284 lines
9.1 KiB
C#
284 lines
9.1 KiB
C#
//
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// System.Data.OracleClient.OracleCommand
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//
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// Authors:
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// Konstantin Triger <kostat@mainsoft.com>
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// Boris Kirzner <borisk@mainsoft.com>
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//
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// (C) 2005 Mainsoft Corporation (http://www.mainsoft.com)
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//
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Collections;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Data;
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using System.Data.Common;
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using System.Data.ProviderBase;
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using System.Globalization;
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using java.sql;
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// Cannot use this because it makes ArrayList ambiguous reference
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//using java.util;
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#if !USE_DOTNET_REGEXP
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using java.util.regex;
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#endif
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namespace System.Data.OracleClient {
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public sealed class OracleCommand : AbstractDbCommand {
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#region Fields
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#if USE_DOTNET_REGEXP
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internal static readonly Regex NamedParameterStoredProcedureRegExp = new Regex(@"^\s*{?\s*((?<RETVAL>\:\w+)\s*=\s*)?call\s+(?<PROCNAME>(((\[[^\]]*\])|([^\.\(])*)\s*\.\s*){0,2}(\[[^\]]*\]|((\s*[^\.\(\)\{\}\s])+)))\s*(\(\s*(?<USERPARAM>((""([^""]|(""""))*"")|('([^']|(''))*')|[^,])*)?\s*(,\s*(?<USERPARAM>((""([^""]|(""""))*"")|('([^']|(''))*')|[^,])*)\s*)*\))?\s*}?\s*$", RegexOptions.Compiled | RegexOptions.IgnoreCase | RegexOptions.ExplicitCapture);
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#else
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internal static readonly Pattern NamedParameterStoredProcedureRegExp = Pattern.compile(@"^\s*\{?\s*(?:(\:\w+)\s*=\s*)?call\s+((?:(?:(?:\[[^\]]*\])|(?:[^\.\(\)\{\}\[\]])*)\s*\.\s*){0,2}(?:\[[^\]]*\]|(?:(?:\s*[^\.\(\)\{\}\[\]])+)))\s*(?:\((.*)\))?\s*\}?\s*$", Pattern.CASE_INSENSITIVE);
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#endif
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internal static readonly SimpleRegex NamedParameterRegExp = new OracleParamsRegex();
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// internal static readonly int oracleTypeRefCursor = java.sql.Types.OTHER;
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private int _currentParameterIndex = 0;
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private ResultSet _currentRefCursor;
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#endregion // Fields
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#region Constructors
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/**
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* Initializes a new instance of the OracleCommand class.
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* The base constructor initializes all fields to their default values.
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* The following table shows initial property values for an instance of SqlCommand.
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*/
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public OracleCommand() : this(null, null, null) {
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}
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public OracleCommand(OracleConnection connection) : this(null, connection, null) {
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}
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/**
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* Initializes a new instance of the OracleCommand class with the text of the query.
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* @param cmdText The text of the query.
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*/
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public OracleCommand(String cmdText) : this(cmdText, null, null) {
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}
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/**
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* Initializes a new instance of the OracleCommand class with the text of the query and a SqlConnection.
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* @param cmdText The text of the query.
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* @param connection A SqlConnection that represents the connection to an instance of SQL Server.
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*/
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public OracleCommand(String cmdText, OracleConnection connection) : this(cmdText, connection, null) {
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}
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/**
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* Initializes a new instance of the OracleCommand class with the text of the query, a SqlConnection, and the Transaction.
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* @param cmdText The text of the query.
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* @param connection A SqlConnection that represents the connection to an instance of SQL Server.
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* @param transaction The SqlTransaction in which the OracleCommand executes.
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*/
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public OracleCommand(
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String cmdText,
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OracleConnection connection,
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OracleTransaction transaction)
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: base(cmdText, connection, transaction) {
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}
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#endregion // Constructors
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#region Properties
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public new OracleConnection Connection {
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get { return (OracleConnection)base.Connection; }
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set { base.Connection = (AbstractDBConnection)value; }
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}
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public new OracleParameterCollection Parameters {
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get {
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return (OracleParameterCollection)base.Parameters;
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}
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}
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public new OracleTransaction Transaction {
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get { return (OracleTransaction)base.Transaction; }
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set { base.Transaction = (DbTransaction)value; }
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}
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protected override bool SkipParameter(DbParameter parameter) {
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return ((OracleParameter)parameter).OracleType == OracleType.Cursor;
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}
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protected sealed override ResultSet CurrentResultSet {
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get {
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try {
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ResultSet resultSet = base.CurrentResultSet;
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if (resultSet != null) {
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return resultSet;
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}
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return CurrentRefCursor;
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}
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catch(SQLException e) {
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throw CreateException(e);
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}
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}
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}
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private ResultSet CurrentRefCursor {
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get {
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if (_currentParameterIndex < 0) {
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NextRefCursor();
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}
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if (_currentRefCursor == null && _currentParameterIndex < InternalParameters.Count) {
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_currentRefCursor = (ResultSet)((CallableStatement)Statement).getObject(_currentParameterIndex + 1);
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}
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return _currentRefCursor;
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}
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}
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#if USE_DOTNET_REGEX
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protected override Regex StoredProcedureRegExp
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#else
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protected override java.util.regex.Pattern StoredProcedureRegExp {
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#endif
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get { return NamedParameterStoredProcedureRegExp; }
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}
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protected override SimpleRegex ParameterRegExp {
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get { return NamedParameterRegExp; }
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}
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#endregion // Properties
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#region Methods
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protected override bool NextResultSet() {
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try {
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bool hasMoreResults = base.NextResultSet();
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if (hasMoreResults) {
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return true;
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}
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else {
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return NextRefCursor();
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}
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}
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catch (SQLException e) {
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throw CreateException(e);
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}
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}
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private bool NextRefCursor() {
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_currentRefCursor = null;
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for (_currentParameterIndex++;InternalParameters.Count > _currentParameterIndex;_currentParameterIndex++) {
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OracleParameter param = (OracleParameter)InternalParameters[_currentParameterIndex];
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if (param.OracleType == OracleType.Cursor && ((param.Direction & ParameterDirection.Output) == ParameterDirection.Output))
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return true;
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}
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return false;
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}
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public new OracleDataReader ExecuteReader() {
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return (OracleDataReader)ExecuteReader(CommandBehavior.Default);
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}
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public new OracleDataReader ExecuteReader(CommandBehavior behavior) {
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return (OracleDataReader)base.ExecuteReader(behavior);
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}
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public new OracleParameter CreateParameter() {
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return (OracleParameter)CreateParameterInternal();
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}
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protected sealed override void CheckParameters() {
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//TBD
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}
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protected override AbstractDbParameter GetUserParameter(string parameterName, IList userParametersList, int userParametersListPosition) {
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for(int i=0; i < userParametersList.Count; i++) {
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OracleParameter userParameter = (OracleParameter)userParametersList[i];
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if (String.Compare(parameterName, userParameter.InternalPlaceholder.Trim(), true, CultureInfo.InvariantCulture) == 0) {
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return userParameter;
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}
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}
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return null;
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}
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protected override AbstractDbParameter GetReturnParameter (IList userParametersList) {
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for(int i=0; i < userParametersList.Count; i++) {
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AbstractDbParameter userParameter = (AbstractDbParameter)userParametersList[i];
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if (userParameter.Direction == ParameterDirection.ReturnValue) {
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return userParameter;
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}
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}
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return null;
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}
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protected sealed override DbParameter CreateParameterInternal() {
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return new OracleParameter();
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}
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protected sealed override DbParameterCollection CreateParameterCollection(AbstractDbCommand parent) {
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return new OracleParameterCollection((OracleCommand)parent);
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}
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public override object Clone() {
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OracleCommand clone = (OracleCommand)base.Clone();
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clone._currentParameterIndex = 0;
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clone._currentRefCursor = null;
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return clone;
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}
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protected override void PrepareInternalParameters() {
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InternalParameters.Clear();
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_currentParameterIndex = -1;
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}
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protected sealed override DbDataReader CreateReader() {
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return new OracleDataReader(this);
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}
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protected sealed override SystemException CreateException(SQLException e) {
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return new OracleException(e,Connection);
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}
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public object ExecuteOracleScalar() {
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throw new NotImplementedException();
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}
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#if SUPPORT_ORACLE_TYPES
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public int ExecuteOracleNonQuery(
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out OracleString rowid
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) {
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throw new NotImplementedException();
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}
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#endif
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#endregion // Methods
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}
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} |