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About Criteria API

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Manual
153

Literals in JPQL and Criteria Queries

specifying another name explicitly in the @Entity's name annotation element. Criteria Query Literals
FAQ
88

Which API should I use - JPA or JDO?

You can use ObjectDB with either the Java Persistence API (JPA) or the Java Data Objects (JDO) API ... API, and if necessary, switch to JDO as a secondary API for special additional features that are supported only by JDO. Selecting the more popular API leads to more portable application and extends
JPA Doc
85

JPA Queries

. "SELECT c FROM Country"). Criteria Query API Building dynamic queries with structure that is known ... concatenating JPQL strings into a valid complete JPQL query. JPA 2 introduced the JPA Criteria Query API, as ... instance. Building a dynamic query using the criteria API is managed by the CriteriaQuery interface
FAQ
82

What is the Java Persistence API (JPA)?

The Java Persistence API (JPA) is a standard API for accessing databases from within Java applications. The main advantage of JPA over JDBC (the older Java API for interacting with databases ... Persistence API (JPA). By interacting with ObjectDB using standard JPA you can keep your application
Manual
81

JPA Metamodel API

The JPA Metamodel API provides the ability to examine the persistent object model and retrieve ... Metamodel API is Metamodel. It can be obtained either by the EntityManagerFactory's getMetamodel method or ... . Type Interface Hierarchy Types are represented in the Metamodel API by descendant interfaces
JPA Doc
67

JPA Metamodel API Attributes

The following interfaces and enum types represent attributes (persistent fields and properties) in the JPA Metamodel API: See the Metamodel Attribute Interface Hierarchy section for more details and examples.
JPA Doc
67

JPA Metamodel API Types

The following interfaces and enum represent types in the JPA Metamodel API:  See the Metamodel Type Interface Hierarchy section for more details and examples.
FAQ
63

ObjectDB APIs

All about ObjectDB APIs in Java/JPA database - explanations, examples, references, links and related information.
Manual
62

GROUP BY and HAVING clauses

HAVING COUNT(c) > 1 can be built using the criteria query API as follows: CriteriaQuery ... become inaccessible. GROUP BY and HAVING in Criteria Queries The CriteriaQuery interface provides methods
JPA Doc
43

javax.persistence.criteria.CriteriaQuery

how to define queries using the criteria API in Chapter 4 of the ObjectDB/JPA manual.   AbstractQuery ... javax.persistence.criteria Interface CriteriaQuery Superinterfaces: AbstractQuerycriteria query object created as well as the argument to the multiselect