backtype.storm.utils
Class VersionedStore

java.lang.Object
  backtype.storm.utils.VersionedStore

public class VersionedStore
extends Object

Constructor Summary

VersionedStore(String path)

Method Summary

void	cleanup()
void	cleanup(int versionsToKeep)
String	createVersion()
String	createVersion(long version)
void	deleteVersion(long version)
void	failVersion(String path)
List<Long>	getAllVersions() Sorted from most recent to oldest
String	getRoot()
Long	mostRecentVersion()
Long	mostRecentVersion(long maxVersion)
String	mostRecentVersionPath()
String	mostRecentVersionPath(long maxVersion)
void	succeedVersion(String path)
String	versionPath(long version)

Methods inherited from class java.lang.Object

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

Constructor Detail

VersionedStore

public VersionedStore(String path)
               throws IOException

Throws:

IOException

Method Detail

getRoot

public String getRoot()

versionPath

public String versionPath(long version)

mostRecentVersionPath

public String mostRecentVersionPath()
                             throws IOException

Throws:

IOException

mostRecentVersionPath

public String mostRecentVersionPath(long maxVersion)
                             throws IOException

Throws:

IOException

mostRecentVersion

public Long mostRecentVersion()
                       throws IOException

Throws:

IOException

mostRecentVersion

public Long mostRecentVersion(long maxVersion)
                       throws IOException

Throws:

IOException

createVersion

public String createVersion()
                     throws IOException

Throws:

IOException

createVersion

public String createVersion(long version)
                     throws IOException

Throws:

IOException

failVersion

public void failVersion(String path)
                 throws IOException

Throws:

IOException

deleteVersion

public void deleteVersion(long version)
                   throws IOException

Throws:

IOException

succeedVersion

public void succeedVersion(String path)
                    throws IOException

Throws:

IOException

cleanup

public void cleanup()
             throws IOException

Throws:

IOException

cleanup

public void cleanup(int versionsToKeep)
             throws IOException

Throws:

IOException

getAllVersions

public List<Long> getAllVersions()
                          throws IOException

Sorted from most recent to oldest

Throws:

IOException