Migrator.OnDowngrade(Int32, Int32, GenericDocument) Method

Reference

Definition

Namespace:: Android.App.AppSearch

Assembly:: Mono.Android.dll

Important

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Migrates GenericDocument to an older version of AppSearchSchema.

[Android.Runtime.Register("onDowngrade", "(IILandroid/app/appsearch/GenericDocument;)Landroid/app/appsearch/GenericDocument;", "GetOnDowngrade_IILandroid_app_appsearch_GenericDocument_Handler", ApiSince=31)]
public abstract Android.App.AppSearch.GenericDocument OnDowngrade (int currentVersion, int finalVersion, Android.App.AppSearch.GenericDocument document);

[<Android.Runtime.Register("onDowngrade", "(IILandroid/app/appsearch/GenericDocument;)Landroid/app/appsearch/GenericDocument;", "GetOnDowngrade_IILandroid_app_appsearch_GenericDocument_Handler", ApiSince=31)>]
abstract member OnDowngrade : int * int * Android.App.AppSearch.GenericDocument -> Android.App.AppSearch.GenericDocument

Parameters

currentVersion: Int32

The current version of the document's schema.

finalVersion: Int32

The final version that documents need to be migrated to.

document: GenericDocument

The GenericDocument need to be translated to new version.

Returns

GenericDocument

A GenericDocument in new version.

Attributes: RegisterAttribute

Remarks

Java documentation for android.app.appsearch.Migrator.onDowngrade(int, int, android.app.appsearch.GenericDocument).

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to

共用方式為