SetBuilder 類別

Provides the functionality to create immutable sets.

繼承階層

System. . :: . .Object
  Microsoft.AnalysisServices.AdomdServer..::..SetBuilder

命名空間：  Microsoft.AnalysisServices.AdomdServer
組件：  msmgdsrv (在 msmgdsrv.dll 中)

語法

'宣告
Public NotInheritable Class SetBuilder _
    Implements IDisposable
'用途
Dim instance As SetBuilder

public sealed class SetBuilder : IDisposable

public ref class SetBuilder sealed : IDisposable

[<SealedAttribute>]
type SetBuilder =  
    class
        interface IDisposable
    end

public final class SetBuilder implements IDisposable

SetBuilder 型別公開下列成員。

建構函式

	名稱	說明
	SetBuilder() () () ()	Initializes a new instance of the SetBuilder class.
	SetBuilder(Tuple)	Initializes a new instance of the SetBuilder class, with a given Tuple.

上層

屬性

	名稱	說明
	Count	Gets the number of Tuple objects in the set.
	Item	Gets the specified Tuple object.

上層

方法

	名稱	說明
	{dtor}	Releases all resources used by the SetBuilder.
	Add	Adds a Tuple to the set.
	Dispose	Releases all resources used by the SetBuilder.
	Equals	(繼承自 Object。)
	Finalize	(繼承自 Object。)
	GetHashCode	(繼承自 Object。)
	GetType	(繼承自 Object。)
	MemberwiseClone	(繼承自 Object。)
	ToSet	Gets a Set based on the specified Tuple objects.
	ToString	(繼承自 Object。)

上層

範例

The following example takes a set and a return count, and randomly retrieves tuples from the set, returning a final subset.

public Set RandomSample(Set set, int returnCount)
{
    //Return the original set if there are fewer tuples
    //in the set than the number requested.
    if (set.Tuples.Count <= returnCount)
        return set;

    System.Random r = new System.Random();
    SetBuilder returnSet = new SetBuilder();

    //Retrieve random tuples until the return set is filled.
    int i = set.Tuples.Count;
    foreach (Tuple t in set.Tuples)
    {
        if (r.Next(i) < returnCount)
        {
            returnCount--;
            returnSet.Add(t);
        }
        i--;
        //Stop the loop if we have enough tuples.
        if (returnCount == 0)
            break;
    }
    return returnSet.ToSet();
}

執行緒安全性

這個型別的任何公用 static (在 Visual Basic 中為 Shared) 成員都是執行緒安全的。並不是所有的執行個體成員都保證可以用於所有的執行緒。

請參閱

參考

Microsoft.AnalysisServices.AdomdServer 命名空間