Method, classe (Microsoft.Office.Server.ApplicationRegistry.Administration)

Represents operations related to an entity that you can perform in the line-of-business (LOB) application.

Espace de noms : Microsoft.Office.Server.ApplicationRegistry.Administration
Assembly : Microsoft.SharePoint.Portal (dans microsoft.sharepoint.portal.dll)

Syntaxe

'Déclaration
<SharePointPermissionAttribute(SecurityAction.InheritanceDemand, ObjectModel:=True)> _
<SharePointPermissionAttribute(SecurityAction.Demand, ObjectModel:=True)> _
Public Class Method
    Inherits IndividuallySecurableMetadataObject
'Utilisation
Dim instance As Method

[SharePointPermissionAttribute(SecurityAction.InheritanceDemand, ObjectModel=true)] 
[SharePointPermissionAttribute(SecurityAction.Demand, ObjectModel=true)] 
public class Method : IndividuallySecurableMetadataObject

Remarques

Methods represent pointers to business logic in a business application. Examples of methods are "get a list of customers," "get the order with a specified ID," and "update the unit price of a product."

The metadata for a Method essentially describes a method signature; for example, the name of an SQL stored procedure, an SQL query, or a Web services method. The definitions for the method signatures live in the LOB application. The Method metadata object provides the information about that method so the Runtime object model can query the metadata repository for this information when a client wants to execute the method.

Methods contain Paramètre, MethodInstance, and FilterDescriptor.

You can reuse the same back-end application method for multiple method instances in the Business Data Catalog. For example, the AdventureWorks sample reuses the GetProducts method as both Finder and SpecificFinder. The GetCustomerByID method in the SampleWebService reuses it as a SpecificFinder for customer and as an Association method to get addresses.

Following are the properties that the Method object accepts for database systems.

Exemple

The following code example shows how to create a method, complete with MethodInstances, FilterDescriptors, DefaultValues, and TypeDescriptors for the ProductModel entity in the AdventureWorks2000 database.

Prerequisites

• Ensure a Shared Service Provider is already created.

• Create an LobSystem instance and set connection parameters as shown in Procédure : créer un objet LobSystem à l'aide du modèle objet Administration.

• Create the ProductModel entity as shown in Procédure : créer une entité à l'aide du modèle objet Administration

• Replace the constant value EnterYourSSPNameHere in the code with the name of your Shared Resource Provider.

Project References

Add the following Project References in your console application code project before running this sample:

• Microsoft.SharePoint

• Microsoft.SharePoint.Portal

• Microsoft.Office.Server

using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.Office.Server.ApplicationRegistry.Administration;
using Microsoft.Office.Server.ApplicationRegistry.Infrastructure;
using WSSAdmin = Microsoft.SharePoint.Administration;
using OSSAdmin = Microsoft.Office.Server.Administration;

namespace Microsoft.SDK.SharePointServer.Samples
{
    class GetStartedAndCreateSystem
    {
        const string yourSSPName ="EnterYourSSPNameHere";

        static void Main(string[] args)
        {
            SetupBDC();
            CreateFinderMethod();
            Console.WriteLine("Press any key to exit...");
            Console.Read();
        }
        static void SetupBDC()
        {
            SqlSessionProvider.Instance().SetSharedResourceProviderToUse(yourSSPName);
        }
        static void CreateFinderMethod()
        {

            LobSystemInstance mySysInstance = null;
            LobSystemInstanceCollection sysInsCollection = ApplicationRegistry.Instance.GetLobSystemInstancesLikeName("AdventureWorksSampleFromCode");
            foreach (LobSystemInstance sysInstance in sysInsCollection)
            {
                if (sysInstance.Name == "AdventureWorksSampleFromCode")
                {
                    mySysInstance = sysInstance;
                    break;
                }
            }
            EntityCollection entityColl = mySysInstance.LobSystem.Entities;
            foreach (Entity entity in entityColl)
            {
                if (entity.Name == "ProductModel")
                {
                    Method meth = entity.Methods.Create("GetProductModels", true, true);
                    meth.Properties.Add("RdbCommandText", "SELECT ProductModelID, Name, CatalogDescription FROM ProductModel WHERE Name LIKE @Name");
                    meth.Properties.Add("RdbCommandType", System.Data.CommandType.Text);
                    FilterDescriptor fd = meth.FilterDescriptors.Create("Name", true, "Microsoft.Office.Server.ApplicationRegistry.Runtime.WildcardFilter");
                    Parameter p1 = meth.Parameters.Create("@Name", true, Microsoft.Office.Server.ApplicationRegistry.MetadataModel.DirectionType.In, "Microsoft.Office.Server.ApplicationRegistry.Infrastructure.DotNetTypeReflector");
                    TypeDescriptor td1 = p1.CreateRootTypeDescriptor("Name", true, "System.String", null, fd, false);
                    Parameter p2 = meth.Parameters.Create("ProductModels", true, Microsoft.Office.Server.ApplicationRegistry.MetadataModel.DirectionType.Return, "Microsoft.Office.Server.ApplicationRegistry.Infrastructure.DotNetTypeReflector");
                    IList<Identifier> ids = new List<Identifier>(entity.Identifiers);
                    Identifier id = ids[0];
                    TypeDescriptor td2 = p2.CreateRootTypeDescriptor("ProductModelDataReader", true, "System.Data.IDataReader, System.Data, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089", null, null, true);
                    TypeDescriptor td21 = td2.ChildTypeDescriptors.Create("ProductModelDataRecord", true, "System.Data.IDataRecord, System.Data, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089", null, null, false);
                    TypeDescriptor td210 = td21.ChildTypeDescriptors.Create("ProductModelID", true, "System.Int32", id, null, false);
                    TypeDescriptor td211 = td21.ChildTypeDescriptors.Create("Name", true, "System.String", null, null, false);
                    TypeDescriptor td212 = td21.ChildTypeDescriptors.Create("CatalogDescription", true, "System.String", null, null, false);
                    MethodInstance methInst1 = meth.MethodInstances.Create("ProductModelFinder", true, td2, Microsoft.Office.Server.ApplicationRegistry.MetadataModel.MethodInstanceType.Finder);
                    MethodInstance methInst2 = meth.MethodInstances.Create("ProductModelSpecificFinder", true, td2, Microsoft.Office.Server.ApplicationRegistry.MetadataModel.MethodInstanceType.SpecificFinder);
                    IList<MethodInstance> methInstCollection = new List<MethodInstance>(entity.MethodInstances);
                    td1.SetDefaultValue(methInstCollection[0].Id, "%");
                    td1.SetDefaultValue(methInstCollection[1].Id, "%");
                    Console.WriteLine("Created the finder method successfully.");
                    break;
                }
            }
        }
    }
}

Hiérarchie d'héritage

System.Object
   Microsoft.Office.Server.ApplicationRegistry.Administration.MetadataObject
     Microsoft.Office.Server.ApplicationRegistry.Administration.AccessControlledMetadataObject
       Microsoft.Office.Server.ApplicationRegistry.Administration.IndividuallySecurableMetadataObject
        Microsoft.Office.Server.ApplicationRegistry.Administration.Method

Sécurité des threads

Les membres statiques publics de ce type (Shared en Visual Basic) sont sécurisés au niveau des threads. Il n'est pas garanti que les membres d'instance soient sécurisés au niveau des threads.

Voir aussi

Référence

Membres Method
Microsoft.Office.Server.ApplicationRegistry.Administration, espace de noms