public sealed class Query : IMessage<Query>, IEquatable<Query>, IDeepCloneable<Query>, IBufferMessage, IMessageReference documentation and code samples for the Google Cloud Datastore v1 API class Query.
A query for entities.
Namespace
GoogleCloudGoogle.Cloud.DatastoreV1Assembly
Google.Cloud.Datastore.V1.dll
Constructors
Query()
public Query()Query(Query)
public Query(Query other)| Parameter | |
|---|---|
| Name | Description |
other | Query |
Query(string)
public Query(string kind)Creates a query over the given kind.
| Parameter | |
|---|---|
| Name | Description |
kind | stringThe kind of the query. Must not be null. |
Properties
DistinctOn
public RepeatedField<PropertyReference> DistinctOn { get; }The properties to make distinct. The query results will contain the first result for each distinct combination of values for the given properties (if empty, all results are returned).
| Property Value | |
|---|---|
| Type | Description |
RepeatedFieldPropertyReference | |
EndCursor
public ByteString EndCursor { get; set; }An ending point for the query results. Query cursors are returned in query result batches and can only be used to limit the same query.
| Property Value | |
|---|---|
| Type | Description |
ByteString | |
Filter
public Filter Filter { get; set; }The filter to apply.
| Property Value | |
|---|---|
| Type | Description |
Filter | |
Kind
public RepeatedField<KindExpression> Kind { get; }The kinds to query (if empty, returns entities of all kinds). Currently at most 1 kind may be specified.
| Property Value | |
|---|---|
| Type | Description |
RepeatedFieldKindExpression | |
Limit
public int? Limit { get; set; }The maximum number of results to return. Applies after all other constraints. Optional. Unspecified is interpreted as no limit. Must be >= 0 if specified.
| Property Value | |
|---|---|
| Type | Description |
int | |
Offset
public int Offset { get; set; }The number of results to skip. Applies before limit, but after all other constraints. Optional. Must be >= 0 if specified.
| Property Value | |
|---|---|
| Type | Description |
int | |
Order
public RepeatedField<PropertyOrder> Order { get; }The order to apply to the query results (if empty, order is unspecified).
| Property Value | |
|---|---|
| Type | Description |
RepeatedFieldPropertyOrder | |
Projection
public RepeatedField<Projection> Projection { get; }The projection to return. Defaults to returning all properties.
| Property Value | |
|---|---|
| Type | Description |
RepeatedFieldProjection | |
StartCursor
public ByteString StartCursor { get; set; }A starting point for the query results. Query cursors are returned in query result batches and can only be used to continue the same query.
| Property Value | |
|---|---|
| Type | Description |
ByteString | |