org.springframework.data.mongodb.core

Interface ReactiveFindOperation.TerminatingFind<T>

All Known Subinterfaces:

ReactiveFindOperation.FindWithCollection<T>, ReactiveFindOperation.FindWithProjection<T>, ReactiveFindOperation.FindWithQuery<T>, ReactiveFindOperation.ReactiveFind<T>

Enclosing interface:

ReactiveFindOperation

public static interface ReactiveFindOperation.TerminatingFind<T>

Compose find execution by calling one of the terminating methods.

Method Summary

Modifier and Type	Method and Description
reactor.core.publisher.Flux<T>	all() Get all matching elements.
reactor.core.publisher.Mono<Long>	count() Get the number of matching elements.
reactor.core.publisher.Mono<Boolean>	exists() Check for the presence of matching elements.
reactor.core.publisher.Mono<T>	first() Get the first or no result.
reactor.core.publisher.Mono<T>	one() Get exactly zero or one result.

Method Detail

one

reactor.core.publisher.Mono<T> one()

Get exactly zero or one result.

Returns:

Mono.empty() if no match found. Never null.

Throws:

IncorrectResultSizeDataAccessException - if more than one match found.

first

reactor.core.publisher.Mono<T> first()

Get the first or no result.

Returns:

Mono.empty() if no match found. Never null.

all

reactor.core.publisher.Flux<T> all()

Get all matching elements.

Returns:

never null.

count

reactor.core.publisher.Mono<Long> count()

Get the number of matching elements.

Returns:

Mono emitting total number of matching elements. Never null.

exists

reactor.core.publisher.Mono<Boolean> exists()

Check for the presence of matching elements.

Returns:

Mono emitting true if at least one matching element exists. Never null.