org.springframework.data.mongodb.core

Interface ReactiveChangeStreamOperation

All Known Subinterfaces:

ReactiveFluentMongoOperations, ReactiveMongoOperations

All Known Implementing Classes:

ReactiveMongoTemplate

public interface ReactiveChangeStreamOperation

ReactiveChangeStreamOperation allows creation and execution of reactive MongoDB Change Stream operations in a fluent API style.
The starting domainType is used for mapping a potentially given TypedAggregation used for filtering. By default, the originating domainType is also used for mapping back the result from the Document. However, it is possible to define an different returnType via as.
The collection to operate on is optional in which case call collection with the actual database are watched, use watchCollection to define a fixed collection.

     
         changeStream(Jedi.class)
             .watchCollection("star-wars")
             .filter(where("operationType").is("insert"))
             .resumeAt(Instant.now())
             .listen();
     
 

Since:

2.2

Author:

Christoph Strobl

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	ReactiveChangeStreamOperation.ChangeStreamWithCollection<T> Collection override (optional).
static interface	ReactiveChangeStreamOperation.ChangeStreamWithFilterAndProjection<T> Provide a filter for limiting results (optional).
static interface	ReactiveChangeStreamOperation.ChangeStreamWithOptions<T> Provide some options.
static interface	ReactiveChangeStreamOperation.ReactiveChangeStream<T> ReactiveChangeStreamOperation.ReactiveChangeStream provides methods for constructing change stream operations in a fluent way.
static interface	ReactiveChangeStreamOperation.ResumingChangeStream<T> Resume a change stream.
static interface	ReactiveChangeStreamOperation.TerminatingChangeStream<T> Compose change stream execution by calling one of the terminating methods.

Method Summary

Modifier and Type	Method and Description
<T> ReactiveChangeStreamOperation.ReactiveChangeStream<T>	changeStream(Class<T> domainType) Start creating a change stream operation for the given domainType watching all collections within the database.

Method Detail

changeStream

<T> ReactiveChangeStreamOperation.ReactiveChangeStream<T> changeStream(Class<T> domainType)

Start creating a change stream operation for the given domainType watching all collections within the database.
Consider limiting events be defining a collection and/or filter.

Parameters:

domainType - must not be null. Use Document to obtain raw elements.

Returns:

new instance of ReactiveChangeStreamOperation.ReactiveChangeStream. Never null.

Throws:

IllegalArgumentException - if domainType is null.