com.groupdocs.search

Class IndexUpdater

java.lang.Object

com.groupdocs.search.IndexUpdater

public class IndexUpdater
extends Object

Represents an index updater. This class performs reindexing documents in an index of an old version.

Learn more

• Update index

The example demonstrates a typical usage of the class.

 
 String sourceIndexFolder = "c:\\MyOldIndex\\";
 String targetIndexFolder = "c:\\MyNewIndex\\";
 IndexUpdater updater = new IndexUpdater();
 if (updater.canUpdateVersion(sourceIndexFolder)) {
     int result = updater.updateVersion(sourceIndexFolder, targetIndexFolder);
 }
 
 

Constructor Summary

Constructors

Constructor and Description
IndexUpdater() Initializes a new instance of the IndexUpdater class.

Method Summary

Modifier and Type	Method and Description
boolean	canUpdateVersion(String indexPath) Checks whether an index in the specified directory can be updated to the latest version.
boolean	isLatestVersion(String indexPath) Checks whether the specified directory contains an index of the latest version.
VersionUpdateResult	updateVersion(String indexPath, String newIndexPath) Performs reindexing documents in an index of an old version.

Methods inherited from class java.lang.Object

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

Constructor Detail

IndexUpdater

public IndexUpdater()

Initializes a new instance of the IndexUpdater class.

Method Detail

canUpdateVersion

public final boolean canUpdateVersion(String indexPath)

Checks whether an index in the specified directory can be updated to the latest version.

Parameters:

indexPath - The index directory path.

Returns:

true if an index in the specified directory can be updated to the latest version; otherwise false.

isLatestVersion

public final boolean isLatestVersion(String indexPath)

Checks whether the specified directory contains an index of the latest version.

Parameters:

indexPath - The index directory path.

Returns:

true if the specified directory contains an index of the latest version; otherwise false.

updateVersion

public final VersionUpdateResult updateVersion(String indexPath,
                                               String newIndexPath)

Performs reindexing documents in an index of an old version. The updated index will be placed in the newIndexPath directory. The index in the indexPath directory will not be changed.

Parameters:

indexPath - The index directory path.

newIndexPath - The directory for the updated index.

Returns:

The result of the index version update operation.