DataStax Enterprise C# Driver

DataStax Enterprise C# Driver

Table(TEntity) Class

Table(TEntity) Constructor

Table(TEntity) Properties

Table(TEntity) Methods

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TableTEntity Class

A Linq IQueryProvider that represents a table in Cassandra

Inheritance Hierarchy

SystemObject
  DseStatement
    Dse.Data.LinqCqlQueryBaseTEntity
      Dse.Data.LinqCqlQueryTEntity
        Dse.Data.LinqTableTEntity

Namespace: Dse.Data.Linq
Assembly: Dse (in Dse.dll) Version: 2.9.0

Syntax

C#

public class Table<TEntity> : CqlQuery<TEntity>, 
	ITable, IQueryProvider

Type Parameters

TEntity

The TableTEntity type exposes the following members.

Constructors

	Name	Description
	TableTEntity(ISession)	Creates a new instance of the Linq IQueryProvider that represents a table in Cassandra using Global configuration.
	TableTEntity(ISession, MappingConfiguration)	Creates a new instance of the Linq IQueryProvider that represents a table in Cassandra using the mapping configuration provided. Fluent configuration or attributes can be used to define mapping information.
	TableTEntity(ISession, MappingConfiguration, String)	Creates a new instance of the Linq IQueryProvider that represents a table in Cassandra using the mapping configuration provided. Use this constructor if you want to use a different table name than the one defined in the mapping configuration. Fluent configuration or attributes can be used to define mapping information.
	TableTEntity(ISession, MappingConfiguration, String, String)	Creates a new instance of the Linq IQueryProvider that represents a table in Cassandra using the mapping configuration provided. Use this constructor if you want to use a different table and keyspace names than the ones defined in the mapping configuration. Fluent configuration or attributes can be used to define mapping information.

Properties

	Name	Description
	KeyspaceName	Gets the name of the keyspace used. If null, it uses the active session keyspace.
	Name	Gets the name of the Table in Cassandra

Methods

	Name	Description
	Create
	CreateIfNotExists
	CreateQueryTElement	Creates a CqlQueryTEntity
	GetEntityType
	GetSession
	GetTableType
	Insert(TEntity)	Returns a new CqlInsertTEntity command. Use Execute method to execute the query.
	Insert(TEntity, Boolean)	Returns a new CqlInsertTEntity command. Use Execute method to execute the query.

Extension Methods

	Name	Description
	AllowFilteringTEntity	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.)
	CountTEntity	Returns the number of rows matching the query. To execute this CqlScalar use Execute() method. (Defined by CqlQueryExtensions.)
	DeleteTEntity	Returns a representation of a DELETE cql statement (Defined by CqlQueryExtensions.)
	DeleteIfTEntity	Returns a representation of a DELETE ... IF ... cql statement, for Lightweight Transactions support (Defined by CqlQueryExtensions.)
	FirstTEntity	Overloaded. Returns a CqlQuery which after execution will return the first element in a sequence. To execute this CqlQuery use Execute() method. (Defined by CqlQueryExtensions.)
	FirstTSource(ExpressionFuncTSource, Boolean)	Overloaded. Returns a CqlQuery which after execution returns the first element in a sequence that satisfies a specified condition. To execute this CqlQuery use Execute() method. (Defined by CqlQueryExtensions.)
	FirstOrDefaultTEntity	Overloaded. 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.)
	FirstOrDefaultTSource(ExpressionFuncTSource, Boolean)	Overloaded. Returns a CqlQuery which after execution will return the first element of the sequence that satisfies a condition or a default value if no such element is found. To execute this CqlQuery use Execute() method. (Defined by CqlQueryExtensions.)
	OrderByTEntity, TKey	Sorts the elements, which are returned from CqlQuery, in ascending order according to a key. (Defined by CqlQueryExtensions.)
	OrderByDescendingTEntity, TKey	Sorts the elements, which are returned from CqlQuery, in ascending order according to a key. (Defined by CqlQueryExtensions.)
	SelectTEntity, TResult	Projects each element of a sequence into a new form. (Defined by CqlQueryExtensions.)
	TakeTEntity	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.)
	ThenByTEntity, TKey	Sorts the elements, which are returned from CqlQuery, in ascending order according to a key. (Defined by CqlQueryExtensions.)
	ThenByDescendingTEntity, TKey	Sorts the elements, which are returned from CqlQuery, in descending order according to a key. (Defined by CqlQueryExtensions.)
	UpdateTEntity	Returns a representation of a UPDATE cql statement (Defined by CqlQueryExtensions.)
	UpdateIfTEntity	Returns a representation of a UPDATE ... IF ... cql statement, for Lightweight Transactions support (Defined by CqlQueryExtensions.)
	UpdateIfExistsTEntity	Returns a representation of a UPDATE ... IF EXISTS cql statement, for Lightweight Transactions support. (Defined by CqlQueryExtensions.)
	WhereTEntity	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.)

See Also

Reference

Dse.Data.Linq Namespace

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