SetBuilder Class
Provides the functionality to create immutable sets.
命名空間: Microsoft.AnalysisServices.AdomdServer
組件: msmgdsrv (in msmgdsrv.dll)
語法
'宣告
<DefaultMemberAttribute("Item")> _
Public NotInheritable Class SetBuilder
Implements IDisposable
[DefaultMemberAttribute("Item")]
public sealed class SetBuilder : IDisposable
[DefaultMemberAttribute(L"Item")]
public ref class SetBuilder sealed : IDisposable
/** @attribute DefaultMemberAttribute("Item") */
public final class SetBuilder implements IDisposable
DefaultMemberAttribute("Item")
public final class SetBuilder implements IDisposable
Inheritance Hierarchy
System.Object
Microsoft.AnalysisServices.AdomdServer.SetBuilder
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
Any public static (Shared in Microsoft Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
平台
開發平台
如需受支援的平台清單,請參閱<安裝 SQL Server 2005 的硬體和軟體需求>。
目標平台
如需受支援的平台清單,請參閱<安裝 SQL Server 2005 的硬體和軟體需求>。
請參閱
參考
SetBuilder Members
Microsoft.AnalysisServices.AdomdServer Namespace