private DbAccessCommand CreateAccessCommand()
{
switch (this.AccessType)
{
case DbAccessType.Odbc:
this.DbCommand = OdbcAccessCommand.GetInstance(this.ConnectionString);
break;
case DbAccessType.OleDb:
this.DbCommand = OleDbAccessCommand.GetInstance(this.ConnectionString);
break;
case DbAccessType.Oracle:
this.DbCommand = OracleAccessCommand.GetInstance(this.ConnectionString);
break;
case DbAccessType.Sql:
this.DbCommand = SqlAccessCommand.GetInstance(this.ConnectionString);
break;
default:
throw new NotSupportedException(this.AccessType.ToString());
}
return(this.DbCommand);
}
private void FillResultNode(XmlNode resultNode, DbAccessCommand dbCommand, DbExcuteType exeType)
{
object result = null;
switch (exeType)
{
case DbExcuteType.ExecuteNonQuery:
result = this.DbCommand.ExecuteNonQuery();
break;
case DbExcuteType.ExecuteReader:
result = this.DbCommand.ExecuteDataSet();
break;
case DbExcuteType.ExecuteScalar:
result = this.DbCommand.ExecuteScalar();
break;
case DbExcuteType.ExecuteXmlReader:
{
XmlDocument tempDoc = new XmlDocument();
tempDoc.Load(this.DbCommand.ExecuteXmlReader());
result = tempDoc.DocumentElement;
break;
}
case DbExcuteType.ExecuteSchemaTable:
result = this.DbCommand.ExecuteSchemaTable();
break;
case DbExcuteType.ExecuteDataTable:
result = this.DbCommand.ExecuteDataTable();
break;
case DbExcuteType.ExecuteDataRow:
result = this.DbCommand.ExecuteDataRow().Table;
break;
case DbExcuteType.ExecuteTableSchema:
result = this.DbCommand.ExecuteTableSchema();
break;
case DbExcuteType.ExecuteDataSet:
result = this.DbCommand.ExecuteDataSet();
break;
case DbExcuteType.ExecuteSetSchema:
result = this.DbCommand.ExecuteSetSchema();
break;
}
if (result is XmlNode)
{
XmlHelper.AddNode(resultNode, result as XmlNode);
}
else if (result != null)
{
XmlHelper.AddNode(resultNode, SerializeHelper.XmlSerialize(result));
}
}
public ExecuteContext(DbAccessCommand dbCommand)
{
this.NeedClose = false;
this.IsSuccessful = false;
this.DbCommand = dbCommand;
if (this.DbCommand.AutoOpenClose && (this.DbCommand.DbConnection.State != ConnectionState.Open))
{
this.DbCommand.Open();
this.NeedClose = true;
}
}
private void InnerExecuteXml(XmlDocument doc, DbAccessCommand dbCommand, DbExcuteType[] exeTypes, DbAccessInformation[] accessInfos)
{
int i = 0;
int j = exeTypes.Length;
while (i < j)
{
DbAccessInformation accessInfo = accessInfos[i];
XmlNode itemNode = XmlHelper.SetInnerText(doc.DocumentElement, "ActionItem", string.Empty);
XmlHelper.SetAttribute(itemNode, "sequence", (i + 1).ToString());
dbCommand.AttachAccessInfo(accessInfo);
XmlNode resultNode = XmlHelper.SetInnerText(itemNode, "Result", string.Empty);
this.FillResultNode(resultNode, dbCommand, exeTypes[i]);
dbCommand.PickupParameteValues(accessInfo);
XmlHelper.AddNode(itemNode, SerializeHelper.XmlSerialize(accessInfo));
i++;
}
}
public static OleDbAccessCommand GetInstance(string connectionString)
{
return(DbAccessCommand.GetInstance <OleDbAccessCommand>(connectionString));
}