Contains a collection of classes which describe protocol message types.
Every message type has a 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 FileDescriptor for a relevant .proto file. You can obtain it by calling
Descriptor.getFile(). A 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.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[],[],null,["# Class Descriptors (3.19.4)\n\n public final class Descriptors\n\nContains a collection of classes which describe protocol message types.\n\nEvery message type has a Descriptor, which lists all its fields and other information\nabout a type. You can get a message type's descriptor by calling `\nMessageType.getDescriptor()`, or (given a message object of the type) `\nmessage.getDescriptorForType()`. Furthermore, each message is associated with a FileDescriptor for a relevant `.proto` file. You can obtain it by calling `\nDescriptor.getFile()`. A FileDescriptor contains descriptors for all the messages defined\nin that file, and file descriptors for all the imported `.proto` files.\n\nDescriptors are built from DescriptorProtos, as defined in `\ngoogle/protobuf/descriptor.proto`. \n\nInheritance\n-----------\n\n[java.lang.Object](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html) \\\u003e Descriptors \n\nInherited Members\n-----------------\n\n[Object.clone()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#clone--) \n[Object.equals(Object)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#equals-java.lang.Object-) \n[Object.finalize()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#finalize--) \n[Object.getClass()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#getClass--) \n[Object.hashCode()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#hashCode--) \n[Object.notify()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#notify--) \n[Object.notifyAll()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#notifyAll--) \n[Object.toString()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#toString--) \n[Object.wait()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait--) \n[Object.wait(long)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-) \n[Object.wait(long,int)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-int-)\n\nConstructors\n------------\n\n### Descriptors()\n\n public Descriptors()"]]
