XmlSortKeyAccumulator.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / XmlUtils / System / Xml / Xsl / Runtime / XmlSortKeyAccumulator.cs / 1305376 / XmlSortKeyAccumulator.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// [....] 
//-----------------------------------------------------------------------------
using System; 
using System.Diagnostics; 
using System.Globalization;
using System.ComponentModel; 

namespace System.Xml.Xsl.Runtime {

    ///  
    /// Accumulates a list of sort keys and stores them in an array.
    ///  
    [EditorBrowsable(EditorBrowsableState.Never)] 
    public struct XmlSortKeyAccumulator {
        private XmlSortKey[] keys; 
        private int pos;

    #if DEBUG
        private const int DefaultSortKeyCount = 4; 
    #else
        private const int DefaultSortKeyCount = 64; 
    #endif 

        ///  
        /// Initialize the XmlSortKeyAccumulator.
        /// 
        public void Create() {
            if (this.keys == null) 
                this.keys = new XmlSortKey[DefaultSortKeyCount];
 
            this.pos = 0; 
            this.keys[0] = null;
        } 

        /// 
        /// Create a new sort key and append it to the current run of sort keys.
        ///  
        public void AddStringSortKey(XmlCollation collation, string value) {
            AppendSortKey(collation.CreateSortKey(value)); 
        } 

        public void AddDecimalSortKey(XmlCollation collation, decimal value) { 
            AppendSortKey(new XmlDecimalSortKey(value, collation));
        }

        public void AddIntegerSortKey(XmlCollation collation, long value) { 
            AppendSortKey(new XmlIntegerSortKey(value, collation));
        } 
 
        public void AddIntSortKey(XmlCollation collation, int value) {
            AppendSortKey(new XmlIntSortKey(value, collation)); 
        }

        public void AddDoubleSortKey(XmlCollation collation, double value) {
            AppendSortKey(new XmlDoubleSortKey(value, collation)); 
        }
 
        public void AddDateTimeSortKey(XmlCollation collation, DateTime value) { 
            AppendSortKey(new XmlDateTimeSortKey(value, collation));
        } 

        public void AddEmptySortKey(XmlCollation collation) {
            AppendSortKey(new XmlEmptySortKey(collation));
        } 

        ///  
        /// Finish creating the current run of sort keys and begin a new run. 
        /// 
        public void FinishSortKeys() { 
            this.pos++;
            if (this.pos >= this.keys.Length) {
                XmlSortKey[] keysNew = new XmlSortKey[this.pos * 2];
                Array.Copy(this.keys, 0, keysNew, 0, this.keys.Length); 
                this.keys = keysNew;
            } 
            this.keys[this.pos] = null; 
        }
 
        /// 
        /// Append new sort key to the current run of sort keys.
        /// 
        private void AppendSortKey(XmlSortKey key) { 
            // Ensure that sort will be stable by setting index of key
            key.Priority = this.pos; 
 
            if (this.keys[this.pos] == null)
                this.keys[this.pos] = key; 
            else
                this.keys[this.pos].AddSortKey(key);
        }
 
        /// 
        /// Get array of sort keys that was constructed by this internal class. 
        ///  
        public Array Keys {
            get { return this.keys; } 
        }
    }
}

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

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