FirebaseFirestore Framework Reference

Protocols

The following protocols are available globally.

FIRListenerRegistration
Represents a listener that can be removed by calling remove.
Declaration
Objective-C

@protocol FIRListenerRegistration <NSObject>
FIRLocalCacheSettings
Marker protocol implemented by all supported cache settings.

The two cache types supported are PersistentCacheSettings and MemoryCacheSettings. Custom implementation is not supported.
Declaration
Objective-C

@protocol FIRLocalCacheSettings
FIRMemoryGarbageCollectorSettings
Marker protocol implemented by all supported garbage collector settings.

The two cache types supported are MemoryEagerGCSettings and MemoryLRUGCSettings. Custom implementation is not supported.
Declaration
Objective-C

@protocol FIRMemoryGarbageCollectorSettings

Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

Last updated 2025-03-11 UTC.