ObjectDB Database Search

in spring- data -jpa named queries are used to implement repository interface methods, see http://static.springsource.org/spring- data / data -jpa/docs/current/reference/html/#jpa.query-methods.named ... (SharedEntityManagerCreator.java:310) at $Proxy24.getParameters(Unknown Source) at org.springframework. data .jpa

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

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

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

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

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

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

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

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

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

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

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

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

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

...]] [ORDER BY ...] The SELECT and FROM clauses are required in every query that retrieves data ; update

, criteria queries, and JPQL for data retrieval and manipulation. Describes the metamodel and graph APIs

an alternative way to delete entities. Unlike SELECT queries, which retrieve data from the database

all JPA implementations. Unlike most other JPQL components, string literals (which represent data

multiple values (even for a simple data structure such as a collection of strings). In addition

-level cache. Use it to check if specific entities are cached or to evict data to ensure

ObjectDB is an Object Oriented Database Management System (ODBMS). It provides all the standard database management services (storage and retrieval, transactions, lock management, query processing, etc.), but it uses an object oriented model to store and manage data . You can easily store ordinary

these changes explicitly in the configuration to avoid data loss. The Schema Update section in Chapter 6

GOODS OR SERVICES; LOSS OF USE, DATA , OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED

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

of program errors, compliance with applicable laws, damage to or loss of data , programs or equipment

other cases, the expectation of a single result might be incorrect, depending on the data in the database

is the main data provider within our solution. In the past we often discovered performance problems ... data access on a large 2 dimansional table. Internally we used a list entities which hold a list ... . Creating and traversing. For the traversing we access the data block by block - in each block step by

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

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

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

, 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 ... how to use CacheRetrieveMode . Enum Constants BYPASS Bypass the cache: get data directly from

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

, Object primaryKey ) Whether the cache contains data for the given entity. Parameters: cls - entity ... . 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 class

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

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

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 (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 (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 (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

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 [Projects] window under Source Packages) and selecting New

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