About types

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JPA Doc
13

javax.persistence.criteria.ListJoin

interface is the type of the result of joining to a collection over an association or element ... : selection item Since: JPA 2.0 Expression as(Class type) Perform a typecast ... expression object. This method does not cause type conversion: the runtime type is not changed. Warning
JPA Doc
13

javax.persistence.criteria.MapJoin

> The MapJoin interface is the type of the result of joining to a collection over an association or element ... : selection item Since: JPA 2.0 Expression as(Class type) Perform a typecast ... expression object. This method does not cause type conversion: the runtime type is not changed. Warning
JPA Doc
13

javax.persistence.criteria.SetJoin

interface is the type of the result of joining to a collection over an association or element ... : selection item Since: JPA 2.0 Expression as(Class type) Perform a typecast upon the expression ... expression object. This method does not cause type conversion: the runtime type is not changed. Warning
Manual
13

JPA Primary Key

the database is uniquely identified (and can be retrieved from the database) by the combination of its type ... of other persistable types are always stored as part of their containing entity objects and do not ... : } A primary key field that is set by the application can have one of the following types: Primitive types
Manual
13

Query Parameters in JPA [2011-04-01]

are defined implicitly by appearing in the query string. The parameter type is inferred by the context. In the above example, a comparison of :name to a field whose type is String indicates that the type ... (as other query elements) are represented by objects (of type ParameterExpression or its super
Manual
13

Query Parameters in JPA

are defined implicitly by appearing in the query string. The parameter type is inferred by the context. In the above example, a comparison of :name to a field whose type is String indicates that the type ... (as other query elements) are represented by objects (of type ParameterExpression or its super
Forum
13

c.o.jpa.type.EntityTypeImpl.getIdType() returns null

fails     EntityType type = metamodel.entity(domainClass);     if (type == null ... the given Metamodel!");     }     this.attribute = type.getId(type.getIdType().getJavaType()); in the debugger is i can see this member m_idType is null type EntityTypeImpl  (id=57) m_attrMap
Forum
13

Enhancer failure: Failed to process class file of type

Stack trace below:   [ObjectDB 2.7.1_02] Failed to process class file of type 'app.model.ClientSession' (error 422) com.objectdb.o.UserException: Failed to process class file of type 'app.model ... .java:33) Caused by: com.objectdb.o.UserException: Failed to generate dynamic type jdk.internal
Forum
13

Inconsistent return types from JDO query

I'm running a JDO query which returns the sum of an int field.  The return type of the Object ... .class) has no effect. The type of a sum expression depends on the type of the field on which it works ... types. I am attaching sample code which reproduces the problem. Thank you for this report
Issue
13

Issue with TYPE expression in Criteria API

.virtual.model.MyCustomer $1 WHERE TYPE($1)=class com.test.model.Customer Exception in thread "main ... persistable type java.lang.Class (error 303) at com.objectdb.jpa.JpaQuery.getResultList(JpaQuery.java ... by: com.objectdb.o.UserException: Attempt to store an instance of a non persistable type java.lang