DbCommand.cs :  » 2.6.4-mono-.net-core » System.Data » System » Data » Common » C# / CSharp Open Source

//
// System.Data.Common.DbCommand
//
// Author:
//   Tim Coleman (tim@timcoleman.com)
//
// Copyright (C) Tim Coleman, 2003
//

//
// Copyright (C) 2004 Novell, Inc (http://www.novell.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.
//

#if NET_2_0 || TARGET_JVM

using System.ComponentModel;
using System.Data;

namespace System.Data.Common{
  public abstract class DbCommand : Component, IDbCommand, IDisposable
  {
    protected DbCommand ()
    {
    }

    #region Properties

    [DefaultValue ("")]
    [RefreshProperties (RefreshProperties.All)]
    public abstract string CommandText { get; set; }

    public abstract int CommandTimeout { get; set; }

    [DefaultValue (CommandType.Text)]
    [RefreshProperties (RefreshProperties.All)]
    public abstract CommandType CommandType { get; set; }

    [DefaultValue (null)]
    [Browsable (false)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
    public DbConnection Connection {
      get { return DbConnection; }
      set { DbConnection = value; }
    }

    protected abstract DbConnection DbConnection { get; set; }
    protected abstract DbParameterCollection DbParameterCollection { get; }
    protected abstract DbTransaction DbTransaction { get; set; }

    [EditorBrowsable (EditorBrowsableState.Never)]
    [Browsable (false)]
    [DefaultValue (true)]
    [DesignOnly (true)]
    public abstract bool DesignTimeVisible { get; set; }

    IDbConnection IDbCommand.Connection {
      get { return Connection; }
      set { Connection = (DbConnection) value; }
    }

    IDataParameterCollection IDbCommand.Parameters {
      get { return Parameters; }
    }

    IDbTransaction IDbCommand.Transaction {
      get { return Transaction; }
      set { Transaction = (DbTransaction) value; }
    }

    [Browsable (false)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
    public DbParameterCollection Parameters {
      get { return DbParameterCollection; }
    }

    [Browsable (false)]
    [DefaultValue (null)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
    public DbTransaction Transaction {
      get { return DbTransaction; }
      set { DbTransaction = value; }
    }

    [DefaultValue (UpdateRowSource.Both)]
    public abstract UpdateRowSource UpdatedRowSource { get; set; }

    #endregion // Properties

    #region Methods

    public abstract void Cancel ();
    protected abstract DbParameter CreateDbParameter ();

    public DbParameter CreateParameter ()
    {
      return CreateDbParameter ();
    }

    protected abstract DbDataReader ExecuteDbDataReader (CommandBehavior behavior);
    public abstract int ExecuteNonQuery ();
    
    public DbDataReader ExecuteReader ()
    {
      return ExecuteDbDataReader (CommandBehavior.Default);
    }

    public DbDataReader ExecuteReader (CommandBehavior behavior)
    {
                        return ExecuteDbDataReader (behavior);
    }

    public abstract object ExecuteScalar ();

    IDbDataParameter IDbCommand.CreateParameter ()
    {
      return CreateParameter ();
    }

    IDataReader IDbCommand.ExecuteReader ()
    {
      return ExecuteReader ();
    }

    IDataReader IDbCommand.ExecuteReader (CommandBehavior behavior)
    {
      return ExecuteReader (behavior);
    }

    public abstract void Prepare ();
    
    #endregion // Methods

  }
}

#endif