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SELECT clause (JPQL / Criteria API)

The Selection interface is also a super interface of  CompoundSelection , which represents multi ... ). The CriteriaBuilder interface provides three factory methods for building  CompoundSelection instances ... "), c. get ("capital"). get ("name"))); The array method builds a CompoundSelection instance

javax.persistence.criteria.CompoundSelection

JPA Interface CompoundSelection Type Parameters: - the type of the selection item Super Interfaces: Selection , TupleElement The CompoundSelection interface defines a compound selection item (tuple, array, or result of constructor). Since: JPA 2.0 Public Methods Selection alias (String name

Criteria Query Selection and Results

selection expressions can be represented by  CompoundSelection , which is itself a subinterface

javax.persistence.criteria.CriteriaBuilder

CompoundSelection array (Selection ... selections) Create an array-valued selection item. Parameters ... conjuncts is true. Return: and predicate Since: JPA 2.0 CompoundSelection construct (Class   ... to be trimmed x - expression for string to trim Return: trim expression Since: JPA 2.0 CompoundSelection

CriteriaBuilder.array(selections) - JPA Method

JPA Method in javax.persistence.criteria.CriteriaBuilder CompoundSelection array (   Selection ... selections ) Create an array-valued selection item. Parameters: selections - selection items Return: array-valued compound selection Throws: IllegalArgumentException - if an argument is a tuple- or array-valued selection item Since: JPA 2.0

CriteriaBuilder.tuple(selections) - JPA Method

JPA Method in javax.persistence.criteria.CriteriaBuilder CompoundSelection tuple (   Selection ... selections ) Create a tuple-valued selection item. Parameters: selections - selection items Return: tuple-valued compound selection Throws: IllegalArgumentException - if an argument is a tuple- or array-valued selection item Since: JPA 2.0

CriteriaBuilder.construct(resultClass,selections) - JPA Method

JPA Method in javax.persistence.criteria.CriteriaBuilder CompoundSelection construct (   Class  resultClass,    Selection ... selections ) Create a selection item corresponding to a constructor. This method is used to specify a constructor that will be applied