SetSchemaRequest.Builder

public static final class SetSchemaRequest.Builder extends Object

Builder for SetSchemaRequest objects.

Public Constructor Summary

Public Method Summary

SetSchemaRequest.Builder
addRequiredPermissionsForSchemaTypeVisibility(String schemaType, Set<Integer> permissions)
Adds a set of required Android Manifest.permission combination to the given schema type.
SetSchemaRequest.Builder
addSchemaTypeVisibleToConfig(String schemaType, SchemaVisibilityConfig schemaVisibilityConfig)
Sets the documents from the provided schemaType can be read by the caller if they match the ALL visibility requirements set in SchemaVisibilityConfig.
SetSchemaRequest.Builder
addSchemas(Collection<AppSearchSchema> schemas)
Adds a collection of AppSearchSchema objects to the schema.
SetSchemaRequest.Builder
addSchemas(AppSearchSchema... schemas)
Adds one or more AppSearchSchema types to the schema.
SetSchemaRequest
build()
Builds a new SetSchemaRequest object.
SetSchemaRequest.Builder
clearRequiredPermissionsForSchemaTypeVisibility(String schemaType)
Clears all required permissions combinations for the given schema type.
SetSchemaRequest.Builder
clearSchemaTypeVisibleToConfigs(String schemaType)
Clears all visible to SchemaVisibilityConfig for the given schema type.
SetSchemaRequest.Builder
setForceOverride(boolean forceOverride)
Sets whether or not to override the current schema in the AppSearchClient database.
SetSchemaRequest.Builder
setMigrator(String schemaType, Migrator migrator)
Sets the Migrator associated with the given SchemaType.
SetSchemaRequest.Builder
setMigrators(Map<StringMigrator> migrators)
Sets a Map of Migrators.
SetSchemaRequest.Builder
setPubliclyVisibleSchema(String schema, PackageIdentifier packageIdentifier)
Specify that the schema should be publicly available, to packages which already have visibility to packageIdentifier.
SetSchemaRequest.Builder
setSchemaTypeDisplayedBySystem(String schemaType, boolean displayed)
Sets whether or not documents from the provided schemaType will be displayed and visible on any system UI surface.
SetSchemaRequest.Builder
setSchemaTypeVisibilityForPackage(String schemaType, boolean visible, PackageIdentifier packageIdentifier)
Sets whether or not documents from the provided schemaType can be read by the specified package.
SetSchemaRequest.Builder
setVersion(int version)
Sets the version number of the overall AppSearchSchema in the database.

Inherited Method Summary

Public Constructors

public Builder ()

Public Methods

public SetSchemaRequest.Builder addRequiredPermissionsForSchemaTypeVisibility (String schemaType, Set<Integer> permissions)

Adds a set of required Android Manifest.permission combination to the given schema type.

If the querier holds ALL of the required permissions in this combination, they will have access to read GenericDocument objects of the given schema type.

You can call this method to add multiple permission combinations, and the querier will have access if they holds ANY of the combinations.

The supported Permissions are SetSchemaRequest.READ_SMS, SetSchemaRequest.READ_CALENDAR, SetSchemaRequest.READ_CONTACTS, SetSchemaRequest.READ_EXTERNAL_STORAGE, SetSchemaRequest.READ_HOME_APP_SEARCH_DATA and SetSchemaRequest.READ_ASSISTANT_APP_SEARCH_DATA.

The relationship between permissions added in this method and package visibility setting setSchemaTypeVisibilityForPackage(String, boolean, PackageIdentifier) is "OR". The caller could access the schema if they match ANY requirements. If you want to set "AND" requirements like a caller must hold required permissions AND it is a specified package, please use addSchemaTypeVisibleToConfig(String, SchemaVisibilityConfig).

Parameters
schemaType The schema type to set visibility on.
permissions A set of required Android permissions the caller need to hold to access GenericDocument objects that under the given schema.
Throws
IllegalArgumentException – if input unsupported permission.

public SetSchemaRequest.Builder addSchemaTypeVisibleToConfig (String schemaType, SchemaVisibilityConfig schemaVisibilityConfig)

Sets the documents from the provided schemaType can be read by the caller if they match the ALL visibility requirements set in SchemaVisibilityConfig.

The requirements in a SchemaVisibilityConfig is "AND" relationship. A caller must match ALL requirements to access the schema. For example, a caller must hold required permissions AND it is a specified package.

You can call this method repeatedly to add multiple SchemaVisibilityConfigs, and the querier will have access if they match ANY of the SchemaVisibilityConfig.

Parameters
schemaType The schema type to set visibility on.
schemaVisibilityConfig The SchemaVisibilityConfig holds all requirements that a call must to match to access the schema.

public SetSchemaRequest.Builder addSchemas (Collection<AppSearchSchema> schemas)

Adds a collection of AppSearchSchema objects to the schema.

An AppSearchSchema object represents one type of structured data.

public SetSchemaRequest.Builder addSchemas (AppSearchSchema... schemas)

Adds one or more AppSearchSchema types to the schema.

An AppSearchSchema object represents one type of structured data.

Any documents of these types will be displayed on system UI surfaces by default.

public SetSchemaRequest build ()

Builds a new SetSchemaRequest object.

Throws
IllegalArgumentException if schema types were referenced, but the corresponding AppSearchSchema type was never added.

public SetSchemaRequest.Builder clearRequiredPermissionsForSchemaTypeVisibility (String schemaType)

Clears all required permissions combinations for the given schema type.

public SetSchemaRequest.Builder clearSchemaTypeVisibleToConfigs (String schemaType)

Clears all visible to SchemaVisibilityConfig for the given schema type.

public SetSchemaRequest.Builder setForceOverride (boolean forceOverride)

Sets whether or not to override the current schema in the AppSearchClient database.

Call this method whenever backward incompatible changes need to be made by setting forceOverride to true. As a result, during execution of the setSchema operation, all documents that are incompatible with the new schema will be deleted and the new schema will be saved and persisted.

By default, this is false.

public SetSchemaRequest.Builder setMigrator (String schemaType, Migrator migrator)

Sets the Migrator associated with the given SchemaType.

The Migrator migrates all GenericDocuments under given schema type from the current version number stored in AppSearch to the final version set via setVersion(int).

A Migrator will be invoked if the current version number stored in AppSearch is different from the final version set via setVersion(int) and Migrator.shouldMigrate(int, int) returns true.

The target schema type of the output GenericDocument of Migrator.onUpgrade(int, int, GenericDocument) or Migrator.onDowngrade(int, int, GenericDocument) must exist in this SetSchemaRequest.

Parameters
schemaType The schema type to set migrator on.
migrator The migrator translates a document from its current version to the final version set via setVersion(int).

public SetSchemaRequest.Builder setMigrators (Map<StringMigrator> migrators)

Sets a Map of Migrators.

The key of the map is the schema type that the Migrator value applies to.

The Migrator migrates all GenericDocuments under given schema type from the current version number stored in AppSearch to the final version set via setVersion(int).

A Migrator will be invoked if the current version number stored in AppSearch is different from the final version set via setVersion(int) and Migrator.shouldMigrate(int, int) returns true.

The target schema type of the output GenericDocument of Migrator.onUpgrade(int, int, GenericDocument) or Migrator.onDowngrade(int, int, GenericDocument) must exist in this SetSchemaRequest.

Parameters
migrators A Map of migrators that translate a document from its current version to the final version set via setVersion(int). The key of the map is the schema type that the Migrator value applies to.

public SetSchemaRequest.Builder setPubliclyVisibleSchema (String schema, PackageIdentifier packageIdentifier)

Specify that the schema should be publicly available, to packages which already have visibility to packageIdentifier. This visibility is determined by the result of PackageManager.canPackageQuery(String, String).

It is possible for the packageIdentifier parameter to be different from the package performing the indexing. This might happen in the case of an on-device indexer processing information about various packages. The visibility will be the same regardless of which package indexes the document, as the visibility is based on the packageIdentifier parameter.

If this is called repeatedly with the same schema, the PackageIdentifier in the last call will be used as the "from" package for that schema.

Calling this with packageIdentifier set to null is valid, and will remove public visibility for the schema.

Parameters
schema the schema to make publicly accessible.
packageIdentifier if an app can see this package via PackageManager#canPackageQuery, it will be able to see the documents of type schema.

public SetSchemaRequest.Builder setSchemaTypeDisplayedBySystem (String schemaType, boolean displayed)

Sets whether or not documents from the provided schemaType will be displayed and visible on any system UI surface.

This setting applies to the provided schemaType only, and does not persist across AppSearchClient.setSchema(SetSchemaRequest, String) calls.

The default behavior, if this method is not called, is to allow types to be displayed on system UI surfaces.

Parameters
schemaType The name of an AppSearchSchema within the same SetSchemaRequest, which will be configured.
displayed Whether documents of this type will be displayed on system UI surfaces.

public SetSchemaRequest.Builder setSchemaTypeVisibilityForPackage (String schemaType, boolean visible, PackageIdentifier packageIdentifier)

Sets whether or not documents from the provided schemaType can be read by the specified package.

Each package is represented by a PackageIdentifier, containing a package name and a byte array of type PackageManager.CERT_INPUT_SHA256.

To opt into one-way data sharing with another application, the developer will need to explicitly grant the other application’s package name and certificate Read access to its data.

For two-way data sharing, both applications need to explicitly grant Read access to one another.

By default, data sharing between applications is disabled.

The relationship between permissions added in this method and package visibility setting setSchemaTypeVisibilityForPackage(String, boolean, PackageIdentifier) is "OR". The caller could access the schema if they match ANY requirements. If you want to set "AND" requirements like a caller must hold required permissions AND it is a specified package, please use addSchemaTypeVisibleToConfig(String, SchemaVisibilityConfig).

Parameters
schemaType The schema type to set visibility on.
visible Whether the schemaType will be visible or not.
packageIdentifier Represents the package that will be granted visibility.

public SetSchemaRequest.Builder setVersion (int version)

Sets the version number of the overall AppSearchSchema in the database.

The AppSearchClient database can only ever hold documents for one version at a time.

Setting a version number that is different from the version number currently stored in AppSearch will result in AppSearch calling the Migrators provided to AppSearchClient.setSchema(SetSchemaRequest, String) to migrate the documents already in AppSearch from the previous version to the one set in this request. The version number can be updated without any other changes to the set of schemas.

The version number can stay the same, increase, or decrease relative to the current version number that is already stored in the AppSearchClient database.

The version of an empty database will always be 0. You cannot set version to the SetSchemaRequest, if it doesn't contains any AppSearchSchema.

Parameters
version A positive integer representing the version of the entire set of schemas represents the version of the whole schema in the AppSearchClient database, default version is 1.
Throws
IllegalArgumentException if the version is negative.