NewQueryPlan() public method

Returns the hosts to used for a query.
public NewQueryPlan ( string keyspace, IStatement statement ) : IEnumerable
keyspace string
statement IStatement
return IEnumerable
DseLoadBalancingPolicy Class Documentation
Example #1
0
 public void Should_Yield_Child_Hosts_When_No_Preferred_Host_Defined()
 {
     var lbp = new DseLoadBalancingPolicy(new TestLoadBalancingPolicy());
     var statement = new TargettedSimpleStatement("Q");
     var hosts = lbp.NewQueryPlan(null, statement);
     CollectionAssert.AreEqual(
         new[] { "101.0.0.0:9042", "102.0.0.0:9042" },
         hosts.Select(h => h.Address.ToString()));
 }
Example #2
0
 public void Should_Set_Distance_For_Preferred_Host_To_Local()
 {
     var lbp = new DseLoadBalancingPolicy(new TestLoadBalancingPolicy(HostDistance.Ignored));
     Assert.AreEqual(HostDistance.Ignored, lbp.Distance(new Host(new IPEndPoint(200L, 9042), ReconnectionPolicy)));
     var statement = new TargettedSimpleStatement("Q");
     // Use 201 as preferred
     statement.PreferredHost = new Host(new IPEndPoint(201L, 9042), ReconnectionPolicy);
     lbp.NewQueryPlan(null, statement);
     Assert.AreEqual(HostDistance.Local, lbp.Distance(statement.PreferredHost));
 }
Example #3
0
 public void Should_Yield_Preferred_Host_First()
 {
     var lbp = new DseLoadBalancingPolicy(new TestLoadBalancingPolicy());
     var statement = new TargettedSimpleStatement("Q");
     statement.PreferredHost = new Host(new IPEndPoint(201, 9042), ReconnectionPolicy);
     var hosts = lbp.NewQueryPlan(null, statement);
     CollectionAssert.AreEqual(
         new[] { "201.0.0.0:9042", "101.0.0.0:9042", "102.0.0.0:9042" }, 
         hosts.Select(h => h.Address.ToString()));
 }