to retrieve all Managed Types and data for the Athlete class Metamodel ... ); } } Is there a way to get data of all classes without writing down 10 different queries (i.e. using the for loop

index - data rewrite

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

Query vs Extent for retrieving data

I'm running into a problem where data that is retrieved via a Query comes out null, but when I ... PositionReportBeans in reports. I can verify with the ObjectDB explorer that all of the data ... , true); I get an Extent back with all of the data as I would expect. However, if I execute a Query

Storing a tree of data (depth=3)

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

java.lang.ClassCastException in OSGi runtime when loading data from DB

ClassCastExceptions on my "entity" classes when I try to read data from the DB. In a very old (2011?) forum ... . The entity obviously has to get loaded by all bundles in order to manipulate the data . This is the code ... would mean doubling the classes and having to move data around between the Entities and DTOs. Many

Data migration from SQLServer to ObjectDB

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

data protection method in ObjectDB Embedded Mode

I am new in ObjectDB and i need to understand How is data protection in ObjectDB Embedded Mode without using  username or password thanks choymns choymns The way to keep an ObjectDB database encrypted is simply to store it on an encrypted drive. Modern operating systems support encryption

Wrong data stored in date only fileds

wrong data in the fields annotated with Temporal.DATE. The attached DB shows the problem

Using List to save data

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.

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

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

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

Query in Spring Data error Like for Integer records

Query in Spring Data error Like for Integer records

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

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

How to delete a specific column data form a entity.

How to delete a specific column data form a entity.

Out of memory

big (import lot of data from other source). I didn't catch the size of record log file. For now I ... ; lwalkowski Lukasz Walkowski Some new data . After 5 hours of running database memory usage is quite high ... and works fine. When you want to unfold object and check all the data , there is an exception: Exception in

Eclipse plugin problem (using ObjectDB as a separate bundle)

; Here is my scenario (Groovy 1.8 and Eclipse 3.6) used. I have a com.epimss.lab. data .toxicology.TherapeauticDrugScreenRqst. Nested in this class are the following two classes: com.epimss.lab. data .misc.OtherRqst and com.epimss.lab. data .misc.RequestDateAndNumber. In my Eclipse wizard performFinish() method I persist

multiple different applications access one odb file

would be for API and BI, one would need to read data from the xyz.odb and the other one would be for exposing the DB data via web services. Do all these apps need to have the same DB schema. The BIRT ... would like to use our APP but he asks how the data from the DB can be used to fill its DWH

Unexpected exception com.objectdb.o.PAG.N()" because "this.h"

us resolve this and ensure your data remains healthy, could you please perform the following steps? 1. Database Integrity Check Please run the ObjectDB Doctor tool on the relevant database file. We want to verify that the underlying database integrity has not been compromised by these exceptions. 2

What role is the JDO in ObjectDB?

was attempted. Java Data Objects (JDO) was inspired and supported primarily by the object-oriented ... the status of being an extension of the JDK, but never became an integrated part of the enterprise Java ... is more popular than JDO and it is has some important advantages such as better integration in Java EE

Use on GIS possible?

of AI and spatial data analysis, exploring how ObjectDB might integrate geospatial queries and data ... Do you have any plan to integrate GIS to objectdb like PostgreSQL's PostGIS. Its not hard to implement with AI in these days... Like searching Point , Polygon , geojson etc...  kadirbasol Kadir

StaticMetamodel throws NPE with Spring-Data in PathImpl.get()

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

jakarta.persistence.FetchType

strategies for fetching data from the database. The EAGER strategy is a requirement on the persistence provider runtime that data must be eagerly fetched. The LAZY strategy is a hint to the persistence provider runtime that data should be fetched lazily when it is first accessed. The implementation

jakarta.persistence.LockModeType

attempting to update the entity data . A lock with LockModeType.PESSIMISTIC_READ can be used to query data using repeatable-read semantics without the need to reread the data at the end of the transaction to obtain a lock, and without blocking other transactions reading the data . A lock

jakarta.persistence.CacheRetrieveMode

, Comparable , Serializable Specifies how the EntityManager interacts with the second-level cache when data ... that data may be read from the second-level cache. BYPASS indicates that data may not be read from ... explains how to use CacheRetrieveMode . Enum Constants BYPASS Bypass the cache: get data directly from

jakarta.persistence.AttributeConverter

the entity attribute into the data representation to be stored in the database. Parameters: attribute - the entity attribute value to be converted Returns: the converted data to be stored in the database column. Since: Jakarta Persistence (JPA) 1.0 X convertToEntityAttribute ( Y dbData ) Converts the data

jakarta.persistence.Cache

cls , Object primaryKey ) Whether the cache contains data for the given entity. Parameters: cls ... . Since: Jakarta Persistence (JPA) 1.0 void evict ( Class cls , Object primaryKey ) Remove the data ... Since: Jakarta Persistence (JPA) 1.0 void evict ( Class cls ) Remove the data for entities of the specified

jakarta.persistence.SchemaManager

Jakarta Persistence (JPA) Interface jakarta.persistence.SchemaManager Allows programmatic schema creation , schema validation , data cleanup , and schema cleanup for entities belonging to a certain ... data from any configured SQL scripts for data loading. If a SQL operation fails, the behavior

jakarta.persistence.CacheStoreMode.USE

Jakarta Persistence (JPA) Enum Constant in jakarta.persistence.CacheStoreMode USE Insert entity data into cache when read from database and insert/update entity data when written to the database: this is the default behavior. Does not force refresh of already cached items when reading from database. Since: Jakarta Persistence (JPA) 1.0

jakarta.persistence.SchemaManager.truncate()

Jakarta Persistence (JPA) Method in jakarta.persistence.SchemaManager void truncate() Truncate the database tables mapped by entities belonging to the persistence unit, and then re-import initial data from any configured SQL scripts for data loading. If a SQL operation fails, the behavior

jakarta.persistence.AttributeConverter.convertToEntityAttribute(Y)

Jakarta Persistence (JPA) Method in jakarta.persistence.AttributeConverter X convertToEntityAttribute (    Y dbData ) Converts the data stored in the database column into the value ... providers are not expected to do such type conversion. Parameters: dbData - the data from

jakarta.persistence.AttributeConverter.convertToDatabaseColumn(X)

Jakarta Persistence (JPA) Method in jakarta.persistence.AttributeConverter Y convertToDatabaseColumn (    X attribute ) Converts the value stored in the entity attribute into the data ... to be converted Returns: the converted data to be stored in the database column. Since: Jakarta Persistence (JPA) 1.0

jakarta.persistence.EntityResult

columns to related entities. The results obtained when insufficient data is available are undefined

jakarta.persistence.SecondaryTable

Jakarta Persistence (JPA) Annotation Type jakarta.persistence.SecondaryTable Implemented Interfaces: Annotation Target: Type Specifies a secondary table for the annotated entity class. Specifying one or more secondary tables indicates that the data for the entity class is stored across multiple

jakarta.persistence.SharedCacheMode

and entity-related state and data are cached. Since: Jakarta Persistence (JPA) 1.0 DISABLE

jakarta.persistence.PersistenceConfiguration

transactionType () The transaction type . If PersistenceUnitTransactionType.JTA , a JTA data source

Use temporary files to enable very large transactions

which this data is written to a temporary file. Even without speed optimizations, but with priority ... situation. For this, we need more information: What is the total size of data in the transaction ... ; What is the total size of data in the transaction? The total size is principle unlimited.    

jakarta.persistence.Cache.evict(Class,Object)

Jakarta Persistence (JPA) Method in jakarta.persistence.Cache void evict (    Class cls ,    Object primaryKey ) Remove the data for the given entity from the cache. Parameters: cls - entity class primaryKey - primary key Since: Jakarta Persistence (JPA) 1.0

jakarta.persistence.Cache.evict(Class)

Jakarta Persistence (JPA) Method in jakarta.persistence.Cache void evict (    Class cls ) Remove the data for entities of the specified class (and its subclasses) from the cache. Parameters: cls - entity class Since: Jakarta Persistence (JPA) 1.0

jakarta.persistence.PersistenceConfiguration.transactionType()

Jakarta Persistence (JPA) Method in jakarta.persistence.PersistenceConfiguration PersistenceUnitTransactionType transactionType() The transaction type . If PersistenceUnitTransactionType.JTA , a JTA data source must be provided via PersistenceConfiguration.jtaDataSource , or by the container

jakarta.persistence.CacheRetrieveMode.USE

Jakarta Persistence (JPA) Enum Constant in jakarta.persistence.CacheRetrieveMode USE Read entity data from the cache: this is the default behavior. Since: Jakarta Persistence (JPA) 1.0

jakarta.persistence.CacheRetrieveMode.BYPASS

Jakarta Persistence (JPA) Enum Constant in jakarta.persistence.CacheRetrieveMode BYPASS Bypass the cache: get data directly from the database. Since: Jakarta Persistence (JPA) 1.0

jakarta.persistence.CacheStoreMode.REFRESH

Jakarta Persistence (JPA) Enum Constant in jakarta.persistence.CacheStoreMode REFRESH Insert/update entity data held in the cache when read from the database and when written to the database. Force refresh of cache for items read from database. Since: Jakarta Persistence (JPA) 1.0

jakarta.persistence.SharedCacheMode.ALL

Jakarta Persistence (JPA) Enum Constant in jakarta.persistence.SharedCacheMode ALL All entities and entity-related state and data are cached. Since: Jakarta Persistence (JPA) 1.0