Class Policies

Represents the policies configured for a ICluster instance.

Inheritance

System.Object

Policies

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: Cassandra

Assembly: Cassandra.dll

Syntax

public class Policies

Constructors

Policies()

Declaration

public Policies()

Policies(ILoadBalancingPolicy, IReconnectionPolicy, IRetryPolicy)

Creates a new Policies object using the provided policies.

Declaration

public Policies(ILoadBalancingPolicy loadBalancingPolicy, IReconnectionPolicy reconnectionPolicy, IRetryPolicy retryPolicy)

Parameters

Type	Name	Description
ILoadBalancingPolicy	loadBalancingPolicy	the load balancing policy to use.
IReconnectionPolicy	reconnectionPolicy	the reconnection policy to use.
IRetryPolicy	retryPolicy	the retry policy to use.

Properties

DefaultLoadBalancingPolicy

DEPRECATED: Use NewDefaultLoadBalancingPolicy(String) instead. Providing the local datacenter will be mandatory in the next major version of the driver.

The default load balancing policy.

The default load balancing policy is DefaultLoadBalancingPolicy as a wrapper around TokenAwarePolicy with DCAwareRoundRobinPolicy as child policy.

Declaration

public static ILoadBalancingPolicy DefaultLoadBalancingPolicy { get; }

Property Value

Type	Description
ILoadBalancingPolicy

DefaultPolicies

Gets a new instance Policies containing default policies of the driver.

Declaration

public static Policies DefaultPolicies { get; }

Property Value

Type	Description
Policies

DefaultReconnectionPolicy

The default reconnection policy.

The default reconnection policy is an

ExponentialReconnectionPolicy where the base delay is 1 second and the max delay is 10 minutes;

Declaration

public static IReconnectionPolicy DefaultReconnectionPolicy { get; }

Property Value

Type	Description
IReconnectionPolicy

DefaultRetryPolicy

The default retry policy.The default retry policy is DefaultRetryPolicy

Declaration

public static IRetryPolicy DefaultRetryPolicy { get; }

Property Value

Type	Description
IRetryPolicy

DefaultSpeculativeExecutionPolicy

The ISpeculativeExecutionPolicy to be used by default.

The default is NoSpeculativeExecutionPolicy.

Declaration

public static ISpeculativeExecutionPolicy DefaultSpeculativeExecutionPolicy { get; }

Property Value

Type	Description
ISpeculativeExecutionPolicy

DefaultTimestampGenerator

Gets a new instance of the default ITimestampGenerator policy.

The default ITimestampGenerator is AtomicMonotonicTimestampGenerator

Declaration

public static ITimestampGenerator DefaultTimestampGenerator { get; }

Property Value

Type	Description
ITimestampGenerator

LoadBalancingPolicy

Gets the load balancing policy in use.

The load balancing policy defines how Cassandra hosts are picked for queries.

Declaration

public ILoadBalancingPolicy LoadBalancingPolicy { get; }

Property Value

Type	Description
ILoadBalancingPolicy

ReconnectionPolicy

Gets the reconnection policy in use.

The reconnection policy defines how often the driver tries to reconnect to a dead node.

Declaration

public IReconnectionPolicy ReconnectionPolicy { get; }

Property Value

Type	Description
IReconnectionPolicy

RetryPolicy

Gets the retry policy in use.

The retry policy defines in which conditions a query should be automatically retries by the driver.

Declaration

public IRetryPolicy RetryPolicy { get; }

Property Value

Type	Description
IRetryPolicy

SpeculativeExecutionPolicy

Gets the SpeculativeExecutionPolicy in use.

Declaration

public ISpeculativeExecutionPolicy SpeculativeExecutionPolicy { get; }

Property Value

Type	Description
ISpeculativeExecutionPolicy

TimestampGenerator

Gets the ITimestampGenerator instance in use.

Declaration

public ITimestampGenerator TimestampGenerator { get; }

Property Value

Type	Description
ITimestampGenerator

Methods

NewDefaultLoadBalancingPolicy(String)

Creates a new instance of the default load balancing policy with the provided local datacenter. This is equivalent to:

new DefaultLoadBalancingPolicy(new TokenAwarePolicy(new DCAwareRoundRobinPolicy(localDc)))

Declaration

public static ILoadBalancingPolicy NewDefaultLoadBalancingPolicy(string localDc)

Parameters

Type	Name	Description
System.String	localDc

Returns

Type	Description
ILoadBalancingPolicy