CqlQueryTEntity Class |
Namespace: Cassandra.Data.Linq
public class CqlQuery<TEntity> : CqlQueryBase<TEntity>, IQueryable<TEntity>, IEnumerable<TEntity>, IEnumerable, IQueryable, IOrderedQueryable
The CqlQueryTEntity type exposes the following members.
Name | Description | |
---|---|---|
BeginExecute | (Inherited from CqlQueryBaseTEntity.) | |
DisableTracing |
Disable tracing for the statement.
(Inherited from Statement.) | |
EnableTracing |
Enables tracing for the statement
(Inherited from Statement.) | |
EndExecute | (Inherited from CqlQueryBaseTEntity.) | |
Equals | Determines whether the specified object is equal to the current object. (Inherited from Object.) | |
Execute |
Evaluates the Linq query, executes the cql statement and adapts the results.
(Inherited from CqlQueryBaseTEntity.) | |
ExecuteAsync |
Evaluates the Linq query, executes asynchronously the cql statement and adapts the results.
(Inherited from CqlQueryBaseTEntity.) | |
ExecutePaged |
Executes the query and returns a page of results
| |
ExecutePagedAsync |
Asynchronously executes the query and returns a task of a page of results
| |
GetEnumerator | ||
GetHashCode | Serves as the default hash function. (Inherited from Object.) | |
GetTable | (Inherited from CqlQueryBaseTEntity.) | |
GetType | Gets the Type of the current instance. (Inherited from Object.) | |
SetAutoPage |
Sets the paging behavior.
When set to true (default), the RowSet returned when executing this IStatement will automatically fetch the following result pages.
When false, the RowSet returned will only contain the rows contained in the result page and will not fetch additional pages.
(Inherited from Statement.) | |
SetConsistencyLevel | ||
SetIdempotence |
Sets whether this statement is idempotent.
(Inherited from Statement.)Idempotence of the statement plays a role in ISpeculativeExecutionPolicy. If a statement is not idempotent, the driver will not schedule speculative executions for it. | |
SetOutgoingPayload |
Sets a custom outgoing payload for this statement.
Each time this statement is executed, this payload will be included in the request.
Once it is set using this method, the payload should not be modified.
(Inherited from Statement.) | |
SetPageSize |
Sets the page size for this query.
The page size controls how much resulting rows will be retrieved
simultaneously (the goal being to avoid loading too much results
in memory for queries yielding large results). Please note that
while value as low as 1 can be used, it is highly discouraged to
use such a low value in practice as it will yield very poor
performance. If in doubt, leaving the default is probably a good
idea.
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SetPagingState |
Sets the paging state, a token representing the current page state of query used to continue paging by retrieving the following result page.
Setting the paging state will disable automatic paging.
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SetReadTimeoutMillis |
Overrides the default per-host read timeout ReadTimeoutMillis for this statement.
(Inherited from Statement.) | |
SetRetryPolicy |
Sets the retry policy to use for this query. (Inherited from Statement.)The default retry policy, if this method is not called, is the one returned by Policies#RetryPolicy in the cluster configuration. This method is thus only useful in case you want to punctually override the default policy for this request. | |
SetSerialConsistencyLevel | ||
SetTimestamp |
Sets the timestamp associated with this statement execution.
If provided, this will replace the server side assigned
timestamp as default timestamp. Note that a timestamp in the query itself will still override this timestamp.
(Inherited from Statement.) | |
ToString |
Generates and returns cql query for this instance
(Overrides ObjectToString.) |
Name | Description | |
---|---|---|
AllowFilteringTSource |
The ALLOW FILTERING option allows to explicitly allow queries that require filtering.
Please note that a query using ALLOW FILTERING may thus have unpredictable performance (for the definition above), i.e. even a query that selects a handful of records may exhibit performance that depends on the total amount of data stored in the cluster.
(Defined by CqlQueryExtensions.) | |
CountTSource |
Returns the number of rows matching the query.
To execute this CqlScalar use Execute() method.
(Defined by CqlQueryExtensions.) | |
DeleteTSource |
Returns a representation of a DELETE cql statement
(Defined by CqlQueryExtensions.) | |
DeleteIfTSource |
Returns a representation of a DELETE ... IF ... cql statement, for Lightweight Transactions support
(Defined by CqlQueryExtensions.) | |
FirstTSource |
Returns a CqlQuery which after execution will return the first element in a sequence.
To execute this CqlQuery use Execute() method.
(Defined by CqlQueryExtensions.) | |
FirstOrDefaultTSource |
Returns a CqlQuery which after execution will return the first element of a sequence,
or a default value if the sequence contains no elements.
To execute this CqlQuery use Execute() method.
(Defined by CqlQueryExtensions.) | |
OrderByTSource, TKey |
Sorts the elements, which are returned from CqlQuery, in ascending order according to a key.
(Defined by CqlQueryExtensions.) | |
OrderByDescendingTSource, TKey |
Sorts the elements, which are returned from CqlQuery, in ascending order according to a key.
(Defined by CqlQueryExtensions.) | |
SelectTSource, TResult |
Projects each element of a sequence into a new form.
(Defined by CqlQueryExtensions.) | |
TakeTSource |
Returns a CqlQuery which after execution will return IEnumerable<TSource>
with specified number of contiguous elements from the start of a sequence.
To execute this CqlQuery use Execute() method.
(Defined by CqlQueryExtensions.) | |
ThenByTSource, TKey |
Sorts the elements, which are returned from CqlQuery, in ascending order according to a key.
(Defined by CqlQueryExtensions.) | |
ThenByDescendingTSource, TKey |
Sorts the elements, which are returned from CqlQuery, in descending order according to a key.
(Defined by CqlQueryExtensions.) | |
UpdateTSource |
Returns a representation of a UPDATE cql statement
(Defined by CqlQueryExtensions.) | |
UpdateIfTSource |
Returns a representation of a UPDATE ... IF ... cql statement, for Lightweight Transactions support
(Defined by CqlQueryExtensions.) | |
WhereTSource |
Returns a CqlQuery which after execution returns filtered sequence of values based on a predicate.
To execute this CqlQuery use Execute() method.
(Defined by CqlQueryExtensions.) |
Name | Description | |
---|---|---|
AutoPage |
Determines if the RowSet returned when executing this IStatement will automatically fetch the following result pages. Defaults to true.
(Inherited from Statement.) | |
ConsistencyLevel |
Gets the consistency level for this query.
(Inherited from Statement.) | |
ElementType | (Inherited from CqlQueryBaseTEntity.) | |
Expression | (Inherited from CqlQueryBaseTEntity.) | |
IsIdempotent |
Determines if this statement is idempotent, i.e. whether it can be applied multiple times without
changing the result beyond the initial application.
(Inherited from Statement.)Idempotence of the statement plays a role in ISpeculativeExecutionPolicy. If a statement is not idempotent, the driver will not schedule speculative executions for it. When the property is null, the driver will use the default value from the GetDefaultIdempotence. | |
IsTracing |
Gets whether tracing is enabled for this query or not.
(Inherited from Statement.) | |
OutgoingPayload |
Gets custom payload for that will be included when executing this Statement.
(Inherited from Statement.) | |
PageSize |
Gets query's page size.
(Inherited from Statement.) | |
PagingState | (Inherited from Statement.) | |
Provider |
IQueryable.Provider implementation
| |
QueryTrace | (Inherited from CqlQueryBaseTEntity.) | |
QueryValues | (Inherited from Statement.) | |
ReadTimeoutMillis |
Gets the per-host read timeout for this statement.
(Inherited from Statement.)When the value is 0 or lower, the default value from the socket options will be used. | |
RetryPolicy |
Gets the retry policy sets for this query, if any.
(Inherited from Statement.) | |
RoutingKey | (Inherited from CqlQueryBaseTEntity.) | |
SerialConsistencyLevel |
Gets the serial consistency level for this query.
(Inherited from Statement.) | |
SkipMetadata | (Inherited from Statement.) | |
Timestamp |
Gets the timestamp associated with this statement execution.
(Inherited from Statement.) |