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//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
namespace System.ServiceModel.Activities.Tracking.Configuration
{
using System.Configuration;
using System.Activities.Tracking;
using System.Collections.Generic;
using System.Runtime;
using System.Diagnostics.CodeAnalysis;
// Base class for all the workflow tracking query configuration elements
[Fx.Tag.XamlVisible(false)]
public abstract class TrackingQueryElement : TrackingConfigurationElement
{
ConfigurationPropertyCollection properties;
Guid? elementKey;
protected override ConfigurationPropertyCollection Properties
{
get
{
if (this.properties == null)
{
ConfigurationPropertyCollection properties = new ConfigurationPropertyCollection();
properties.Add(new ConfigurationProperty(TrackingConfigurationStrings.Annotations, typeof(System.ServiceModel.Activities.Tracking.Configuration.AnnotationElementCollection), null, null, null, System.Configuration.ConfigurationPropertyOptions.None));
this.properties = properties;
}
return this.properties;
}
}
[ConfigurationProperty(TrackingConfigurationStrings.Annotations)]
public AnnotationElementCollection Annotations
{
get
{
return (AnnotationElementCollection)base[TrackingConfigurationStrings.Annotations];
}
}
[SuppressMessage(FxCop.Category.Configuration, FxCop.Rule.ConfigurationPropertyAttributeRule,
Justification = "This property is defined by the base class to compute unique key.")]
public override object ElementKey
{
get
{
if (this.elementKey == null)
{
this.elementKey = Guid.NewGuid();
}
return this.elementKey;
}
}
internal TrackingQuery CreateTrackingQuery()
{
TrackingQuery query = NewTrackingQuery();
UpdateTrackingQuery(query);
return query;
}
// Override this method to create a query instance and set properties not inherited by derived classes
protected abstract TrackingQuery NewTrackingQuery();
// Override this method to set the properties that a derived class may inherit calling the base method
protected virtual void UpdateTrackingQuery(TrackingQuery trackingQuery)
{
foreach (AnnotationElement annotation in this.Annotations)
{
trackingQuery.QueryAnnotations.Add(new KeyValuePair<string, string>(annotation.Name, annotation.Value));
}
}
}
}
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