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using System;

using System.Collections.Generic;

using System.Data;

using System.Data.Common;

using System.Linq;

using System.Text;

namespace Simple.Data.Ado

{

public static class DbConnectionExtensions

{

public static DataTable GetSchema(this IDbConnection connection, string collectionName, params string[] constraints)

{

var adoConnection = connection as DbConnection;

if (adoConnection != null)

return adoConnection.GetSchema(collectionName, constraints);

var schemaGetter = connection as ISchemaGetter;

if (schemaGetter != null)

{

return schemaGetter.GetSchema(collectionName, constraints);

}

throw new InvalidOperationException(string.Format("The IDbConnection type {0} does not provide a GetSchema method.", connection.GetType().Name));

}

}

}