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JPA Doc
2

isId()

Method javax.persistence.metamodel.SingularAttribute boolean isId() Is the attribute an id attribute. This method will return true if the attribute is an attribute that corresponds to a simple id, an embedded id, or an attribute of an id class. Returns: boolean indicating whether the attribute is an id Since: JPA 2.0
JPA Doc
2

isLoaded(entity)

of state. Parameters: entity - entity instance whose load state is to be determined Returns: false if the entity has not been loaded, else true Since: JPA 2.0
JPA Doc
2

isLoaded(entity)

state is to be determined Returns: false if the entity has not been loaded, else true Since: JPA 2.0
JPA Doc
2

isLoaded(entity, attributeName)

if the attribute state has not been loaded, else true Since: JPA 2.0
JPA Doc
2

isLoaded(entity, attributeName)

if entity's state has not been loaded or if the attribute state has not been loaded, else true Since: JPA 2.0
JDO Doc
2

isLoaded(pc, field)

Method javax.jdo.spi.StateManager boolean isLoaded(   PersistenceCapable pc,   int field ) Return true if the field is cached in the calling instance. Parameters: pc - the calling PersistenceCapable instance field - the field number Returns: whether the field is cached in the calling instance Since: JDO 1.0
JPA Doc
2

isNotMember(elem, collection)

Method javax.persistence.criteria.CriteriaBuilder Predicate isNotMember(   Expression elem,   Expression collection ) Create a predicate that tests whether an element is not a member of a collection. If the collection is empty, the predicate will be true. Parameters: elem - element expression
JPA Doc
2

isNotMember(elem, collection)

Method javax.persistence.criteria.CriteriaBuilder Predicate isNotMember(   E elem,   Expression collection ) Create a predicate that tests whether an element is not a member of a collection. If the collection is empty, the predicate will be true. Parameters: elem - element collection - expression Returns: is-not-member predicate Since: JPA 2.0
JPA Doc
2

isNotMember(elem, collection)

Method javax.persistence.criteria.CriteriaBuilder Predicate isNotMember(   Expression elem,   Expression collection ) Create a predicate that tests whether an element is not a member of a collection. If the collection is empty, the predicate will be true. Parameters: elem - element expression
JPA Doc
2

isOpen()

Method javax.persistence.EntityManager boolean isOpen() Determine whether the entity manager is open. Returns: true until the entity manager has been closed Since: JPA 1.0