# RemoteDescriptorRegistry Summary:[Methods](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptorRegistry#pubmethods)\|[Inherited Methods](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptorRegistry#inhmethods)\|[\[Expand All\]](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptorRegistry#) # RemoteDescriptorRegistry | This package is part of the Android[support library](https://developer.android.com/topic/libraries/support-library)which is no longer maintained. The support library has been superseded by[AndroidX](https://developer.android.com/jetpack/androidx)which is part of[Jetpack](https://developer.android.com/jetpack). We recommend using the AndroidX libraries in all new projects. You should also consider[migrating](https://developer.android.com/jetpack/androidx/migrate)existing projects to AndroidX. To find the AndroidX class that maps to this deprecated class, see the AndroidX support library[class mappings](https://developer.android.com/jetpack/androidx/migrate/class-mappings). ` public final class RemoteDescriptorRegistry ` ` extends `[Object](https://developer.android.com/reference/java/lang/Object.html)` `` ` |---|---------------------------------------------------------------| | [java.lang.Object](https://developer.android.com/reference/java/lang/Object.html) || | ↳ | android.support.test.espresso.remote.RemoteDescriptorRegistry |
*** ** * ** *** A registry for registering remote descriptors. Remote descriptors are registered in the form of a[RemoteDescriptor](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptor)object. ## Summary | ### Public methods || |---------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` `[RemoteDescriptor](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptor) | ` `[argForInstanceType](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptorRegistry#argForInstanceType(java.lang.Class))`(`[Class](https://developer.android.com/reference/java/lang/Class.html)` targetType) ` | | ` `[RemoteDescriptor](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptor) | ` `[argForMsgType](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptorRegistry#argForMsgType(java.lang.Class))`(`[Class](https://developer.android.com/reference/java/lang/Class.html)` protoMsgType) ` | | ` `[RemoteDescriptor](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptor) | ` `[argForRemoteTypeUrl](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptorRegistry#argForRemoteTypeUrl(java.lang.String))`(`[String](https://developer.android.com/reference/java/lang/String.html)` typeUrl) ` Returns an[RemoteDescriptor](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptor)by its any type url. | | ` static `[RemoteDescriptorRegistry](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptorRegistry) | ` `[getInstance](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptorRegistry#getInstance())`() ` Returns a[RemoteDescriptorRegistry](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptorRegistry)object | | ` boolean` | ` `[hasArgForInstanceType](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptorRegistry#hasArgForInstanceType(java.lang.Class))`(`[Class](https://developer.android.com/reference/java/lang/Class.html)` instanceType) ` Checks if an instance type is registered with this registry. | | ` boolean` | ` `[registerRemoteTypeArgs](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptorRegistry#registerRemoteTypeArgs(java.util.List))`(`[List](https://developer.android.com/reference/java/util/List.html)`<`[RemoteDescriptor](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptor)`> remoteDescriptors) ` | | ` void` | ` `[unregisterRemoteTypeArgs](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptorRegistry#unregisterRemoteTypeArgs(java.util.List))`(`[List](https://developer.android.com/reference/java/util/List.html)`<`[RemoteDescriptor](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptor)`> remoteDescriptors) ` | | ### Inherited methods | |-----------------------|---| | [![](https://developer.android.com/static/assets/images/styles/disclosure_down.png)](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptorRegistry#)From class` `[java.lang.Object](https://developer.android.com/reference/java/lang/Object.html)` ` |-------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------| | ` `[Object](https://developer.android.com/reference/java/lang/Object.html) | ` clone() ` | | ` boolean` | ` equals(`[Object](https://developer.android.com/reference/java/lang/Object.html)` arg0) ` | | ` void` | ` finalize() ` | | ` final `[Class](https://developer.android.com/reference/java/lang/Class.html)`` | ` getClass() ` | | ` int` | ` hashCode() ` | | ` final void` | ` notify() ` | | ` final void` | ` notifyAll() ` | | ` `[String](https://developer.android.com/reference/java/lang/String.html) | ` toString() ` | | ` final void` | ` wait(long arg0, int arg1) ` | | ` final void` | ` wait(long arg0) ` | | ` final void` | ` wait() ` | || ## Public methods ### argForInstanceType ``` RemoteDescriptor argForInstanceType (Class targetType) ```

| Parameters || |--------------|----------------| | `targetType` | `Class`
| | Returns || |-------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------| | [RemoteDescriptor](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptor) | an[RemoteDescriptor](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptor)object by its target type.
| ### argForMsgType ``` RemoteDescriptor argForMsgType (Class protoMsgType) ```

| Parameters || |----------------|----------------| | `protoMsgType` | `Class`
| | Returns || |-------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------| | [RemoteDescriptor](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptor) | an[RemoteDescriptor](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptor)object by its proto message type.
| ### argForRemoteTypeUrl ``` RemoteDescriptor argForRemoteTypeUrl (String typeUrl) ``` Returns an[RemoteDescriptor](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptor)by its any type url. The any type url in this case must match the remote type class, which knows how to convert a class to and from its target type!
| Parameters || |-----------|-----------------| | `typeUrl` | `String`
| | Returns || |-------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------| | [RemoteDescriptor](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptor) | an[RemoteDescriptor](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptor)object by its remote type url.
| ### getInstance ``` RemoteDescriptorRegistry getInstance () ``` Returns a[RemoteDescriptorRegistry](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptorRegistry)object
| Returns || |-----------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------| | [RemoteDescriptorRegistry](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptorRegistry) | an instance of[RemoteDescriptorRegistry](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptorRegistry)object.
| ### hasArgForInstanceType ``` boolean hasArgForInstanceType (Class instanceType) ``` Checks if an instance type is registered with this registry.
| Parameters || |----------------|---------------------------------------| | `instanceType` | `Class`: the instance to check
| | Returns || |-----------|------------------------------------------------------------------------------------------------------------------------------------------------------------------| | `boolean` | true if a[RemoteDescriptor](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptor)is registered for instance type
| ### registerRemoteTypeArgs ``` boolean registerRemoteTypeArgs (List remoteDescriptors) ```

| Parameters || |---------------------|---------------| | `remoteDescriptors` | `List`
| | Returns || |-----------|--------| | `boolean` |
| ### unregisterRemoteTypeArgs ``` void unregisterRemoteTypeArgs (List remoteDescriptors) ```

| Parameters || |---------------------|---------------| | `remoteDescriptors` | `List`
| - ## Interfaces - [Bindable](https://developer.android.com/reference/android/support/test/espresso/remote/Bindable) - [Converter](https://developer.android.com/reference/android/support/test/espresso/remote/Converter) - [EspressoRemoteMessage](https://developer.android.com/reference/android/support/test/espresso/remote/EspressoRemoteMessage) - [EspressoRemoteMessage.From](https://developer.android.com/reference/android/support/test/espresso/remote/EspressoRemoteMessage.From) - [EspressoRemoteMessage.To](https://developer.android.com/reference/android/support/test/espresso/remote/EspressoRemoteMessage.To) - [RemoteInteraction](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteInteraction) - ## Classes - [ConstructorInvocation](https://developer.android.com/reference/android/support/test/espresso/remote/ConstructorInvocation) - [EspressoRemote](https://developer.android.com/reference/android/support/test/espresso/remote/EspressoRemote) - [FieldDescriptor](https://developer.android.com/reference/android/support/test/espresso/remote/FieldDescriptor) - [GenericRemoteMessage](https://developer.android.com/reference/android/support/test/espresso/remote/GenericRemoteMessage) - [InteractionRequest](https://developer.android.com/reference/android/support/test/espresso/remote/InteractionRequest) - [InteractionRequest.Builder](https://developer.android.com/reference/android/support/test/espresso/remote/InteractionRequest.Builder) - [InteractionResponse](https://developer.android.com/reference/android/support/test/espresso/remote/InteractionResponse) - [InteractionResponse.Builder](https://developer.android.com/reference/android/support/test/espresso/remote/InteractionResponse.Builder) - [InteractionResponse.RemoteError](https://developer.android.com/reference/android/support/test/espresso/remote/InteractionResponse.RemoteError) - [NoopRemoteInteraction](https://developer.android.com/reference/android/support/test/espresso/remote/NoopRemoteInteraction) - [ProtoUtils](https://developer.android.com/reference/android/support/test/espresso/remote/ProtoUtils) - [RemoteDescriptor](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptor) - [RemoteDescriptor.Builder](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptor.Builder) - [RemoteDescriptorRegistry](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteDescriptorRegistry) - [RemoteInteractionRegistry](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteInteractionRegistry) - [TypeProtoConverters](https://developer.android.com/reference/android/support/test/espresso/remote/TypeProtoConverters) - ## Enums - [InteractionResponse.Status](https://developer.android.com/reference/android/support/test/espresso/remote/InteractionResponse.Status) - ## Exceptions - [NoRemoteEspressoInstanceException](https://developer.android.com/reference/android/support/test/espresso/remote/NoRemoteEspressoInstanceException) - [RemoteEspressoException](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteEspressoException) - [RemoteProtocolException](https://developer.android.com/reference/android/support/test/espresso/remote/RemoteProtocolException)