```
public final class Descriptors
extends java.lang.Object
```
Contains a collection of classes which describe protocol message types. Every message type has a Descriptors.Descriptor, which lists all its fields and other information about a type. You can get a message type's descriptor by calling MessageType.getDescriptor(), or (given a message object of the type) message.getDescriptorForType(). Furthermore, each message is associated with a Descriptors.FileDescriptor for a relevant .proto file. You can obtain it by calling Descriptor.getFile(). A Descriptors.FileDescriptor contains descriptors for all the messages defined in that file, and file descriptors for all the imported .proto files. Descriptors are built from DescriptorProtos, as defined in google/protobuf/descriptor.proto.

Nested Classes
Modifier and Type	Class	Description
`static class`	`Descriptors.Descriptor`	Describes a message type.
`static class`	`Descriptors.DescriptorValidationException`	Thrown when building descriptors fails because the source DescriptorProtos are not valid.
`static class`	`Descriptors.EnumDescriptor`	Describes an enum type.
`static class`	`Descriptors.EnumValueDescriptor`	Describes one value within an enum type.
`static class`	`Descriptors.FieldDescriptor`	Describes a field of a message type.
`static class`	`Descriptors.FileDescriptor`	Describes a `.proto` file, including everything defined within.
`static class`	`Descriptors.MethodDescriptor`	Describes one method within a service type.
`static class`	`Descriptors.ServiceDescriptor`	Describes a service type.

Method Summary
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Class Descriptors