MongoDB request DSL • opensavvy.ktmongo.dsl.path • selectFirst

selectFirst

inline fun <T> ERROR CLASS: Symbol not found for Bson.selectFirst(field: Field<*, T>): T

Finds the first value that matches field in a given Bson.

To learn more about the syntax, see BsonPath.

Example

val document: Bson = …

document.selectFirst(User::profile / Profile::name)

will return the value of the field profile.name.

See also

• BsonPath Learn more about BSON paths.

• select Select multiple values with a BSON path.

• at Select a single value using infix notation.

Throws

NoSuchElementException

If no element is found matching the path.