Occur

Use this operator for clauses that must appear in the matching documents.

Like .MUST except that these clauses do not participate in scoring.

Use this operator for clauses that should appear in the matching documents. For a BooleanQuery with no MUST clauses one or more SHOULD clauses must match a document for the BooleanQuery to match.

Use this operator for clauses that must not appear in the matching documents. Note that it is not possible to search for queries that only consist of a MUST_NOT clause. These clauses do not contribute to the score of documents.

Returns a representation of an immutable list of all enum entries, in the order they're declared.

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Returns an array containing the constants of this enum type, in the order they're declared.