public sealed class Target : IMessage<Target>, IEquatable<Target>, IDeepCloneable<Target>, IBufferMessage, IMessageReference documentation and code samples for the Firestore v1 API class Target.
A specification of a set of documents to listen to.
Namespace
Google.Cloud.Firestore.V1Assembly
Google.Cloud.Firestore.V1.dll
Constructors
Target()
public Target()Target(Target)
public Target(Target other)| Parameter | |
|---|---|
| Name | Description |
other | Target |
Properties
Documents
public Target.Types.DocumentsTarget Documents { get; set; }A target specified by a set of document names.
| Property Value | |
|---|---|
| Type | Description |
TargetTypesDocumentsTarget | |
ExpectedCount
public int? ExpectedCount { get; set; }The number of documents that last matched the query at the resume token or read time.
This value is only relevant when a resume_type is provided. This value
being present and greater than zero signals that the client wants
ExistenceFilter.unchanged_names to be included in the response.
| Property Value | |
|---|---|
| Type | Description |
int | |
HasResumeToken
public bool HasResumeToken { get; }Gets whether the "resume_token" field is set
| Property Value | |
|---|---|
| Type | Description |
bool | |
Once
public bool Once { get; set; }If the target should be removed once it is current and consistent.
| Property Value | |
|---|---|
| Type | Description |
bool | |
Query
public Target.Types.QueryTarget Query { get; set; }A target specified by a query.
| Property Value | |
|---|---|
| Type | Description |
TargetTypesQueryTarget | |
ReadTime
public Timestamp ReadTime { get; set; }Start listening after a specific read_time.
The client must know the state of matching documents at this time.
| Property Value | |
|---|---|
| Type | Description |
Timestamp | |
ResumeToken
public ByteString ResumeToken { get; set; }A resume token from a prior [TargetChange][google.firestore.v1.TargetChange] for an identical target.
Using a resume token with a different target is unsupported and may fail.
| Property Value | |
|---|---|
| Type | Description |
ByteString | |
ResumeTypeCase
public Target.ResumeTypeOneofCase ResumeTypeCase { get; }| Property Value | |
|---|---|
| Type | Description |
TargetResumeTypeOneofCase | |
TargetId
public int TargetId { get; set; }The target ID that identifies the target on the stream. Must be a positive number and non-zero.
If target_id is 0 (or unspecified), the server will assign an ID for this
target and return that in a TargetChange::ADD event. Once a target with
target_id=0 is added, all subsequent targets must also have
target_id=0. If an AddTarget request with target_id != 0 is
sent to the server after a target with target_id=0 is added, the server
will immediately send a response with a TargetChange::Remove event.
Note that if the client sends multiple AddTarget requests
without an ID, the order of IDs returned in TargetChage.target_ids are
undefined. Therefore, clients should provide a target ID instead of relying
on the server to assign one.
If target_id is non-zero, there must not be an existing active target on
this stream with the same ID.
| Property Value | |
|---|---|
| Type | Description |
int | |
TargetTypeCase
public Target.TargetTypeOneofCase TargetTypeCase { get; }| Property Value | |
|---|---|
| Type | Description |
TargetTargetTypeOneofCase | |