Added in API level 31

Summary: Nested Classes | Constants | Methods | Inherited Methods

SetSchemaRequest

Kotlin |Java

public final class SetSchemaRequest
extends Object

java.lang.Object
↳	android.app.appsearch.SetSchemaRequest

Encapsulates a request to update the schema of an AppSearchSession database.

The schema is composed of a collection of AppSearchSchema objects, each of which defines a unique type of data.

The first call to SetSchemaRequest will set the provided schema and store it within the AppSearchSession database.

Subsequent calls will compare the provided schema to the previously saved schema, to determine how to treat existing documents.

The following types of schema modifications are always safe and are made without deleting any existing documents:

Addition of new AppSearchSchema types
Addition of new properties to an existing AppSearchSchema type
Changing the cardinality of a property to be less restrictive

The following types of schema changes are not backwards compatible:

Removal of an existing AppSearchSchema type
Removal of a property from an existing AppSearchSchema type
Changing the data type of an existing property
Changing the cardinality of a property to be more restrictive

Providing a schema with incompatible changes, will throw an AppSearchException, with a message describing the incompatibility. As a result, the previously set schema will remain unchanged.

Backward incompatible changes can be made by :

setting SetSchemaRequest.Builder.setForceOverride method to true. This deletes all documents that are incompatible with the new schema. The new schema is then saved and persisted to disk.
Add a Migrator for each incompatible type and make no deletion. The migrator will migrate documents from its old schema version to the new version. Migrated types will be set into both SetSchemaResponse.getIncompatibleTypes() and SetSchemaResponse.getMigratedTypes(). See the migration section below.

See also:

Summary

Nested classes
`class`	`SetSchemaRequest.Builder` Builder for `SetSchemaRequest` objects.

Constants
`int`	`READ_ASSISTANT_APP_SEARCH_DATA` The `Manifest.permission.READ_ASSISTANT_APP_SEARCH_DATA` AppSearch supported in `SetSchemaRequest.Builder.addRequiredPermissionsForSchemaTypeVisibility`
`int`	`READ_CALENDAR` The `Manifest.permission.READ_CALENDAR` AppSearch supported in `SetSchemaRequest.Builder.addRequiredPermissionsForSchemaTypeVisibility(String, Set)`
`int`	`READ_CONTACTS` The `Manifest.permission.READ_CONTACTS` AppSearch supported in `SetSchemaRequest.Builder.addRequiredPermissionsForSchemaTypeVisibility(String, Set)`
`int`	`READ_EXTERNAL_STORAGE` The `Manifest.permission.READ_EXTERNAL_STORAGE` AppSearch supported in `SetSchemaRequest.Builder.addRequiredPermissionsForSchemaTypeVisibility(String, Set)`
`int`	`READ_HOME_APP_SEARCH_DATA` The `Manifest.permission.READ_HOME_APP_SEARCH_DATA` AppSearch supported in `SetSchemaRequest.Builder.addRequiredPermissionsForSchemaTypeVisibility`
`int`	`READ_SMS` The `Manifest.permission.READ_SMS` AppSearch supported in `SetSchemaRequest.Builder.addRequiredPermissionsForSchemaTypeVisibility(String, Set)`

Public methods
`Map<String, Migrator>`	`getMigrators()` Returns the map of `Migrator`, the key will be the schema type of the `Migrator` associated with.
`Map<String, PackageIdentifier>`	`getPubliclyVisibleSchemas()` Returns a mapping of publicly visible schemas to the `PackageIdentifier` specifying the package the schemas are from.
`Map<String, Set<Set<Integer>>>`	`getRequiredPermissionsForSchemaTypeVisibility()` Returns a mapping of schema types to the Map of `Manifest.permission` combinations that querier must hold to access that schema type.
`Set<AppSearchSchema>`	`getSchemas()` Returns the `AppSearchSchema` types that are part of this request.
`Set<String>`	`getSchemasNotDisplayedBySystem()` Returns all the schema types that are opted out of being displayed and visible on any system UI surface.
`Map<String, Set<SchemaVisibilityConfig>>`	`getSchemasVisibleToConfigs()` Returns a mapping of schema types to the set of `SchemaVisibilityConfig` that have access to that schema type.
`Map<String, Set<PackageIdentifier>>`	`getSchemasVisibleToPackages()` Returns a mapping of schema types to the set of packages that have access to that schema type.
`int`	`getVersion()` Returns the database overall schema version.
`boolean`	`isForceOverride()` Returns whether this request will force the schema to be overridden.

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeoutMillis, int nanos)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait()` Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Constants

READ_ASSISTANT_APP_SEARCH_DATA

Added in API level 33
Also in T Extensions 3

public static final int READ_ASSISTANT_APP_SEARCH_DATA

The Manifest.permission.READ_ASSISTANT_APP_SEARCH_DATA AppSearch supported in SetSchemaRequest.Builder.addRequiredPermissionsForSchemaTypeVisibility

Constant Value: 6 (0x00000006)

READ_CALENDAR

Added in API level 33
Also in T Extensions 3

public static final int READ_CALENDAR

The Manifest.permission.READ_CALENDAR AppSearch supported in SetSchemaRequest.Builder.addRequiredPermissionsForSchemaTypeVisibility(String, Set)

Constant Value: 2 (0x00000002)

READ_CONTACTS

Added in API level 33
Also in T Extensions 3

public static final int READ_CONTACTS

The Manifest.permission.READ_CONTACTS AppSearch supported in SetSchemaRequest.Builder.addRequiredPermissionsForSchemaTypeVisibility(String, Set)

Constant Value: 3 (0x00000003)

READ_EXTERNAL_STORAGE

Added in API level 33
Also in T Extensions 3

public static final int READ_EXTERNAL_STORAGE

The Manifest.permission.READ_EXTERNAL_STORAGE AppSearch supported in SetSchemaRequest.Builder.addRequiredPermissionsForSchemaTypeVisibility(String, Set)

Constant Value: 4 (0x00000004)

READ_HOME_APP_SEARCH_DATA

Added in API level 33
Also in T Extensions 3

public static final int READ_HOME_APP_SEARCH_DATA

The Manifest.permission.READ_HOME_APP_SEARCH_DATA AppSearch supported in SetSchemaRequest.Builder.addRequiredPermissionsForSchemaTypeVisibility

Constant Value: 5 (0x00000005)

READ_SMS

Added in API level 33
Also in T Extensions 3

public static final int READ_SMS

The Manifest.permission.READ_SMS AppSearch supported in SetSchemaRequest.Builder.addRequiredPermissionsForSchemaTypeVisibility(String, Set)

Constant Value: 1 (0x00000001)

Public methods

getMigrators

Added in API level 31

public Map<String, Migrator> getMigrators ()

Returns the map of Migrator, the key will be the schema type of the Migrator associated with.

Returns
`Map<String, Migrator>`	This value cannot be `null`.

getPubliclyVisibleSchemas

Added in API level 35
Also in T Extensions 13

public Map<String, PackageIdentifier> getPubliclyVisibleSchemas ()

Returns a mapping of publicly visible schemas to the PackageIdentifier specifying the package the schemas are from.

Returns
`Map<String, PackageIdentifier>`	This value cannot be `null`.

getRequiredPermissionsForSchemaTypeVisibility

Added in API level 33
Also in T Extensions 3

public Map<String, Set<Set<Integer>>> getRequiredPermissionsForSchemaTypeVisibility ()

Returns a mapping of schema types to the Map of Manifest.permission combinations that querier must hold to access that schema type.

The querier could read the GenericDocument objects under the schemaType if they holds ALL required permissions of ANY of the individual value sets.

For example, if the Map contains {{permissionA, PermissionB}, {PermissionC, PermissionD}, {PermissionE}}.

A querier holds both PermissionA and PermissionB has access.
A querier holds both PermissionC and PermissionD has access.
A querier holds only PermissionE has access.
A querier holds both PermissionA and PermissionE has access.
A querier holds only PermissionA doesn't have access.
A querier holds both PermissionA and PermissionC doesn't have access.

It\u2019s inefficient to call this method repeatedly.

Returns
`Map<String, Set<Set<Integer>>>`	The map contains schema type and all combinations of required permission for querier to access it. The supported Permission are `SetSchemaRequest.READ_SMS`, `READ_CALENDAR`, `SetSchemaRequest.READ_CONTACTS`, `READ_EXTERNAL_STORAGE`, `READ_HOME_APP_SEARCH_DATA` and `READ_ASSISTANT_APP_SEARCH_DATA`. This value cannot be `null`.

getSchemas

Added in API level 31

public Set<AppSearchSchema> getSchemas ()

Returns the AppSearchSchema types that are part of this request.

Returns
`Set<AppSearchSchema>`	This value cannot be `null`.

getSchemasNotDisplayedBySystem

Added in API level 31

public Set<String> getSchemasNotDisplayedBySystem ()

Returns all the schema types that are opted out of being displayed and visible on any system UI surface.

Returns
`Set<String>`	This value cannot be `null`.

getSchemasVisibleToConfigs

Added in API level 35
Also in T Extensions 13

public Map<String, Set<SchemaVisibilityConfig>> getSchemasVisibleToConfigs ()

Returns a mapping of schema types to the set of SchemaVisibilityConfig that have access to that schema type.

It\u2019s inefficient to call this method repeatedly.

Returns
`Map<String, Set<SchemaVisibilityConfig>>`	This value cannot be `null`.

See also:

SetSchemaRequest.Builder.addSchemaTypeVisibleToConfig(String, SchemaVisibilityConfig)

getSchemasVisibleToPackages

Added in API level 31

public Map<String, Set<PackageIdentifier>> getSchemasVisibleToPackages ()

Returns a mapping of schema types to the set of packages that have access to that schema type.

It\u2019s inefficient to call this method repeatedly.

Returns
`Map<String, Set<PackageIdentifier>>`	This value cannot be `null`.

getVersion

Added in API level 31

public int getVersion ()

Returns the database overall schema version.

Returns
`int`	Value is 1 or greater

isForceOverride

Added in API level 31

public boolean isForceOverride ()

Returns whether this request will force the schema to be overridden.

Returns
`boolean`

SetSchemaRequest

Summary

Nested classes

Constants

Public methods

Inherited methods

Constants

READ_ASSISTANT_APP_SEARCH_DATA

READ_CALENDAR

READ_CONTACTS

READ_EXTERNAL_STORAGE

READ_HOME_APP_SEARCH_DATA

READ_SMS

Public methods

getMigrators

getPubliclyVisibleSchemas

getRequiredPermissionsForSchemaTypeVisibility

getSchemas

getSchemasNotDisplayedBySystem

getSchemasVisibleToConfigs

getSchemasVisibleToPackages

getVersion

isForceOverride

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