org.neo4j.upgrade.lucene

Class LuceneLegacyIndexUpgrader

java.lang.Object

org.neo4j.upgrade.lucene.LuceneLegacyIndexUpgrader

public class LuceneLegacyIndexUpgrader
extends Object

Lucene index upgrader that will try to migrate all indexes in specified index root directory.

Currently index migration has 2 steps:

1. Migration to format supported by Lucene 4
2. Migration to format supported by Lucene 5

Migration performed by using native lucene's IndexUpgraders from corresponding versions. For details see Lucenes migration guide.

In case if one of the indexes can not be migrated migration is terminated and corresponding exception is thrown.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	LuceneLegacyIndexUpgrader.Monitor

Field Summary

Fields

Modifier and Type	Field and Description
static LuceneLegacyIndexUpgrader.Monitor	NO_MONITOR

Constructor Summary

Constructors

Constructor and Description
LuceneLegacyIndexUpgrader(Path indexRootPath, LuceneLegacyIndexUpgrader.Monitor monitor)

Method Summary

Modifier and Type	Method and Description
void	upgradeIndexes() Perform index migrations

Methods inherited from class java.lang.Object

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

Field Detail

NO_MONITOR

public static final LuceneLegacyIndexUpgrader.Monitor NO_MONITOR

Constructor Detail

LuceneLegacyIndexUpgrader

public LuceneLegacyIndexUpgrader(Path indexRootPath,
                                 LuceneLegacyIndexUpgrader.Monitor monitor)

Method Detail

upgradeIndexes

public void upgradeIndexes()
                    throws LegacyIndexMigrationException

Perform index migrations

Throws:

LegacyIndexMigrationException - in case of exception during index migration