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Updating Entities

with Entities not sending their updates to each other. I have two Entities in question at the moment ... . However, once a change has been made to paygradeDB after this visual load - the Employee table refuses to update ... also know that my code handles updating a table accurately when the Overview controller is visible

ClassCastException on SELECT NEW ... after UPDATE over Java RMI

NEW ...) and UPDATE JPQL queries on the DB via the RMI interface. What we noticed is that once we UPDATE a record from the client (via the RMI interface), all SELECT NEW ... queries ... via RMI after the update. For example SELECT COUNT(*) ..., or SELECT r FROM ... all work fine. DB Doctor

Bulk update of embedded entities in linked list

Hi, I'm trying to do a bulk update of a column in an embedded entity, but I end up with a query ... . Example: int updateCount = em.createQuery( "UPDATE EntityA a " + "SET a.EntityBList.Column1 = :value ... " exception. How can I do update statements like that? Kind Regards, Roland r.steber Roland JPA Update queries

Cannot save or update entity on Spring App

update() { return em.createQuery("...").executeUpdate() > 0; } } While the fetching ... , nor it refreshes with its new id. And the update method fails because of this: [ObjectDB 2.8.0] javax.persistence.TransactionRequiredException Attempt to run update query when no transaction is active [PMImpl

Unable to execute update query

Hello! I'm trying to do an update query via the explorer to set a new field value for around 400k objects. UPDATE Position p SET p.originalData = null This exception raises when I try ... reading a temporary file that is used in an update query, but the cause is unclear, and according

CRUD Database Operations with JPA

it to store, retrieve, update and delete database objects. Storing New Entity Objects The following ... is a very powerful query language and chapter 4 of this manual describes it in detail. Updating ... when the transaction is committed. Updating an existing database object is similar

Running JPA Queries

other case. In addition, the Query interface defines a method for running DELETE and UPDATE queries: Query.executeUpdate - for running only DELETE and UPDATE queries. Ordinary Query Execution ... , they have to be caught and handled. DELETE and UPDATE Query Execution (with executeUpdate) DELETE and UPDATE queries

JQL-Update Queries fails with activated L2-Cache

When using JQL-Update Queries it is basically not working without calling entityManager.clear ... a container the updated Entities. Scenario 1: Disabled L2 Cache, updating elements using UPDATE-Query ... database - Actual result: No changes are visble. Scenario 2: Disabled L2 Cache, updating elements using

unclear syntax for update query

the syntax for selective update is unclear as the syntax in the documentation seems to be wrong. Query Update Action Set transferred = 0 where a.objectsInCharge.nodePath like "/(PR)W4455NS01 ... ===================== Unexpected query token 'a' Update Action Set transferred = 0

Step 1: Install BIRT and ObjectDB Driver

for Java EE Developers. Update your existing Eclipse IDE for Java EE Developers environment by installing the BIRT plugins using the Eclipse Update Manager (updating Eclipse IDE with no Java EE support is more complicated because of BIRT dependencies and is not covered here). To update an existing

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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