public sealed class ExistenceFilter : IMessage<ExistenceFilter>, IEquatable<ExistenceFilter>, IDeepCloneable<ExistenceFilter>, IBufferMessage, IMessage
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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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\u003eThis webpage details the \u003ccode\u003eExistenceFilter\u003c/code\u003e class within the \u003ccode\u003eGoogle.Cloud.Firestore.V1\u003c/code\u003e namespace, which is used to provide a digest of documents matching a specified target.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version available is 3.10.0, and the page lists various past versions, from 2.3.0 to 3.9.0, of the \u003ccode\u003eExistenceFilter\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eExistenceFilter\u003c/code\u003e class implements multiple interfaces including \u003ccode\u003eIMessage\u003c/code\u003e, \u003ccode\u003eIEquatable\u003c/code\u003e, \u003ccode\u003eIDeepCloneable\u003c/code\u003e, and \u003ccode\u003eIBufferMessage\u003c/code\u003e, along with inheriting members from the \u003ccode\u003eObject\u003c/code\u003e class.\u003c/p\u003e\n"],["\u003cp\u003eThe class contains two properties, \u003ccode\u003eCount\u003c/code\u003e which is the total number of documents matching a specified \u003ccode\u003eTargetId\u003c/code\u003e and \u003ccode\u003eTargetId\u003c/code\u003e which is the identifier of the target the filter applies to.\u003c/p\u003e\n"],["\u003cp\u003eThe class has two constructors, a default constructor \u003ccode\u003eExistenceFilter()\u003c/code\u003e and a constructor that accepts an \u003ccode\u003eExistenceFilter\u003c/code\u003e object.\u003c/p\u003e\n"]]],[],null,[]]
