public sealed class ExistenceFilter : IMessage<ExistenceFilter>, IEquatable<ExistenceFilter>, IDeepCloneable<ExistenceFilter>, IBufferMessage, IMessage
Reference documentation and code samples for the Firestore v1 API class ExistenceFilter.
A digest of all the documents that match a given target.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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."],[[["\u003cp\u003eThe latest version of the \u003ccode\u003eExistenceFilter\u003c/code\u003e class within the Firestore v1 API is 3.10.0, with multiple prior versions available for use.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eExistenceFilter\u003c/code\u003e is a class in the \u003ccode\u003eGoogle.Cloud.Firestore.V1\u003c/code\u003e namespace, providing a digest of documents matching a specific target and it inherits from the base object class.\u003c/p\u003e\n"],["\u003cp\u003eThis class is part of the \u003ccode\u003eGoogle.Cloud.Firestore.V1.dll\u003c/code\u003e assembly and implements interfaces like \u003ccode\u003eIMessage\u003c/code\u003e, \u003ccode\u003eIEquatable\u003c/code\u003e, and \u003ccode\u003eIDeepCloneable\u003c/code\u003e, among others, adding more functionality.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eExistenceFilter\u003c/code\u003e objects can be created using a default constructor or a copy constructor, and it has the \u003ccode\u003eCount\u003c/code\u003e and \u003ccode\u003eTargetId\u003c/code\u003e properties, both of which are integer types, to manage the documents that match a target.\u003c/p\u003e\n"],["\u003cp\u003eThe class is used to track the number of documents that match a specific target, with any discrepancies requiring manual reconciliation by the client.\u003c/p\u003e\n"]]],[],null,[]]
