Representation of a union of tag sets. I.e. this is an event selection that combines multiple
Readonly _dataType: E
Type of the Events which may be returned by the contained tags. Note that this does reflect only locally declared type knowledge; historic events delivered by the Actyx system may not match these types, and this is not automatically detected. It is therefore good practice to carefully review changes to the declared type so that they remain backwards compatible.
Add an alternative set we may also match. E.g. tag0.or(tag1.and(tag2)).or(tag1.and(tag3)) will match: Events with tag0; Events with both tag1 and tag2; Events with both tag1 and tag3.
Returns: Where<E | E1>
▸ toString(): string
Convert to an Actyx Event Service query string.