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