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GenericDbParameterFactory.cs

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namespace Simple.Data.Ado

{

using System;

using System.Data;

using Schema;

internal class GenericDbParameterFactory : IDbParameterFactory

{

private readonly IDbCommand _command;

public GenericDbParameterFactory(IDbCommand command)

{

if (command == null) throw new ArgumentNullException("command");

_command = command;

}

public IDbDataParameter CreateParameter(string name)

{

if (name == null) throw new ArgumentNullException("name");

var parameter = _command.CreateParameter();

parameter.ParameterName = name;

return parameter;

}

public IDbDataParameter CreateParameter(string name, Column column)

{

if (name == null) throw new ArgumentNullException("name");

if (column == null) throw new ArgumentNullException("column");

var parameter = _command.CreateParameter();

parameter.ParameterName = name;

parameter.DbType = column.DbType;

parameter.Size = column.MaxLength;

parameter.SourceColumn = column.ActualName;

return parameter;

}

public IDbDataParameter CreateParameter(string name, DbType dbType, int size)

{

if (name == null) throw new ArgumentNullException("name");

var parameter = _command.CreateParameter();

parameter.ParameterName = name;

parameter.DbType = dbType;

parameter.Size = size;

return parameter;

}

}

}