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Logical operators in JPQL and JPA criteria queries combine simple Boolean expressions to form complex expressions. Logical operators ObjectDB supports two sets of logical operators, as shown in ... for NOT . Criteria query logical operators Boolean expressions and predicates In criteria queries

the building blocks for defining query logic programmatically. The hierarchy of the expression ... represent the fundamental building blocks for query logic : The root interface for all query expressions ... WHERE and HAVING clauses. An enum defining the logical operators ( AND , OR ) used to combine multiple

standard Java logic . For example, null == null evaluates to true . All other operators ( = , , , = ) follow SQL logic , where NULL represents an unknown value. Any expression that includes an unknown ... . The equality operators ( = , , == , != ) follow the logic of Java's equals () method, comparing content

Jakarta Persistence (JPA) provides lifecycle callback annotations to trigger custom logic ... applied to this class. Persistence (creation) events Use these annotations to handle logic when saving new ... Trigger logic after retrieving data from the database: Executes after an entity is loaded into

[OF] String operator : [NOT] LIKE Logical operators : AND , OR , and NOT JPA queries also support predefined ... , between , isNull , …) Logical expressions ( and , or , not , isTrue )

clause, representing roots, joins, and fetches. General expressions used within query logic , such as predicates for the WHERE clause, mathematical operations, and conditional logic . Helper interfaces for manipulating temporal expressions and date/time components.

JPQL expression syntax , which includes many operators (arithmetic, relational, and logical ... arguments and combines them using a logical AND , overriding any previously set predicate: For example

Jakarta Persistence (JPA) provides annotations to define static, reusable queries at the class level, separating query logic from business code. Query definitions Declare named queries using the following annotations: Specifies a static, named query in the Jakarta Persistence Query Language (JPQL

Jakarta Persistence API (JPA) 3.2 documentation, generated from the official JavaDoc and enriched with practical notes. It groups the API types into logical sections to help you locate core concepts, query facilities, metamodel details, configuration options, annotations, and exception information

generator logic at the class level using these annotations: Defines a named primary key generator

( equal , notEqual , gt , ge , lt , le , between , isNull , ...) Logical expressions ( and , or , not

A JPA persistence unit is a logical grouping of user-defined persistable classes (entity classes, embeddable classes, and mapped superclasses) and their related settings. Defining a persistence unit is optional when using ObjectDB but required by JPA. Programmatic configuration

The following code doesn't respect the logical "or" correctly. Instead of returns all 2 datasets it returns only this one, which matches the first predicate in the or. BUT: this happens only, if the field for the "or" is the first one defined as @Id. public class OrTest {     

. Since: Jakarta Persistence (JPA) 2.0 The Logical Operators in JPQL and Criteria API article explains

when ordering the results of some projection when the order by expression is different (though logically ... , otherwise the same result may have multiple different order values. Your third query, although logically ... , it will be your responsibility to avoid ORDER BY expressions that are also logically wrong. support Support Confirmed

when providing specific raw data where additional business logic is not required. I suppose you could create transient entities for data that does require additional business logic

that replaces a logical path with a parameter (similar to $objectdb in the url) with a value from ... and business logic ops) CoreWeb (common JSF managed bean classes that only speak to DB via EJBs) SpecWeb1

is, that we need the same logic for temporary users (without storing in DB) and permanent users (stored in database). A separate POJO makes the whole logic quite complicated. Any thoughts

whether the cause is due to a problem in the logic of 1/ or in the logic of 2/ Thanks again   

Hello, we must change (extend) our entity model and therefor we convert the type of some entities. As example (like in the attached example): We have an EntityA that have a reference to an EntityB. But now we introduced as example a new Entity NewKindOfEntityB. And we have a defined logic

also had: typedQuery.setFlushMode(FlushModeType.AUTO); for the specific query.   If I change the logic

Hi, I'm trying to implement some reporting logic in my application and got nasty exception when using query with join. The query code is: TypedQuery inspirationQuery = em.createQuery(     "select new InspirationsPerSupplierResult(insp.id, insp.name, p.id, p.name) from

installer, instead I just unzipped it in a logically named directory. (3) Verify maven 3 is installed

and use a separate thread for every logical subject. support Support I did, sorry caitanya Caitanya

seems logical , and hopefully could be implemented in one of the next builds. support Support Build 2.6.7_03

encountered this I had to remove @Enumerated with Long, and add ids for each Enum in my logic

around the 'or'. Hence, my logic conditions is failing. The same EJB running against my eclipselink

Support Hi But it physically present and logically it will not display. If a want to drop or delete

() it with every transaction (in an application with one thread handling all the business logic ) ? dmoshal

Hi, I realised that I have a mistake (from application logic point of view) in one of my JDO metadata files:                                            All of these 3

the lookup is also part of same transaction so it should be aware of the persisted object. The logic

) ~[na:na] at com.bi.objectDB.core. logic .SupplierInformationService.findCategoryCount

detail all the code of generic functions, but a piece of logic is this: private void root(Class type

Hello, our Entities contains logic that we need to test. Therefore we have unit tests for all our entities. We build and test our components with Jenkins-CI. We want to test that what we release to our customers. Therefore we think we need to test the enhanced classes. But that distorts our test

across these tasks? I would include some synchronization logic to ensure that each thread

, rather than writing special logic when you need just a small modification. It's a habit from RDBMS

with application logic before being committed to the database, so a commit will never fail. Any time

seems a logical choice to me if we can get it working .. Can anyone help please ? Thank you Paul Newman

when providing specific raw data where additional business logic is not required. I suppose you could create transient entities for data that does require additional business logic though. ThreaT

. The logic of the TestQuery and the Page JSF are no different from that of your own JavaEE tutorial

; but if you can't use these fields in logical expressions like "and" is a big problem.