MongoDB request DSL • opensavvy.ktmongo.dsl.query • FilterQuery • isUndefined

isUndefined

open fun Field<T, *>.isUndefined()

Deprecated

Selects documents for which the field is undefined.

Example

class User(
    val name: String,
    val age: Int?,
)

collection.find {
    User::age.isUndefined()
}

External resources

• Official documentation

See also

• FilterQuery.isNotUndefined Opposite.

open fun KProperty1<T, *>.isUndefined()

Deprecated

Selects documents for which the field is undefined.

Example

class User(
    val name: String,
    val age: Int?,
)

collection.find {
    User::age.isUndefined()
}

External resources

• Official documentation

See also

• FilterQuery.isNotUndefined Opposite.