CorrelationQuery.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / NetFx40 / System.ServiceModel.Activities / System / ServiceModel / CorrelationQuery.cs / 1305376 / CorrelationQuery.cs
                        
                        
                            //---------------------------------------------------------------- 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//---------------------------------------------------------------

namespace System.ServiceModel 
{
    using System.Collections.Generic; 
    using System.Collections.ObjectModel; 
    using System.ComponentModel;
    using System.Diagnostics.CodeAnalysis; 
    using System.Runtime;
    using System.ServiceModel.Activities;
    using System.ServiceModel.Channels;
    using System.ServiceModel.Dispatcher; 
    using SR2 = System.ServiceModel.Activities.SR;
 
    public class CorrelationQuery 
    {
        Collection selectAdditional; 

        public CorrelationQuery()
        {
        } 

        [SuppressMessage(FxCop.Category.Usage, FxCop.Rule.CollectionPropertiesShouldBeReadOnly, 
            Justification = "TODO 87762, remove the set")] 
        [SuppressMessage(FxCop.Category.Xaml, FxCop.Rule.PropertyExternalTypesMustBeKnown,
            Justification = "This property is XAML friendly, no need to add KnownXamlExternal")] 
        [DefaultValue(null)]
        public MessageQuerySet Select
        {
            get; 
            set;
        } 
 
        public Collection SelectAdditional
        { 
            get
            {
                if (this.selectAdditional == null)
                { 
                    this.selectAdditional = new QueryCollection();
                } 
                return this.selectAdditional; 
            }
        } 

        [SuppressMessage(FxCop.Category.Xaml, FxCop.Rule.PropertyExternalTypesMustBeKnown,
            Justification = "This property is XAML friendly, no need to add KnownXamlExternal")]
        [DefaultValue(null)] 
        public MessageFilter Where
        { 
            get; 
            set;
        } 

        internal bool IsDefaultContextQuery
        {
            get; 
            set;
        } 
 
        public override bool Equals(object other)
        { 
            if (object.ReferenceEquals(this, other))
            {
                return true;
            } 

            CorrelationQuery otherQuery = other as CorrelationQuery; 
            if (otherQuery == null) 
            {
                return false; 
            }

            if (this.Where == null)
            { 
                return otherQuery.Where == null;
            } 
 
            return this.Where.Equals(otherQuery.Where);
        } 

        public override int GetHashCode()
        {
            return (this.Where != null) ? this.Where.GetHashCode() : 0; 
        }
 
        internal static bool IsQueryCollectionSearchable(IEnumerable queries) 
        {
            foreach (CorrelationQuery query in queries) 
            {
                if (!(query.Where is CorrelationActionMessageFilter || query.Where is ActionMessageFilter))
                {
                    return false; 
                }
            } 
 
            return true;
        } 

        internal static CorrelationQuery FindCorrelationQueryForAction(IEnumerable queries, string action)
        {
            string localAction = action != null ? action : String.Empty; 
            foreach (CorrelationQuery query in queries)
            { 
                // if the action is wildcard, we have a match all 
                if (query.Where is CorrelationActionMessageFilter)
                { 
                    if (((CorrelationActionMessageFilter)query.Where).Action == localAction || localAction == MessageHeaders.WildcardAction)
                    {
                        return query;
                    } 
                }
                else if (query.Where is ActionMessageFilter) 
                { 
                    if (((ActionMessageFilter)query.Where).Actions.Contains(localAction) || localAction == MessageHeaders.WildcardAction)
                    { 
                        return query;
                    }
                }
            } 

            return null; 
        } 

        internal CorrelationQuery Clone() 
        {
            CorrelationQuery cloneQuery = new CorrelationQuery
            {
                Select = this.Select, 
                IsDefaultContextQuery = this.IsDefaultContextQuery,
                Where = this.Where, 
            }; 
            if (this.selectAdditional != null)
            { 
                foreach (MessageQuerySet messageQuerySet in this.selectAdditional)
                {
                    cloneQuery.SelectAdditional.Add(messageQuerySet);
                } 
            }
            return cloneQuery; 
        } 

        class QueryCollection : Collection 
        {
            public QueryCollection()
            {
            } 

            protected override void InsertItem(int index, MessageQuerySet item) 
            { 
                if (item == null)
                { 
                    throw FxTrace.Exception.ArgumentNull("item");
                }

                base.InsertItem(index, item); 
            }
 
            protected override void SetItem(int index, MessageQuerySet item) 
            {
                if (item == null) 
                {
                    throw FxTrace.Exception.ArgumentNull("item");
                }
 
                base.SetItem(index, item);
            } 
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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CorrelationQuery.cs source code in C# .NET

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