org.apache.whirr.state

Class FileClusterStateStore

java.lang.Object

org.apache.whirr.state.ClusterStateStore

org.apache.whirr.state.FileClusterStateStore

public class FileClusterStateStore
extends ClusterStateStore

Stores/Reads cluster state from a local file (located at: "~/.whirr/cluster-name/instances")

Constructor Summary

Constructors

Constructor and Description
FileClusterStateStore(ClusterSpec spec)

Method Summary

Methods

Modifier and Type	Method and Description
void	destroy() Destroys the provided cluster's state in storage.
Cluster	load() Deserializes cluster state from storage.
void	save(Cluster cluster) Saves cluster state to storage.

Methods inherited from class org.apache.whirr.state.ClusterStateStore

serialize, tryLoadOrEmpty, unserialize

Methods inherited from class java.lang.Object

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

Constructor Detail

FileClusterStateStore

public FileClusterStateStore(ClusterSpec spec)

Method Detail

load

public Cluster load()
             throws IOException

Description copied from class: ClusterStateStore

Deserializes cluster state from storage.

Specified by:

load in class ClusterStateStore

Returns:

Throws:

IOException

destroy

public void destroy()
             throws IOException

Description copied from class: ClusterStateStore

Destroys the provided cluster's state in storage.

Specified by:

destroy in class ClusterStateStore

Throws:

IOException

save

public void save(Cluster cluster)
          throws IOException

Description copied from class: ClusterStateStore

Saves cluster state to storage.

Specified by:

save in class ClusterStateStore

Throws:

IOException