All Known Implementing Classes:

CSIndexExtensionRequestHandler
```
public interface CSSearchableIndexDelegate
```
An application that is long running should provide a CSSearchableIndexDelegate conforming object to handle communication from the index. Alternatively, an app can provide an extension whose request handler conforms to this protocol and the extension will be called if the app isn't running. API-Since: 9.0

Nested Class Summary

Nested Classes
Modifier and Type	Interface	Description
`static interface`	`CSSearchableIndexDelegate.Block_searchableIndexReindexAllSearchableItemsWithAcknowledgementHandler`
`static interface`	`CSSearchableIndexDelegate.Block_searchableIndexReindexSearchableItemsWithIdentifiersAcknowledgementHandler`

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`default @Nullable NSData`	`dataForSearchableIndexItemIdentifierTypeIdentifierError(@NotNull CSSearchableIndex searchableIndex, @NotNull java.lang.String itemIdentifier, @NotNull java.lang.String typeIdentifier, @Nullable org.moe.natj.general.ptr.Ptr<NSError> outError)`	The developer may provided a NSData representation if type was specified in providerDataTypeIdentifiers property.
`default @Nullable NSURL`	`fileURLForSearchableIndexItemIdentifierTypeIdentifierInPlaceError(@NotNull CSSearchableIndex searchableIndex, @NotNull java.lang.String itemIdentifier, @NotNull java.lang.String typeIdentifier, boolean inPlace, @Nullable org.moe.natj.general.ptr.Ptr<NSError> outError)`	The developer may provided a NSURL to file representation representation if type was specified from providerDataTypeIdentifiers or providerInPlaceFileTypeIdentifiers property.
`default void`	`searchableIndexDidFinishThrottle(@NotNull CSSearchableIndex searchableIndex)`
`default void`	`searchableIndexDidThrottle(@NotNull CSSearchableIndex searchableIndex)`	When on battery power, it is possible for indexing to slowed down to prevent battery drain.
`void`	`searchableIndexReindexAllSearchableItemsWithAcknowledgementHandler(@NotNull CSSearchableIndex searchableIndex, @NotNull CSSearchableIndexDelegate.Block_searchableIndexReindexAllSearchableItemsWithAcknowledgementHandler acknowledgementHandler)`	The index requests that the delegate should reindex all of its searchable data and clear any local state that it might have persisted because the index has been lost.
`void`	`searchableIndexReindexSearchableItemsWithIdentifiersAcknowledgementHandler(@NotNull CSSearchableIndex searchableIndex, @NotNull NSArray<java.lang.String> identifiers, @NotNull CSSearchableIndexDelegate.Block_searchableIndexReindexSearchableItemsWithIdentifiersAcknowledgementHandler acknowledgementHandler)`	The index requests that the delegate should reindex the searchable data with the provided identifiers.

Method Detail

searchableIndexReindexAllSearchableItemsWithAcknowledgementHandler
```
void searchableIndexReindexAllSearchableItemsWithAcknowledgementHandler(@NotNull
                                                                        @NotNull CSSearchableIndex searchableIndex,
                                                                        @NotNull
                                                                        @NotNull CSSearchableIndexDelegate.Block_searchableIndexReindexAllSearchableItemsWithAcknowledgementHandler acknowledgementHandler)
```
The index requests that the delegate should reindex all of its searchable data and clear any local state that it might have persisted because the index has been lost. The app or extension should call indexSearchableItems on the passed in CSSearchableIndex. The app or extension must call the acknowledgement handler once any client state information has been persisted, that way, in case of a crash, the indexer can call this again. If the app passes clientState information in a batch, the acknowledgement can be called right away. The passed in index shouldn't be used in an extension if a custom protection class is needed.

searchableIndexReindexSearchableItemsWithIdentifiersAcknowledgementHandler

void searchableIndexReindexSearchableItemsWithIdentifiersAcknowledgementHandler(@NotNull
                                                                                @NotNull CSSearchableIndex searchableIndex,
                                                                                @NotNull
                                                                                @NotNull NSArray<java.lang.String> identifiers,
                                                                                @NotNull
                                                                                @NotNull CSSearchableIndexDelegate.Block_searchableIndexReindexSearchableItemsWithIdentifiersAcknowledgementHandler acknowledgementHandler)

The index requests that the delegate should reindex the searchable data with the provided identifiers. The app or extension should call indexSearchableItems:completionHandler on the passed in index CSSearchableIndex to update the items' states. The app or extension must call the acknowledgement handler once any client state information has been persisted, that way, in case of a crash, the indexer can call this again. If the app passes clientState information in a batch, the acknowledgement can be called right away. The passed in index shouldn't be used in an extension if a custom protection class is needed.

searchableIndexDidFinishThrottle

default void searchableIndexDidFinishThrottle(@NotNull
                                              @NotNull CSSearchableIndex searchableIndex)

searchableIndexDidThrottle
```
default void searchableIndexDidThrottle(@NotNull
                                        @NotNull CSSearchableIndex searchableIndex)
```
When on battery power, it is possible for indexing to slowed down to prevent battery drain. The developer may want to optionally implement these methods to receive notice that indexing is being throttled and react accordingly (e.g. by priortizing indexing of more important content).

dataForSearchableIndexItemIdentifierTypeIdentifierError

@Nullable
default @Nullable NSData dataForSearchableIndexItemIdentifierTypeIdentifierError(@NotNull
                                                                                 @NotNull CSSearchableIndex searchableIndex,
                                                                                 @NotNull
                                                                                 @NotNull java.lang.String itemIdentifier,
                                                                                 @NotNull
                                                                                 @NotNull java.lang.String typeIdentifier,
                                                                                 @Nullable
                                                                                 @Nullable org.moe.natj.general.ptr.Ptr<NSError> outError)

The developer may provided a NSData representation if type was specified in providerDataTypeIdentifiers property. API-Since: 11.0

fileURLForSearchableIndexItemIdentifierTypeIdentifierInPlaceError

@Nullable
default @Nullable NSURL fileURLForSearchableIndexItemIdentifierTypeIdentifierInPlaceError(@NotNull
                                                                                          @NotNull CSSearchableIndex searchableIndex,
                                                                                          @NotNull
                                                                                          @NotNull java.lang.String itemIdentifier,
                                                                                          @NotNull
                                                                                          @NotNull java.lang.String typeIdentifier,
                                                                                          boolean inPlace,
                                                                                          @Nullable
                                                                                          @Nullable org.moe.natj.general.ptr.Ptr<NSError> outError)

The developer may provided a NSURL to file representation representation if type was specified from providerDataTypeIdentifiers or providerInPlaceFileTypeIdentifiers property. API-Since: 11.0

Interface CSSearchableIndexDelegate