SqlCacheDependencySection.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / Configuration / SqlCacheDependencySection.cs / 2 / SqlCacheDependencySection.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

namespace System.Web.Configuration { 
    using System; 
    using System.Xml;
    using System.Configuration; 
    using System.Collections.Specialized;
    using System.Collections;
    using System.Globalization;
    using System.IO; 
    using System.Text;
    using System.Diagnostics; 
    using System.Security.Permissions; 

    /*             
             
                
                 
             
*/
    [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] 
    public sealed class SqlCacheDependencySection : ConfigurationSection {
        private static readonly ConfigurationElementProperty s_elemProperty =
            new ConfigurationElementProperty(new CallbackValidator(typeof(SqlCacheDependencySection), Validate));
 
        private static ConfigurationPropertyCollection _properties;
        private static readonly ConfigurationProperty _propEnabled; 
        private static readonly ConfigurationProperty _propPollTime; 
        private static readonly ConfigurationProperty _propDatabases;
 
        static SqlCacheDependencySection() {
            // Property initialization
            _properties = new ConfigurationPropertyCollection();
 
            _propEnabled = new ConfigurationProperty("enabled",
                                            typeof(bool), 
                                            true, 
                                            ConfigurationPropertyOptions.None);
 
            _propPollTime = new ConfigurationProperty("pollTime",
                                            typeof(int),
                                            60000,
                                            ConfigurationPropertyOptions.None); 

            _propDatabases = new ConfigurationProperty("databases", 
                                            typeof(SqlCacheDependencyDatabaseCollection), 
                                            null,
                                            ConfigurationPropertyOptions.IsDefaultCollection); 

            _properties.Add(_propEnabled);
            _properties.Add(_propPollTime);
            _properties.Add(_propDatabases); 
        }
 
        public SqlCacheDependencySection() { 
        }
 
        protected override ConfigurationPropertyCollection Properties {
            get {
                return _properties;
            } 
        }
        protected override ConfigurationElementProperty ElementProperty { 
            get { 
                return s_elemProperty;
            } 
        }

        private static void Validate(object value) {
            if (value == null) { 
                throw new ArgumentNullException("sqlCacheDependency");
            } 
            Debug.Assert(value is SqlCacheDependencySection); 

            SqlCacheDependencySection elem = (SqlCacheDependencySection)value; 

            int defaultPollTime = elem.PollTime;

            if (defaultPollTime != 0 && defaultPollTime < 500) { 
                throw new ConfigurationErrorsException(
                    SR.GetString(SR.Invalid_sql_cache_dep_polltime), 
                    elem.ElementInformation.Properties["pollTime"].Source, 
                    elem.ElementInformation.Properties["pollTime"].LineNumber);
            } 
        }

        protected override void PostDeserialize() {
            int defaultPollTime = PollTime; 

            foreach (SqlCacheDependencyDatabase dbase in Databases) { 
                dbase.CheckDefaultPollTime(defaultPollTime); 
            }
        } 

        [ConfigurationProperty("enabled", DefaultValue = true)]
        public bool Enabled {
            get { 
                return (bool)base[_propEnabled];
            } 
            set { 
                base[_propEnabled] = value;
            } 
        }

        [ConfigurationProperty("pollTime", DefaultValue = 60000)]
        public int PollTime { 
            get {
                return (int)base[_propPollTime]; 
            } 
            set {
                base[_propPollTime] = value; 
            }
        }

        [ConfigurationProperty("databases")] 
        public SqlCacheDependencyDatabaseCollection Databases {
            get { 
                return (SqlCacheDependencyDatabaseCollection)base[_propDatabases]; 
            }
        } 
    }
}

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