About types

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JPA Doc
8

javax.persistence.metamodel.SingularAttribute

>, Bindable Instances of the type SingularAttribute represents persistent single-valued properties or fields. Since: JPA 2.0 Class getBindableJavaType() Return the Java type of the represented object. Return the Java type of the represented object. If the bindable type of the object is PLURAL
JPA Doc
8

javax.persistence.criteria.Subquery

Returns: selection item Since: JPA 2.0 Expression as(Class type) Perform a typecast ... a new expression object. This method does not cause type conversion: the runtime type is not changed. Warning: may result in a runtime failure. Parameters: type - intended type of the expression Returns
JDO Doc
8

javax.jdo.Query

There are two namespaces in queries. Type names have their own namespace that is separate from the namespace for fields, variables and parameters. The method setClass introduces the name of the candidate class in the type namespace. The method declareImports introduces the names of the imported class or interface types
JDO Doc
7

JDO Reference (JavaDoc) [2018-08-18]

This reference contains the API documentation (similar to JavaDoc) of JDO 2.2. The content is derived from the original JDO documentation with some additions and notes. The most basic JDO types are: All the other JDO types are organized into the following sections:
Manual
7

GROUP BY and HAVING clauses

 interface provides methods for building aggregate expressions: count, countDistinct - return a long type ... representing the sum of values. avg - returns a double type expression representing the average
JPA Doc
7

JPA Reference (JavaDoc) [2018-08-18]

This reference contains the API documentation (similar to JavaDoc) of the Java Persistence API (JPA) 2.0. The content is derived from the original JPA documentation (in the EclipseLink JPA 2 RI) with some additions and notes. The four most basic JPA types are: All the other JPA types are organized
JDO Doc
7

JDO Predefined ID Classes

but should not be used as the type of a primary key field in a persistence capable class. For example, to use a String primary key define a primary key field of type String: @PersistenceCapable public
Manual
7

JPA Query Expressions (JPQL / Criteria)

, navigation and types (get, type). Arithmetic expressions (sum, diff, prod, quot, mod, abs, neg
Tutorial
7

Step 5: Add a JSP Page

"> Name: type="text" name="name" /> type="submit" value="Add
Manual
7

JPA / JDO Class Enhancer

types have been enhanced: test.MyEntity1 test.MyEntity2 test.MyEmbeddable 2 NON persistable types have been enhanced: Main test.Manager You can also specify names of classes