ObjectDB Database Search
1-33 of 33 resultsLogical Operators in JPQL and Criteria API
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
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JPA Criteria Query Expressions
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
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JPA Query Expressions (JPQL / Criteria)
[OF] String operator : [NOT] LIKE Logical operators : AND , OR , and NOT JPA queries also support predefined ... , between , isNull , …) Logical expressions ( and , or , not , isTrue )
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JPA Queries
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.
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WHERE clause (JPQL / Criteria API)
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
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JPA Named Queries Annotations
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
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JPA Extended API Reference Guide
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
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JPA Value Generation Annotations
generator logic at the class level using these annotations: Defines a named primary key generator
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Logical "or" works not correcly when field is @Id and first position
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 {  
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jakarta.persistence.criteria.Predicate
. Since: Jakarta Persistence (JPA) 2.0 The Logical Operators in JPQL and Criteria API article explains
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Problem with distinct select, order by and equivalent alias/attribute path
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
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ObjectDB Server Connection Permissions
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
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ObjectDB within a resource adapter module and Java EE Connector Architecture
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
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@Entity saved in Tomcat session - problem
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
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Attempt to open a non existing file '/tmp/objectdb_xxxx/SortQueryItr_6.mrg'
whether the cause is due to a problem in the logic of 1/ or in the logic of 2/ Thanks again  
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Update Entity references if we change the type of an entity
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
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Exception on creation when running multithreaded
also had: typedQuery.setFlushMode(FlushModeType.AUTO); for the specific query. If I change the logic
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Join query problem with new statetment
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
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How to resolve 404 errors with Eclipse/Maven Spring MVC
installer, instead I just unzipped it in a logically named directory. (3) Verify maven 3 is installed
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Beginners questions
and use a separate thread for every logical subject. support Support I did, sorry caitanya Caitanya
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Pessimestic Locking doesn't release when application unexpectedly terminates.
seems logical , and hopefully could be implemented in one of the next builds. support Support Build 2.6.7_03
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Modifying something with Explorer -> app JPQL with Enum doesn't work anymore
encountered this I had to remove @Enumerated with Long, and add ids for each Enum in my logic
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Help with JPA2 Criteria and conditional operator grouping
around the 'or'. Hence, my logic conditions is failing. The same EJB running against my eclipselink
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drop a column from table
Support Hi But it physically present and logically it will not display. If a want to drop or delete
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Attempt to refresh a non managed entity object (error 635)
() it with every transaction (in an application with one thread handling all the business logic ) ? dmoshal
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Changing existing objects from Entity to Embedded
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
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Spring Transactions (@Transactional) within ObjectDB
the lookup is also part of same transaction so it should be aware of the persisted object. The logic
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Query Method NullPointerException on List iteration
) ~[na:na] at com.bi.objectDB.core. logic .SupplierInformationService.findCategoryCount
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Query results are not up to date for entities, not primitives
detail all the code of generic functions, but a piece of logic is this: private void root(Class type
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Measurement of the test coverage of enhanced classes
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
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Add Type level permissions to ObjectDB Server
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
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Once served to JSF page via @EJB query bean, many list fields are null (but same query ok after fresh persist in @PostConstruct)
. The logic of the TestQuery and the Page JSF are no different from that of your own JavaEE tutorial
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Problem using "and" for joined entities and indexed fields
; but if you can't use these fields in logical expressions like "and" is a big problem.  
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