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Manual
22

Comparison in JPQL and Criteria API

and expressions that include an unknown value are evaluated as unknown, i.e. to NULL. IS [NOT] NULL ... which are provided by JPQL (and SQL): c.president IS NULL c.president IS NOT NULL The expressions ... ) expressions: c.president == null c.president != null Comparable Data Types Comparison is supported
Manual
20

Logical Operators in JPQL and Criteria API

expressions out of simple JPQL boolean expressions. Logical Operators ObjectDB supports 2 sets ... part of its JDO support. Criteria Query Logical Operators Boolean Expressions and Predicates Boolean expressions are represented in criteria queries by Expression and descendant interfaces
JPA Doc
20

as(type)

Method javax.persistence.criteria.Expression Expression as(   Class type ) Perform a typecast upon the expression, returning a new expression object. This method does not cause type conversion ... - intended type of the expression Returns: new expression of the given type Since: JPA 2.0
JPA Doc
20

selectCase(expression)

Method javax.persistence.criteria.CriteriaBuilder SimpleCase selectCase(   Expression expression ) Create a simple case expression. Parameters: expression - to be tested against the case conditions Returns: simple case expression Since: JPA 2.0
JPA Doc
20

in(expression)

Method javax.persistence.criteria.CriteriaBuilder In in(   Expression expression ) Create predicate to test whether given expression is contained in a list of values. Parameters: expression - to be tested against list of values Returns: in predicate Since: JPA 2.0
JPA Doc
20

in(values)

Method javax.persistence.criteria.Expression Predicate in(   Expression> values ) Create a predicate to test whether the expression is a member of the collection. Parameters: values - expression corresponding to collection to be tested against Returns: predicate testing for membership Since: JPA 2.0
JPA Doc
20

in(values)

Method javax.persistence.criteria.Expression Predicate in(   Expression... values ) Create a predicate to test whether the expression is a member of the argument list. Parameters: values - expressions to be tested against Returns: predicate testing for membership Since: JPA 2.0
JPA Doc
20

in(values)

Method javax.persistence.criteria.Expression Predicate in(   Expression values ) Create a predicate to test whether the expression is a member of the collection. Parameters: values - expression corresponding to collection to be tested against Returns: predicate testing for membership Since: JPA 2.0
JPA Doc
20

select(expression)

Method javax.persistence.criteria.Subquery Subquery select(   Expression expression ) Specify the item that is to be returned as the subquery result. Replaces the previously specified selection, if any. Parameters: expression - expression specifying the item that is to be returned as
JPA Doc
20

isNotNull()

Method javax.persistence.criteria.Expression Predicate isNotNull() Create a predicate to test whether the expression is not null. Returns: predicate testing whether the expression is not null Since: JPA 2.0