com.couchbase.client.java.cluster

Class DefaultClusterInfo

java.lang.Object

com.couchbase.client.java.cluster.DefaultClusterInfo

All Implemented Interfaces:

ClusterInfo

public class DefaultClusterInfo
extends Object
implements ClusterInfo

Default implementation for a ClusterInfo.

Since:

2.0

Author:

Michael Nitschinger

Constructor Summary

Constructors

Constructor and Description
DefaultClusterInfo(JsonObject raw)

Method Summary

Modifier and Type	Method and Description
boolean	checkAvailable(CouchbaseFeature feature) Checks the availability of a specified CouchbaseFeature on the associated Cluster.
List<Version>	getAllVersions() Returns the list of Version obtained from the cluster from which this ClusterInfo was obtained.
Version	getMinVersion() Returns the smallest node version (thus oldest version) in the cluster from which this ClusterInfo was taken.
JsonObject	raw() Provides raw access to the full JSON information from the server.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultClusterInfo

public DefaultClusterInfo(JsonObject raw)

Method Detail

raw

public JsonObject raw()

Description copied from interface: ClusterInfo

Provides raw access to the full JSON information from the server.

Specified by:

raw in interface ClusterInfo

Returns:

the raw JSON cluster info.

checkAvailable

public boolean checkAvailable(CouchbaseFeature feature)

Description copied from interface: ClusterInfo

Checks the availability of a specified CouchbaseFeature on the associated Cluster.

Note that this relies on ClusterInfo.getMinVersion(). If said method returns Version.NO_VERSION then the feature will be deemed unavailable (this method will return false).

Specified by:

checkAvailable in interface ClusterInfo

Parameters:

feature - the feature to check for.

Returns:

true if minimum node server version is compatible with the feature, false otherwise.

See Also:

ClusterInfo.getMinVersion()

getMinVersion

public Version getMinVersion()

Description copied from interface: ClusterInfo

Returns the smallest node version (thus oldest version) in the cluster from which this ClusterInfo was taken. If list of version cannot be obtained then this returns Version.NO_VERSION.

Specified by:

getMinVersion in interface ClusterInfo

Returns:

the smallest (oldest) server version in the cluster.

getAllVersions

public List<Version> getAllVersions()

Description copied from interface: ClusterInfo

Returns the list of Version obtained from the cluster from which this ClusterInfo was obtained. In case the versions cannot be obtained, an empty list is returned.

Specified by:

getAllVersions in interface ClusterInfo

Returns:

the list of nodes versions, or an empty list in case of errors.