//------------------------------------------------------------------------------
// <copyright file="ExpressionBinding.cs" company="Microsoft">
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web.UI {

    using System;
    using System.ComponentModel;
    using System.ComponentModel.Design;
    using System.Data;
    using System.Globalization;
    using System.Security.Permissions;
    using System.Web.Util;


    /// <devdoc>
    /// </devdoc>
    public sealed class ExpressionBinding {

        private string _propertyName;
        private Type _propertyType;
        private string _expression;
        private string _expressionPrefix;
        private bool _generated;
        private object _parsedExpressionData;

        public ExpressionBinding(string propertyName, Type propertyType, string expressionPrefix, string expression) : this(propertyName, propertyType, expressionPrefix, expression, false, null) {
        }


        /// <devdoc>
        /// </devdoc>
        internal ExpressionBinding(string propertyName, Type propertyType, string expressionPrefix, string expression, bool generated, object parsedExpressionData) {
            _propertyName = propertyName;
            _propertyType = propertyType;
            _expression = expression;
            _expressionPrefix = expressionPrefix;
            _generated = generated;
            _parsedExpressionData = parsedExpressionData;
        }


        /// <devdoc>
        /// </devdoc>
        public string Expression {
            get {
                return _expression;
            }
            set {
                _expression = value;
            }
        }


        /// <devdoc>
        /// </devdoc>G
        public string ExpressionPrefix {
            get {
                return _expressionPrefix;
            }
            set {
                _expressionPrefix = value;
            }
        }

        public bool Generated {
            get {
                return _generated;
            }
        }

        public object ParsedExpressionData {
            get {
                return _parsedExpressionData;
            }
        }


        /// <devdoc>
        /// </devdoc>
        public string PropertyName {
            get {
                return _propertyName;
            }
        }


        /// <devdoc>
        /// </devdoc>
        public Type PropertyType {
            get {
                return _propertyType;
            }
        }


        /// <devdoc>
        /// </devdoc>
        public override int GetHashCode() {
            return _propertyName.ToLower(CultureInfo.InvariantCulture).GetHashCode();
        }


        /// <devdoc>
        /// </devdoc>
        public override bool Equals(object obj) {
            if ((obj != null) && (obj is ExpressionBinding)) {
                ExpressionBinding binding = (ExpressionBinding)obj;

                return StringUtil.EqualsIgnoreCase(_propertyName, binding.PropertyName);
            }
            return false;
        }
    }
}