#if MYSQL_6_9 // Copyright (c) 2004-2008 MySQL AB, 2008-2009 Sun Microsystems, Inc. // // MySQL Connector/NET is licensed under the terms of the GPLv2 // <http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most // MySQL Connectors. There are special exceptions to the terms and // conditions of the GPLv2 as it is applied to this software, see the // FLOSS License Exception // <http://www.mysql.com/about/legal/licensing/foss-exception.html>. // // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published // by the Free Software Foundation; version 2 of the License. // // This program is distributed in the hope that it will be useful, but // WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY // or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License // for more details. // // You should have received a copy of the GNU General Public License along // with this program; if not, write to the Free Software Foundation, Inc., // 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA using System; using System.Collections; using System.ComponentModel; using System.Collections.Generic; using Externals.MySql.Data.MySqlClient.Properties; namespace Externals.MySql.Data.MySqlClient { /// <summary> /// Represents a collection of parameters relevant to a <see cref="MySqlCommand"/> as well as their respective mappings to columns in a <see cref="System.Data.DataSet"/>. This class cannot be inherited. /// </summary> internal sealed partial class MySqlParameterCollection { List<MySqlParameter> items = new List<MySqlParameter>(); private Dictionary<string,int> indexHashCS; private Dictionary<string,int> indexHashCI; //turns to true if any parameter is unnamed internal bool containsUnnamedParameters; internal MySqlParameterCollection(MySqlCommand cmd) { indexHashCS = new Dictionary<string, int>(); indexHashCI = new Dictionary<string,int>(StringComparer.CurrentCultureIgnoreCase); containsUnnamedParameters = false; Clear(); } /// <summary> /// Gets the number of MySqlParameter objects in the collection. /// </summary> public override int Count { get { return items.Count; } } #region Public Methods /// <summary> /// Gets the <see cref="MySqlParameter"/> at the specified index. /// </summary> /// <overloads>Gets the <see cref="MySqlParameter"/> with a specified attribute. /// [C#] In C#, this property is the indexer for the <see cref="MySqlParameterCollection"/> class. /// </overloads> public new MySqlParameter this[int index] { get { return InternalGetParameter(index); } set { InternalSetParameter(index, value); } } /// <summary> /// Gets the <see cref="MySqlParameter"/> with the specified name. /// </summary> public new MySqlParameter this[string name] { get { return InternalGetParameter(name); } set { InternalSetParameter(name, value); } } /// <summary> /// Adds the specified <see cref="MySqlParameter"/> object to the <see cref="MySqlParameterCollection"/>. /// </summary> /// <param name="value">The <see cref="MySqlParameter"/> to add to the collection.</param> /// <returns>The newly added <see cref="MySqlParameter"/> object.</returns> public MySqlParameter Add(MySqlParameter value) { return InternalAdd(value, -1); } /// <summary> /// Adds a <see cref="MySqlParameter"/> to the <see cref="MySqlParameterCollection"/> given the specified parameter name and value. /// </summary> /// <param name="parameterName">The name of the parameter.</param> /// <param name="value">The <see cref="MySqlParameter.Value"/> of the <see cref="MySqlParameter"/> to add to the collection.</param> /// <returns>The newly added <see cref="MySqlParameter"/> object.</returns> [Obsolete("Add(String parameterName, Object value) has been deprecated. Use AddWithValue(String parameterName, Object value)")] public MySqlParameter Add(string parameterName, object value) { return Add(new MySqlParameter(parameterName, value)); } public MySqlParameter AddWithValue(string parameterName, object value) { return Add(new MySqlParameter(parameterName, value)); } /// <summary> /// Adds a <see cref="MySqlParameter"/> to the <see cref="MySqlParameterCollection"/> given the parameter name and the data type. /// </summary> /// <param name="parameterName">The name of the parameter.</param> /// <param name="dbType">One of the <see cref="MySqlDbType"/> values. </param> /// <returns>The newly added <see cref="MySqlParameter"/> object.</returns> public MySqlParameter Add(string parameterName, MySqlDbType dbType) { return Add(new MySqlParameter(parameterName, dbType)); } /// <summary> /// Adds a <see cref="MySqlParameter"/> to the <see cref="MySqlParameterCollection"/> with the parameter name, the data type, and the column length. /// </summary> /// <param name="parameterName">The name of the parameter.</param> /// <param name="dbType">One of the <see cref="MySqlDbType"/> values. </param> /// <param name="size">The length of the column.</param> /// <returns>The newly added <see cref="MySqlParameter"/> object.</returns> public MySqlParameter Add(string parameterName, MySqlDbType dbType, int size) { return Add(new MySqlParameter(parameterName, dbType, size)); } #endregion /// <summary> /// Removes all items from the collection. /// </summary> public override void Clear() { foreach (MySqlParameter p in items) p.Collection = null; items.Clear(); indexHashCS.Clear(); indexHashCI.Clear(); } void CheckIndex(int index) { if (index < 0 || index >= Count) throw new IndexOutOfRangeException("Parameter index is out of range."); } private MySqlParameter InternalGetParameter(int index) { CheckIndex(index); return items[index]; } private MySqlParameter InternalGetParameter(string parameterName) { int index = IndexOf(parameterName); if (index < 0) { // check to see if the user has added the parameter without a // parameter marker. If so, kindly tell them what they did. if (parameterName.StartsWith("@", StringComparison.Ordinal) || parameterName.StartsWith("?", StringComparison.Ordinal)) { string newParameterName = parameterName.Substring(1); index = IndexOf(newParameterName); if (index != -1) return items[index]; } throw new ArgumentException("Parameter '" + parameterName + "' not found in the collection."); } return items[index]; } private void InternalSetParameter(string parameterName, MySqlParameter value) { int index = IndexOf(parameterName); if (index < 0) throw new ArgumentException("Parameter '" + parameterName + "' not found in the collection."); InternalSetParameter(index, value); } private void InternalSetParameter(int index, MySqlParameter value) { MySqlParameter newParameter = value as MySqlParameter; if (newParameter == null) throw new ArgumentException(Resources.NewValueShouldBeMySqlParameter); CheckIndex(index); MySqlParameter p = (MySqlParameter)items[index]; // first we remove the old parameter from our hashes indexHashCS.Remove(p.ParameterName); indexHashCI.Remove(p.ParameterName); // then we add in the new parameter items[index] = newParameter; indexHashCS.Add(value.ParameterName, index); indexHashCI.Add(value.ParameterName, index); } /// <summary> /// Gets the location of the <see cref="MySqlParameter"/> in the collection with a specific parameter name. /// </summary> /// <param name="parameterName">The name of the <see cref="MySqlParameter"/> object to retrieve. </param> /// <returns>The zero-based location of the <see cref="MySqlParameter"/> in the collection.</returns> public override int IndexOf(string parameterName) { int i = -1; if (!indexHashCS.TryGetValue(parameterName, out i) && !indexHashCI.TryGetValue(parameterName, out i)) return -1; return i; } /// <summary> /// Gets the location of a <see cref="MySqlParameter"/> in the collection. /// </summary> /// <param name="value">The <see cref="MySqlParameter"/> object to locate. </param> /// <returns>The zero-based location of the <see cref="MySqlParameter"/> in the collection.</returns> /// <overloads>Gets the location of a <see cref="MySqlParameter"/> in the collection.</overloads> public override int IndexOf(object value) { MySqlParameter parameter = value as MySqlParameter; if (null == parameter) throw new ArgumentException("Argument must be of type DbParameter", "value"); return items.IndexOf(parameter); } internal void ParameterNameChanged(MySqlParameter p, string oldName, string newName) { int index = IndexOf(oldName); indexHashCS.Remove(oldName); indexHashCI.Remove(oldName); indexHashCS.Add(newName, index); indexHashCI.Add(newName, index); } private MySqlParameter InternalAdd(MySqlParameter value, int index) { if (value == null) throw new ArgumentException("The MySqlParameterCollection only accepts non-null MySqlParameter type objects.", "value"); // if the parameter is unnamed, then assign a default name if (String.IsNullOrEmpty(value.ParameterName)) value.ParameterName = String.Format("Parameter{0}", GetNextIndex()); // make sure we don't already have a parameter with this name if (IndexOf(value.ParameterName) >= 0) { throw new MySqlException( String.Format(Resources.ParameterAlreadyDefined, value.ParameterName)); } else { string inComingName = value.ParameterName; if (inComingName[0] == '@' || inComingName[0] == '?') inComingName = inComingName.Substring(1, inComingName.Length - 1); if (IndexOf(inComingName) >= 0) throw new MySqlException( String.Format(Resources.ParameterAlreadyDefined, value.ParameterName)); } if (index == -1) { items.Add(value); index = items.Count - 1; } else { items.Insert(index, value); AdjustHashes(index, true); } indexHashCS.Add(value.ParameterName, index); indexHashCI.Add(value.ParameterName, index); value.Collection = this; return value; } private int GetNextIndex() { int index = Count+1; while (true) { string name = "Parameter" + index.ToString(); if (!indexHashCI.ContainsKey(name)) break; index++; } return index; } private static void AdjustHash(Dictionary<string,int> hash, string parameterName, int keyIndex, bool addEntry) { if (!hash.ContainsKey(parameterName)) return; int index = (int)hash[parameterName]; if (index < keyIndex) return; hash[parameterName] = addEntry ? ++index : --index; } /// <summary> /// This method will update all the items in the index hashes when /// we insert a parameter somewhere in the middle /// </summary> /// <param name="keyIndex"></param> /// <param name="addEntry"></param> private void AdjustHashes(int keyIndex, bool addEntry) { for (int i = 0; i < Count; i++) { string name = (items[i] as MySqlParameter).ParameterName; AdjustHash(indexHashCI, name, keyIndex, addEntry); AdjustHash(indexHashCS, name, keyIndex, addEntry); } } private MySqlParameter GetParameterFlexibleInternal(string baseName) { int index = IndexOf(baseName); if (-1 == index) index = IndexOf("?" + baseName); if (-1 == index) index = IndexOf("@" + baseName); if (-1 != index) return this[index]; return null; } internal MySqlParameter GetParameterFlexible(string parameterName, bool throwOnNotFound) { string baseName = parameterName; MySqlParameter p = GetParameterFlexibleInternal(baseName); if (p != null) return p; if (parameterName.StartsWith("@", StringComparison.Ordinal) || parameterName.StartsWith("?", StringComparison.Ordinal)) baseName = parameterName.Substring(1); p = GetParameterFlexibleInternal(baseName); if (p != null) return p; if (throwOnNotFound) throw new ArgumentException("Parameter '" + parameterName + "' not found in the collection."); return null; } } } #endif