GPBExtensionRegistry Class Reference

#import <GPBExtensionRegistry.h>

Inheritance diagram for GPBExtensionRegistry:

Instance Methods
(void)	- addExtension:
(void)	- addExtensions:
(nullable GPBExtensionDescriptor *)	- extensionForDescriptor:fieldNumber:

Detailed Description

A table of known extensions, searchable by name or field number. When parsing a protocol message that might have extensions, you must provide a GPBExtensionRegistry in which you have registered any extensions that you want to be able to parse. Otherwise, those extensions will just be treated like unknown fields.

The Root classes provide +extensionRegistry for the extensions defined in a given file *and all files it imports. You can also create a GPBExtensionRegistry, and merge those registries to handle parsing extensions defined from non overlapping files.

GPBExtensionRegistry *registry = [[MyProtoFileRoot extensionRegistry] copy];
[registry addExtension:[OtherMessage neededExtension]]; // Not in MyProtoFile
NSError *parseError;
MyMessage *msg = [MyMessage parseData:data extensionRegistry:registry error:&parseError];

Definition at line 57 of file GPBExtensionRegistry.h.

Method Documentation

addExtension:

- (void) addExtension:

(GPBExtensionDescriptor *)

extension

Adds the given GPBExtensionDescriptor to this registry.

Parameters

extension

The extension description to add.

addExtensions:

- (void) addExtensions:

(GPBExtensionRegistry *)

registry

Adds all the extensions from another registry to this registry.

Parameters

registry

The registry to merge into this registry.

extensionForDescriptor:fieldNumber:

- (nullable GPBExtensionDescriptor *) extensionForDescriptor:		(GPBDescriptor *)	descriptor
fieldNumber:		(NSInteger)	fieldNumber

Looks for the extension registered for the given field number on a given GPBDescriptor.

Parameters

descriptor	The descriptor to look for a registered extension on.
fieldNumber	The field number of the extension to look for.

Returns

The registered GPBExtensionDescriptor or nil if none was found.

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The documentation for this class was generated from the following file:

• GPBExtensionRegistry.h