Package org.elasticsearch.plugins

Interface IndexStorePlugin

public interface IndexStorePlugin

A plugin that provides alternative directory implementations.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	IndexStorePlugin.DirectoryFactory	An interface that describes how to create a new directory instance per shard.
static interface	IndexStorePlugin.IndexFoldersDeletionListener	IndexStorePlugin.IndexFoldersDeletionListener are invoked before the folders of a shard or an index are deleted from disk.
static interface	IndexStorePlugin.RecoveryStateFactory	An interface that allows to create a new RecoveryState per shard.
static interface	IndexStorePlugin.SnapshotCommitSupplier	An interface that allows plugins to override the IndexCommit of which a snapshot is taken.

Method Summary

Modifier and Type	Method	Description
Map<String,IndexStorePlugin.DirectoryFactory>	getDirectoryFactories()	The IndexStorePlugin.DirectoryFactory mappings for this plugin.
default List<IndexStorePlugin.IndexFoldersDeletionListener>	getIndexFoldersDeletionListeners()	The IndexStorePlugin.IndexFoldersDeletionListener listeners for this plugin.
default Map<String,IndexStorePlugin.RecoveryStateFactory>	getRecoveryStateFactories()	The IndexStorePlugin.RecoveryStateFactory mappings for this plugin.
default Map<String,IndexStorePlugin.SnapshotCommitSupplier>	getSnapshotCommitSuppliers()	The IndexStorePlugin.SnapshotCommitSupplier mappings for this plugin.

Method Details

getDirectoryFactories

Map<String,IndexStorePlugin.DirectoryFactory> getDirectoryFactories()

The IndexStorePlugin.DirectoryFactory mappings for this plugin. When an index is created the store type setting IndexModule.INDEX_STORE_TYPE_SETTING on the index will be examined and either use the default or a built-in type, or looked up among all the directory factories from IndexStorePlugin plugins.

Returns:

a map from store type to an directory factory

getRecoveryStateFactories

default Map<String,IndexStorePlugin.RecoveryStateFactory> getRecoveryStateFactories()

The IndexStorePlugin.RecoveryStateFactory mappings for this plugin. When an index is created the recovery type setting IndexModule.INDEX_RECOVERY_TYPE_SETTING on the index will be examined and either use the default or looked up among all the recovery state factories from IndexStorePlugin plugins.

Returns:

a map from recovery type to an recovery state factory

getIndexFoldersDeletionListeners

default List<IndexStorePlugin.IndexFoldersDeletionListener> getIndexFoldersDeletionListeners()

The IndexStorePlugin.IndexFoldersDeletionListener listeners for this plugin. When the folders of an index or a shard are deleted from disk, these listeners are invoked before the deletion happens in order to allow plugin to clean up any resources if needed.

Returns:

a list of IndexStorePlugin.IndexFoldersDeletionListener listeners

getSnapshotCommitSuppliers

default Map<String,IndexStorePlugin.SnapshotCommitSupplier> getSnapshotCommitSuppliers()

The IndexStorePlugin.SnapshotCommitSupplier mappings for this plugin. When an index is created the store type setting IndexModule.INDEX_STORE_TYPE_SETTING on the index will determine whether the snapshot commit supplier should be overridden and, if so, which override to use.

Returns:

a collection of snapshot commit suppliers, keyed by the value of IndexModule.INDEX_STORE_TYPE_SETTING.