SendMessageChannelCache 构造函数

public:
 SendMessageChannelCache();

public SendMessageChannelCache();

Public Sub New ()

public:
 SendMessageChannelCache(System::ServiceModel::Activities::ChannelCacheSettings ^ factorySettings, System::ServiceModel::Activities::ChannelCacheSettings ^ channelSettings);

public SendMessageChannelCache(System.ServiceModel.Activities.ChannelCacheSettings factorySettings, System.ServiceModel.Activities.ChannelCacheSettings channelSettings);

new System.ServiceModel.Activities.SendMessageChannelCache : System.ServiceModel.Activities.ChannelCacheSettings * System.ServiceModel.Activities.ChannelCacheSettings -> System.ServiceModel.Activities.SendMessageChannelCache

Public Sub New (factorySettings As ChannelCacheSettings, channelSettings As ChannelCacheSettings)

参数

示例

以下示例演示如何使用 SendMessageChannelCache 类在单个应用域中的两个工作流应用程序之间共享通道缓存。

//sharing a channel cache between two workflow applications in a single app-domain.
sharedChannelCache = new SendMessageChannelCache(new ChannelCacheSettings { MaxItemsInCache = 5 }, new ChannelCacheSettings { MaxItemsInCache = 5 });

WorkflowApplication workflowApp1 = new WorkflowApplication(workflow);
workflowApp1.Completed = new Action<WorkflowApplicationCompletedEventArgs>(OnCompleted);
workflowApp1.Extensions.Add(sharedChannelCache);

WorkflowApplication workflowApp2 = new WorkflowApplication(workflow);
workflowApp2.Completed = new Action<WorkflowApplicationCompletedEventArgs>(OnCompleted);
workflowApp2.Extensions.Add(sharedChannelCache);

//disabling the channel cache so that channels are closed after being used.
SendMessageChannelCache disabledChannelCache = new SendMessageChannelCache(new ChannelCacheSettings { MaxItemsInCache = 0 }, new ChannelCacheSettings { MaxItemsInCache = 0 });

WorkflowApplication workflowApp3 = new WorkflowApplication(workflow);
workflowApp3.Completed = new Action<WorkflowApplicationCompletedEventArgs>(OnCompleted);
workflowApp3.Extensions.Add(disabledChannelCache);

注解

有关通道工厂的详细信息，请参阅 ChannelFactory 和 ChannelFactory<TChannel>。

可以选择仅使用通道工厂缓存，并通过将参数传递给 channelSettings 初始化为 ChannelCacheSettings 值为 0 的实例 MaxItemsInCache 的此构造函数来禁用通道缓存。 若要完全禁用通道工厂缓存和通道缓存的缓存，请将 factorySettings 参数传递给初始化 ChannelCacheSettings 为值为 0 的实例 MaxItemsInCache 的此构造函数。 请注意，如果禁用通道工厂缓存，则无法打开通道缓存。

public:
 SendMessageChannelCache(System::ServiceModel::Activities::ChannelCacheSettings ^ factorySettings, System::ServiceModel::Activities::ChannelCacheSettings ^ channelSettings, bool allowUnsafeCaching);

public SendMessageChannelCache(System.ServiceModel.Activities.ChannelCacheSettings factorySettings, System.ServiceModel.Activities.ChannelCacheSettings channelSettings, bool allowUnsafeCaching);

new System.ServiceModel.Activities.SendMessageChannelCache : System.ServiceModel.Activities.ChannelCacheSettings * System.ServiceModel.Activities.ChannelCacheSettings * bool -> System.ServiceModel.Activities.SendMessageChannelCache

Public Sub New (factorySettings As ChannelCacheSettings, channelSettings As ChannelCacheSettings, allowUnsafeCaching As Boolean)

参数

注解

默认情况下，缓存仅适用于 Send 不使用配置中定义的终结点的活动。 但是，如果要在此例中打开缓存，请调用此构造函数， allowUnsafeCaching 并将参数设置为 true. 接下来，将此类的新实例作为扩展添加到工作流服务主机或工作流实例。

有关通道工厂的详细信息，请参阅 ChannelFactory 和 ChannelFactory<TChannel>。