com.couchbase.client.core.dcp

Class BucketStreamAggregator

java.lang.Object

com.couchbase.client.core.dcp.BucketStreamAggregator

@InterfaceStability.Experimental
 @InterfaceAudience.Public
public class BucketStreamAggregator
extends Object

Provides a higher level abstraction over a DCP stream.

The bucket is expected to be opened already when the feed() method is called.

Since:

1.2.0

Author:

Michael Nitschinger

Field Summary

Fields

Modifier and Type	Field and Description
static String	DEFAULT_CONNECTION_NAME

Constructor Summary

Constructors

Constructor and Description
BucketStreamAggregator(ClusterFacade core, String bucket)
BucketStreamAggregator(String name, ClusterFacade core, String bucket) Create BucketStreamAggregator instance

Method Summary

Modifier and Type	Method and Description
Observable<DCPRequest>	feed() Opens a DCP stream with default name and returns the feed of changes from beginning.
Observable<DCPRequest>	feed(BucketStreamAggregatorState aggregatorState) Opens a DCP stream and returns the feed of changes.
Observable<BucketStreamAggregatorState>	getCurrentState() Retrieve current state of the partitions.
String	name()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DEFAULT_CONNECTION_NAME

public static String DEFAULT_CONNECTION_NAME

Constructor Detail

BucketStreamAggregator

public BucketStreamAggregator(ClusterFacade core,
                              String bucket)

BucketStreamAggregator

public BucketStreamAggregator(String name,
                              ClusterFacade core,
                              String bucket)

Create BucketStreamAggregator instance

Parameters:

name - name for DCP connection

core -

bucket - bucket name

Method Detail

name

public String name()

feed

public Observable<DCPRequest> feed()

Opens a DCP stream with default name and returns the feed of changes from beginning.

Returns:

the feed with DCPRequests.

feed

public Observable<DCPRequest> feed(BucketStreamAggregatorState aggregatorState)

Opens a DCP stream and returns the feed of changes.

Parameters:

aggregatorState - state object

Returns:

the feed with DCPRequests.

getCurrentState

public Observable<BucketStreamAggregatorState> getCurrentState()

Retrieve current state of the partitions.

It has all sequence and snapshot numbers set to the last known sequence number.

Returns:

state object