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About ENABLE_SELECTIVE

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Forum
6

Performance in SELECT statement

has around 30.000 rows) Example query looks like : String strSelect = "SELECT e FROM TestEntity
Manual
6

JPA Persistable Types

to enable switching to the supported collection type when the entity is retrieved. Actually, JPA requires ... the original classes and enable transparent activation and transparent persistence. For example ... annotation enables choosing the internal representation: @Entity public class Style { Color
Manual
6

Retrieving JPA Entity Objects

with data that is retrieved from the database (or from the L2 cache - if enabled). The new entity object ... @OneToMany or @ManyToMany annotations (currently ObjectDB does not distinguish between the two) enables ... queries. The official query language of JPA is JPQL (Java Persistence Query Language). It enables
Forum
6

Class fields selection to store

Class fields selection to store
Forum
6

Selective merge/cascade of detatched entity

Selective merge/cascade of detatched entity
Tutorial
5

Getting Started with JPA - Eclipse Project

: Select File > Import... > Maven > Existing Maven Projects and click Next. Select the points-console directory as Root Directory and press ENTER. Select the project and click Finish. Run the project in Eclipse: Right click the project node and select Run As > Java Application. Select Main - point and click OK.
Manual
5

Paths and Types in JPQL and Criteria API

identification variables and SELECT result variables. Parameters - when instances of these classes are assigned ... through a NULL value The following query retrieves country names with their capital city names: SELECT ... of all the entity objects in the database, excluding Country entity objects: SELECT COUNT(e) FROM
Tutorial
5

Step 1: Install BIRT and ObjectDB Driver

 Eclipse IDE for Java EE Developers environment: Open the [Install] dialog box by selecting Help ... Neon, Oxygen) and press ENTER. Click the Select All button to select all the BIRT features. Complete ... To install the ObjectDB data source driver for BIRT: Open the [Install] dialog box by selecting Help
JPA Doc
5

javax.persistence.Cacheable

javax.persistence Annotation Cacheable Target: Classes Specifies whether an entity should be cached if caching is enabled when the value of the persistence.xml caching element is ENABLE_SELECTIVE or DISABLE_SELECTIVE. The value of the Cacheable annotation is inherited by subclasses
Manual
5

DELETE Queries in JPA/JPQL

an alternative way for deleting entity objects. Unlike SELECT queries, which are used to retrieve data from ... returns the number of objects that have been deleted by the query. Selective Deletion The structure of DELETE queries is very simple relative to the structure of SELECT queries. DELETE queries