Workflow 试图让持久性参与者升级到WF4中的xamlx服务
我已经实施了工作流持久性参与者促销，正如Microsoft网站上所示：http://msdn.microsoft.com/en-us/library/ee364726%28VS.100%29.aspx 虽然一切看起来都很正常。我在查询时没有看到数据保存到数据库？我想我错过了一步，或者微软错过了什么 我正在使用工作流应用程序.xamlx服务，我已覆盖WorkflowServiceHost。这一切似乎都很好，所以我不确定问题出在哪里 所以我这里的问题是，有没有人有一个真正的工作示例来说明如何实现持久性参与者 我试过几种不同的方法Workflow 试图让持久性参与者升级到WF4中的xamlx服务,workflow,workflow-foundation-4,Workflow,Workflow Foundation 4,我已经实施了工作流持久性参与者促销，正如Microsoft网站上所示：http://msdn.microsoft.com/en-us/library/ee364726%28VS.100%29.aspx 虽然一切看起来都很正常。我在查询时没有看到数据保存到数据库？我想我错过了一步，或者微软错过了什么 我正在使用工作流应用程序.xamlx服务，我已覆盖WorkflowServiceHost。这一切似乎都很好，所以我不确定问题出在哪里 所以我这里的问题是，有没有人有一个真正的工作示例来说明如何实现持久
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public class ServiceHostFactory :WorkflowServiceHostFactory
{
private static readonly string m_connectionString =
"Data Source=localhost;Initial Catalog=WorkflowInstanceStore;Integrated Security=True";
protected override WorkflowServiceHost CreateWorkflowServiceHost(Activity activity, Uri[] baseAddresses)
{
return base.CreateWorkflowServiceHost(activity, baseAddresses);
}
protected override WorkflowServiceHost CreateWorkflowServiceHost(WorkflowService service, Uri[] baseAddresses)
{
WorkflowServiceHost host = base.CreateWorkflowServiceHost(service, baseAddresses);
host.DurableInstancingOptions.InstanceStore = SetupInstanceStore();
SqlWorkflowInstanceStoreBehavior sqlWorkflowInstanceStoreBehavior = new SqlWorkflowInstanceStoreBehavior(m_connectionString);
XNamespace xNS = XNamespace.Get("http://contoso.com/DocumentStatus");
List<XName> variantProperties = new List<XName>()
{
xNS.GetName("UserName"),
xNS.GetName("ApprovalStatus"),
xNS.GetName("DocumentId"),
xNS.GetName("LastModifiedTime")
};
sqlWorkflowInstanceStoreBehavior.Promote("DocumentStatus", variantProperties, null);
host.Description.Behaviors.Add(sqlWorkflowInstanceStoreBehavior);
//Add persistence extension here:
host.WorkflowExtensions.Add<DocumentStatusExtension>(()=>new DocumentStatusExtension());;
host.Description.Behaviors.Add(new ServiceMetadataBehavior() { HttpGetEnabled = true });
// Handle the UnknownMessageReceived event.
host.UnknownMessageReceived += delegate(object sender, UnknownMessageReceivedEventArgs e)
{
Console.WriteLine(string.Format(CultureInfo.InvariantCulture, "Unknow Message Recieved:{0}", e.Message));
};
return host;
}
private static SqlWorkflowInstanceStore SetupInstanceStore()
{
SqlWorkflowInstanceStore sqlWorkflowInstanceStore = new SqlWorkflowInstanceStore(m_connectionString)
{
InstanceCompletionAction = InstanceCompletionAction.DeleteAll,
InstanceLockedExceptionAction = InstanceLockedExceptionAction.BasicRetry,
HostLockRenewalPeriod = System.TimeSpan.Parse("00:00:05")
};
InstanceHandle handle = sqlWorkflowInstanceStore.CreateInstanceHandle();
//InstanceHandle handle = sqlWorkflowInstanceStore.CreateInstanceHandle();
//InstanceView view = sqlWorkflowInstanceStore.Execute(handle, new CreateWorkflowOwnerCommand(), TimeSpan.FromSeconds(30));
//handle.Free();
//sqlWorkflowInstanceStore.DefaultInstanceOwner = view.InstanceOwner;
return sqlWorkflowInstanceStore;
}
公共类ServiceHostFactory:WorkflowServiceHostFactory
{
私有静态只读字符串m_connectionString=
“数据源=本地主机；初始目录=WorkflowInstanceStore；集成安全性=True”；
受保护的覆盖WorkflowServiceHost CreateWorkflowServiceHost（活动活动，Uri[]基本地址）
{
返回base.CreateWorkflowServiceHost（活动，基本地址）；
}
受保护的覆盖WorkflowServiceHost CreateWorkflowServiceHost（WorkflowService服务，Uri[]基本地址）
{
WorkflowServiceHost主机=base.CreateWorkflowServiceHost（服务，基本地址）；
host.durableInstanceStore=SetupInstanceStore（）；
SqlWorkflowInstanceStoreBehavior SqlWorkflowInstanceStoreBehavior=新的SqlWorkflowInstanceStoreBehavior（m_connectionString）；
XNamespace xNS=XNamespace.Get（“http://contoso.com/DocumentStatus");
列表变量属性=新列表（）
{
xNS.GetName（“用户名”），
xNS.GetName（“ApprovalStatus”），
xNS.GetName（“DocumentId”），
xNS.GetName（“LastModifiedTime”）
};
sqlWorkflowInstanceStoreBehavior.Promote（“DocumentStatus”，variantProperties，null）；
host.Description.Behaviors.Add（sqlWorkflowInstanceStoreBehavior）；
//在此处添加持久性扩展：
host.WorkflowExtensions.Add（（）=>newdocumentstatusextension（））；；
host.Description.Behaviors.Add（新ServiceMetadataBehavior（）{HttpGetEnabled=true}）；
//处理未知消息接收事件。
host.UnknownMessageReceived+=委托（对象发送方，UnknownMessageReceivedEventArgs e）
{
WriteLine（string.Format（CultureInfo.InvariantCulture，“收到的未知消息：{0}”，e.Message））；
};
返回主机；
}
私有静态SqlWorkflowInstanceStore设置InstanceStore（）
{
SqlWorkflowInstanceStore SqlWorkflowInstanceStore=新SqlWorkflowInstanceStore（m_connectionString）
{
InstanceCompletionAction=InstanceCompletionAction.DeleteAll，
InstanceLockedExceptionAction=InstanceLockedExceptionAction.BasicRetry，
HostLockRenewalPeriod=System.TimeSpan.Parse（“00:00:05”）
};
InstanceHandle=sqlWorkflowInstanceStore.CreateInstanceHandle（）；
//InstanceHandle=sqlWorkflowInstanceStore.CreateInstanceHandle（）；
//InstanceView视图=sqlWorkflowInstanceStore.Execute（句柄，新建CreateWorkflowOwnerCommand（），TimeSpan.FromSeconds（30））；
//handle.Free（）；
//sqlWorkflowInstanceStore.DefaultInstanceOwner=view.InstanceOwner；
返回sqlWorkflowInstanceStore；
}
public string DocumentId;
public string ApprovalStatus;
public string UserName;
public DateTime LastUpdateTime;
private XNamespace xNS = XNamespace.Get("http://contoso.com/");
protected override void CollectValues(out IDictionary<XName, object> readWriteValues, out IDictionary<XName, object> writeOnlyValues)
{
readWriteValues = new Dictionary<XName, object>();
readWriteValues.Add(xNS.GetName("UserName"), this.UserName);
readWriteValues.Add(xNS.GetName("ApprovalStatus"), this.ApprovalStatus);
readWriteValues.Add(xNS.GetName("DocumentId"), this.DocumentId);
readWriteValues.Add(xNS.GetName("LastModifiedTime"), this.LastUpdateTime);
writeOnlyValues = null;
}
protected override IDictionary<XName, object> MapValues(IDictionary<XName, object> readWriteValues, IDictionary<XName, object> writeOnlyValues)
{
return base.MapValues(readWriteValues, writeOnlyValues);
}
public sealed class UpdateExtension : CodeActivity
{
// Define an activity input argument of type string
public InArgument<string> Text { get; set; }
// If your activity returns a value, derive from CodeActivity<TResult>
// and return the value from the Execute method.
protected override void Execute(CodeActivityContext context)
{
// Obtain the runtime value of the Text input argument
context.GetExtension<DocumentStatusExtension>().DocumentId = Guid.NewGuid().ToString();
context.GetExtension<DocumentStatusExtension>().UserName = "John Smith";
context.GetExtension<DocumentStatusExtension>().ApprovalStatus = "Approved";
context.GetExtension<DocumentStatusExtension>().LastUpdateTime = DateTime.Now;
}
}
公共字符串DocumentId；
公共字符串批准状态；
公共字符串用户名；
公共日期时间LastUpdateTime；
私有XNamespace xNS=XNamespace.Get（“http://contoso.com/");
受保护的重写无效集合值（out IDictionary readWriteValues，out IDictionary writeOnlyValues）
{
readWriteValues=新字典（）；
readWriteValues.Add（xNS.GetName（“用户名”）、this.UserName）；
readWriteValues.Add（xNS.GetName（“ApprovalStatus”）、this.ApprovalStatus）；
readWriteValues.Add（xNS.GetName（“DocumentId”）、this.DocumentId）；
readWriteValues.Add（xNS.GetName（“LastModifiedTime”）、this.LastUpdateTime）；
writeOnlyValues=null；
}
受保护的重写IDictionary映射值（IDictionary readWriteValues、IDictionary writeOnlyValues）
{
返回base.MapValues（readWriteValues，writeOnlyValues）；
}
public string DocumentId;
public string ApprovalStatus;
public string UserName;
public DateTime LastUpdateTime;
private XNamespace xNS = XNamespace.Get("http://contoso.com/");
protected override void CollectValues(out IDictionary<XName, object> readWriteValues, out IDictionary<XName, object> writeOnlyValues)
{
readWriteValues = new Dictionary<XName, object>();
readWriteValues.Add(xNS.GetName("UserName"), this.UserName);
readWriteValues.Add(xNS.GetName("ApprovalStatus"), this.ApprovalStatus);
readWriteValues.Add(xNS.GetName("DocumentId"), this.DocumentId);
readWriteValues.Add(xNS.GetName("LastModifiedTime"), this.LastUpdateTime);
writeOnlyValues = null;
}
protected override IDictionary<XName, object> MapValues(IDictionary<XName, object> readWriteValues, IDictionary<XName, object> writeOnlyValues)
{
return base.MapValues(readWriteValues, writeOnlyValues);
}
public sealed class UpdateExtension : CodeActivity
{
// Define an activity input argument of type string
public InArgument<string> Text { get; set; }
// If your activity returns a value, derive from CodeActivity<TResult>
// and return the value from the Execute method.
protected override void Execute(CodeActivityContext context)
{
// Obtain the runtime value of the Text input argument
context.GetExtension<DocumentStatusExtension>().DocumentId = Guid.NewGuid().ToString();
context.GetExtension<DocumentStatusExtension>().UserName = "John Smith";
context.GetExtension<DocumentStatusExtension>().ApprovalStatus = "Approved";
context.GetExtension<DocumentStatusExtension>().LastUpdateTime = DateTime.Now;
}
}
公共密封类更新扩展：CodeActivity
{
//定义字符串类型的活动输入参数
公共非语法文本{get；set；}
//如果活动返回值，则从CodeActivity派生
//并从Execute方法返回值。
受保护的覆盖无效执行（CodeActivityContext上下文）
{
//获取文本输入参数的运行时值
context.GetExtension（）.DocumentId=Guid.NewGuid（）.ToString（）；
context.GetExtension（）.UserName=“John Smith”；
context.GetExtension（）.ApprovalStatus=“已批准”；
context.GetExtension（）.LastUpdateTime=DateTime.Now；
}
}