About types

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Manual
13

Comparison in JPQL and Criteria API

) expressions: c.president == null c.president != null Comparable Data Types Comparison is supported for values of the following data types: Values of numeric types, including primitive types (byte, short, char, int, long, float, double), wrapper types (Byte, Short, Character, Integer, Long, Float, Double
JPA Doc
12

javax.persistence.criteria.CollectionJoin

> The CollectionJoin interface is the type of the result of joining to a collection ... . Parameters: name - alias Returns: selection item Since: JPA 2.0 Expression as(Class type) Perform ... upon the expression, returning a new expression object. This method does not cause type conversion: the runtime type
JPA Doc
12

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
12

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
12

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
12

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
12

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
12

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
JPA Doc
12

javax.persistence.criteria.Join

, PluralJoin, SetJoin A join to an entity, embeddable, or basic type. Since: JPA 2.0 Learn how to use ... : 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
JPA Doc
12

javax.persistence.criteria.PluralJoin

to all collection types. It is not intended to be used directly in query construction. Since: JPA 2.0 ... . Parameters: name - alias Returns: selection item Since: JPA 2.0 Expression as(Class type ... upon the expression, returning a new expression object. This method does not cause type conversion