EdmProperty.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / ndp / fx / src / DataEntity / System / Data / Metadata / Edm / EdmProperty.cs / 3 / EdmProperty.cs
                        

                        
                            //---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner  [....], [....]
//--------------------------------------------------------------------- 
 
using System.Data.Common;
using System.Threading; 

namespace System.Data.Metadata.Edm
{
    ///  
    /// Represent the edm property class
    ///  
    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Edm")] 
    public sealed class EdmProperty : EdmMember
    { 
        #region Constructors
        /// 
        /// Initializes a new instance of the property class
        ///  
        /// name of the property
        /// TypeUsage object containing the property type and its facets 
        /// Thrown if name or typeUsage arguments are null 
        /// Thrown if name argument is empty string
        internal EdmProperty(string name, TypeUsage typeUsage) 
            : base(name, typeUsage)
        {
            EntityUtil.CheckStringArgument(name, "name");
            EntityUtil.GenericCheckArgumentNull(typeUsage, "typeUsage"); 
        }
        #endregion 
 
        #region Fields
        /// Store the handle, allowing the PropertyInfo/MethodInfo/Type references to be GC'd 
        internal readonly System.RuntimeMethodHandle PropertyGetterHandle;

        /// Store the handle, allowing the PropertyInfo/MethodInfo/Type references to be GC'd
        internal readonly System.RuntimeMethodHandle PropertySetterHandle; 

        /// cached dynamic method to get the property value from a CLR instance 
        private Func _memberGetter; 

        /// cached dynamic method to set a CLR property value on a CLR instance 
        private Action _memberSetter;
        #endregion

        ///  
        /// Initializes a new OSpace instance of the property class
        ///  
        /// name of the property 
        /// TypeUsage object containing the property type and its facets
        /// for the property 
        internal EdmProperty(string name, TypeUsage typeUsage, System.Reflection.PropertyInfo propertyInfo)
            : this(name, typeUsage)
        {
            System.Diagnostics.Debug.Assert(name == propertyInfo.Name, "different PropertyName"); 
            if (null != propertyInfo)
            { 
                System.Reflection.MethodInfo method; 

                method = propertyInfo.GetGetMethod(true); // return public or non-public getter 
                PropertyGetterHandle = ((null != method) ? method.MethodHandle : default(System.RuntimeMethodHandle));

                method = propertyInfo.GetSetMethod(true); // return public or non-public getter
                PropertySetterHandle = ((null != method) ? method.MethodHandle : default(System.RuntimeMethodHandle)); 
            }
        } 
 
        /// 
        /// Returns the kind of the type 
        /// 
        public override BuiltInTypeKind BuiltInTypeKind { get { return BuiltInTypeKind.EdmProperty; } }

        ///  
        /// Returns true if this property is nullable
        ///  
        /// Thrown if the setter is called when the EdmProperty instance is in ReadOnly state 
        public bool Nullable
        { 
            get
            {
                return (bool)TypeUsage.Facets[DbProviderManifest.NullableFacetName].Value;
            } 
        }
 
        ///  
        /// Returns the default value for this property
        ///  
        /// Thrown if the setter is called when the EdmProperty instance is in ReadOnly state
        public Object DefaultValue
        {
            get 
            {
                return TypeUsage.Facets[DbProviderManifest.DefaultValueFacetName].Value; 
            } 
        }
 
        /// cached dynamic method to get the property value from a CLR instance
        internal Func ValueGetter {
            get { return _memberGetter; }
            set 
            {
                System.Diagnostics.Debug.Assert(null != value, "clearing ValueGetter"); 
                // It doesn't matter which delegate wins, but only one should be jitted 
                Interlocked.CompareExchange(ref _memberGetter, value, null);
            } 
        }

        /// cached dynamic method to set a CLR property value on a CLR instance
        internal Action ValueSetter 
        {
            get { return _memberSetter; } 
            set 
            {
                System.Diagnostics.Debug.Assert(null != value, "clearing ValueSetter"); 
                // It doesn't matter which delegate wins, but only one should be jitted
                Interlocked.CompareExchange(ref _memberSetter, value, null);
            }
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner  [....], [....]
//--------------------------------------------------------------------- 
 
using System.Data.Common;
using System.Threading; 

namespace System.Data.Metadata.Edm
{
    ///  
    /// Represent the edm property class
    ///  
    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Edm")] 
    public sealed class EdmProperty : EdmMember
    { 
        #region Constructors
        /// 
        /// Initializes a new instance of the property class
        ///  
        /// name of the property
        /// TypeUsage object containing the property type and its facets 
        /// Thrown if name or typeUsage arguments are null 
        /// Thrown if name argument is empty string
        internal EdmProperty(string name, TypeUsage typeUsage) 
            : base(name, typeUsage)
        {
            EntityUtil.CheckStringArgument(name, "name");
            EntityUtil.GenericCheckArgumentNull(typeUsage, "typeUsage"); 
        }
        #endregion 
 
        #region Fields
        /// Store the handle, allowing the PropertyInfo/MethodInfo/Type references to be GC'd 
        internal readonly System.RuntimeMethodHandle PropertyGetterHandle;

        /// Store the handle, allowing the PropertyInfo/MethodInfo/Type references to be GC'd
        internal readonly System.RuntimeMethodHandle PropertySetterHandle; 

        /// cached dynamic method to get the property value from a CLR instance 
        private Func _memberGetter; 

        /// cached dynamic method to set a CLR property value on a CLR instance 
        private Action _memberSetter;
        #endregion

        ///  
        /// Initializes a new OSpace instance of the property class
        ///  
        /// name of the property 
        /// TypeUsage object containing the property type and its facets
        /// for the property 
        internal EdmProperty(string name, TypeUsage typeUsage, System.Reflection.PropertyInfo propertyInfo)
            : this(name, typeUsage)
        {
            System.Diagnostics.Debug.Assert(name == propertyInfo.Name, "different PropertyName"); 
            if (null != propertyInfo)
            { 
                System.Reflection.MethodInfo method; 

                method = propertyInfo.GetGetMethod(true); // return public or non-public getter 
                PropertyGetterHandle = ((null != method) ? method.MethodHandle : default(System.RuntimeMethodHandle));

                method = propertyInfo.GetSetMethod(true); // return public or non-public getter
                PropertySetterHandle = ((null != method) ? method.MethodHandle : default(System.RuntimeMethodHandle)); 
            }
        } 
 
        /// 
        /// Returns the kind of the type 
        /// 
        public override BuiltInTypeKind BuiltInTypeKind { get { return BuiltInTypeKind.EdmProperty; } }

        ///  
        /// Returns true if this property is nullable
        ///  
        /// Thrown if the setter is called when the EdmProperty instance is in ReadOnly state 
        public bool Nullable
        { 
            get
            {
                return (bool)TypeUsage.Facets[DbProviderManifest.NullableFacetName].Value;
            } 
        }
 
        ///  
        /// Returns the default value for this property
        ///  
        /// Thrown if the setter is called when the EdmProperty instance is in ReadOnly state
        public Object DefaultValue
        {
            get 
            {
                return TypeUsage.Facets[DbProviderManifest.DefaultValueFacetName].Value; 
            } 
        }
 
        /// cached dynamic method to get the property value from a CLR instance
        internal Func ValueGetter {
            get { return _memberGetter; }
            set 
            {
                System.Diagnostics.Debug.Assert(null != value, "clearing ValueGetter"); 
                // It doesn't matter which delegate wins, but only one should be jitted 
                Interlocked.CompareExchange(ref _memberGetter, value, null);
            } 
        }

        /// cached dynamic method to set a CLR property value on a CLR instance
        internal Action ValueSetter 
        {
            get { return _memberSetter; } 
            set 
            {
                System.Diagnostics.Debug.Assert(null != value, "clearing ValueSetter"); 
                // It doesn't matter which delegate wins, but only one should be jitted
                Interlocked.CompareExchange(ref _memberSetter, value, null);
            }
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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