com.couchbase.client.core.service.strategies

Class PartitionSelectionStrategy

java.lang.Object

com.couchbase.client.core.service.strategies.PartitionSelectionStrategy

All Implemented Interfaces:

SelectionStrategy

public class PartitionSelectionStrategy
extends Object
implements SelectionStrategy

Selects the Endpoint based on the information enclosed in the CouchbaseRequest.

This strategy can be used to “pin” certain requests to specific endpoints based on the supplied information. The current implementation uses this technique to tie ID-based BinaryRequests to the same endpoint to enforce at least some amount of ordering guarantees.

Since:

1.0

Author:

Michael Nitschinger

Constructor Summary

Constructors

Constructor and Description
PartitionSelectionStrategy()

Method Summary

Modifier and Type	Method and Description
Endpoint	select(CouchbaseRequest request, Endpoint[] endpoints) Selects an Endpoint for the given CouchbaseRequest.

Methods inherited from class java.lang.Object

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

Constructor Detail

PartitionSelectionStrategy

public PartitionSelectionStrategy()

Method Detail

select

public Endpoint select(CouchbaseRequest request,
                       Endpoint[] endpoints)

Description copied from interface: SelectionStrategy

Selects an Endpoint for the given CouchbaseRequest.

If null is returned, it means that no endpoint could be selected and it is up to the calling party to decide what to do next.

Specified by:

select in interface SelectionStrategy

Parameters:

request - the input request.

endpoints - all the available endpoints.

Returns:

the selected endpoint.