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: Expression<String> empty = cb.

(IS EMPTY, MEMBER OF, SIZE).

is empty ("") logging to file is disabled. Every day a new log file

JPA 2 JavaDoc Reference Documentation - Used to construct criteria queries, compound selections, expressions, predicates, orderings.

the attributes declared by the managed type. Returns empty set if the managed type has no declared ... attributes) declared by the managed type. Returns empty set if the managed type has no declared multi ... declared by the managed type. Returns empty set if the managed type has no declared single-valued

empty set if the managed type has no declared attributes. empty set if the managed type has no declared multi-valued attributes. Return the single-valued attributes declared by the managed type. Returns empty set

the methods that are irrelevant empty. For example: package test

by an empty newQuery() form: Query newQuery();

a new, empty database at that location. This behavior is an ObjectDB extension. JDO does not define

.String field, empty collection, 0 size array, and so on). primary-key