SetBuilder Class

아티클
12/15/2008

Provides the functionality to create immutable sets.

네임스페이스: Microsoft.AnalysisServices.AdomdServer
어셈블리: msmgdsrv (in msmgdsrv.dll)

구문

‘선언
<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

예

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();
}

스레드 보안

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.

플랫폼

개발 플랫폼

지원되는 플랫폼 목록은 SQL Server 2005 설치를 위한 하드웨어 및 소프트웨어 요구 사항을 참조하십시오.

대상 플랫폼