2 // System.Data.Common.DbCommand
5 // Tim Coleman (tim@timcoleman.com)
7 // Copyright (C) Tim Coleman, 2003
11 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
13 // Permission is hereby granted, free of charge, to any person obtaining
14 // a copy of this software and associated documentation files (the
15 // "Software"), to deal in the Software without restriction, including
16 // without limitation the rights to use, copy, modify, merge, publish,
17 // distribute, sublicense, and/or sell copies of the Software, and to
18 // permit persons to whom the Software is furnished to do so, subject to
19 // the following conditions:
21 // The above copyright notice and this permission notice shall be
22 // included in all copies or substantial portions of the Software.
24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
28 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
29 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
35 using System.ComponentModel;
38 namespace System.Data.Common {
39 public abstract class DbCommand : Component, IDbCommand, IDisposable
41 protected DbCommand ()
47 public abstract string CommandText { get; set; }
48 public abstract int CommandTimeout { get; set; }
49 public abstract CommandType CommandType { get; set; }
51 public DbConnection Connection {
52 get { return DbConnection; }
53 set { DbConnection = value; }
56 protected abstract DbConnection DbConnection { get; set; }
57 protected abstract DbParameterCollection DbParameterCollection { get; set; }
58 protected abstract DbTransaction DbTransaction { get; set; }
59 public abstract bool DesignTimeVisible { get; set; }
61 IDbConnection IDbCommand.Connection {
62 get { return Connection; }
63 set { Connection = (DbConnection) value; }
66 IDataParameterCollection IDbCommand.Parameters {
67 get { return Parameters; }
70 IDbTransaction IDbCommand.Transaction {
71 get { return Transaction; }
72 set { Transaction = (DbTransaction) value; }
76 public virtual DbCommandOptionalFeatures OptionalFeatures {
77 get { throw new NotImplementedException (); }
80 public DbParameterCollection Parameters {
81 get { return DbParameterCollection; }
84 public DbTransaction Transaction {
85 get { return DbTransaction; }
86 set { DbTransaction = value; }
89 public abstract UpdateRowSource UpdatedRowSource { get; set; }
91 #endregion // Properties
95 public abstract void Cancel ();
96 protected abstract DbParameter CreateDbParameter ();
98 public DbParameter CreateParameter ()
100 return CreateDbParameter ();
103 protected abstract DbDataReader ExecuteDbDataReader (CommandBehavior behavior);
106 protected virtual DbDataReader ExecuteDbPageReader (CommandBehavior behavior, int startRecord, int maxRecords)
108 throw new NotImplementedException ();
111 public abstract int ExecuteNonQuery ();
112 public DbDataReader ExecutePageReader (CommandBehavior behavior, int startRecord, int maxRecords)
114 return ExecuteDbPageReader (behavior, startRecord, maxRecords);
118 public DbDataReader ExecuteReader ()
120 throw new NotImplementedException ();
124 public DbDataReader ExecuteReader (CommandBehavior behavior)
126 throw new NotImplementedException ();
129 public abstract object ExecuteScalar ();
131 IDbDataParameter IDbCommand.CreateParameter ()
133 return CreateParameter ();
136 IDataReader IDbCommand.ExecuteReader ()
138 return ExecuteReader ();
141 IDataReader IDbCommand.ExecuteReader (CommandBehavior behavior)
143 return ExecuteReader (behavior);
146 public abstract void Prepare ();
148 #endregion // Methods