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using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Data.Linq;
using System.Data.Common;
using System.Linq.Expressions;
using System.IO;
using System.Linq;
using System.Text;
using System.Transactions;
using System.Reflection;
using System.Diagnostics.CodeAnalysis;
namespace System.Data.Linq.Provider {
/// <summary>
/// A data provider implements this interface to hook into the LINQ to SQL framework.
/// </summary>
internal interface IProvider : IDisposable {
/// <summary>
/// Initializes the database provider with the data services object and connection.
/// </summary>
/// <param name="dataServices"></param>
/// <param name="connection">A connection string, connection object or transaction object
/// used to seed the provider with database connection information.</param>
void Initialize(IDataServices dataServices, object connection);
/// <summary>
/// The text writer used by the provider to output information such as query and commands
/// being executed.
/// </summary>
TextWriter Log { get; set; }
/// <summary>
/// The connection object used by the provider when executing queries and commands.
/// </summary>
DbConnection Connection { get; }
/// <summary>
/// The transaction object used by the provider when executing queries and commands.
/// </summary>
DbTransaction Transaction { get; set; }
/// <summary>
/// The command timeout setting to use for command execution.
/// </summary>
int CommandTimeout { get; set; }
/// <summary>
/// Clears the connection of any current activity.
/// </summary>
void ClearConnection();
/// <summary>
/// Creates a new database instance (catalog or file) at the location specified by the connection
/// using the metadata encoded within the entities or mapping file.
/// </summary>
void CreateDatabase();
/// <summary>
/// Deletes the database instance at the location specified by the connection.
/// </summary>
void DeleteDatabase();
/// <summary>
/// Returns true if the database specified by the connection object exists.
/// </summary>
/// <returns></returns>
bool DatabaseExists();
/// <summary>
/// Executes the query specified as a LINQ expression tree.
/// </summary>
/// <param name="query"></param>
/// <returns>A result object from which you can obtain the return value and output parameters.</returns>
IExecuteResult Execute(Expression query);
/// <summary>
/// Compiles the query specified as a LINQ expression tree.
/// </summary>
/// <param name="query"></param>
/// <returns>A compiled query instance.</returns>
ICompiledQuery Compile(Expression query);
/// <summary>
/// Translates a DbDataReader into a sequence of objects (entity or projection) by mapping
/// columns of the data reader to object members by name.
/// </summary>
/// <param name="elementType">The type of the resulting objects.</param>
/// <param name="reader"></param>
/// <returns></returns>
IEnumerable Translate(Type elementType, DbDataReader reader);
/// <summary>
/// Translates an IDataReader containing multiple result sets into sequences of objects
/// (entity or projection) by mapping columns of the data reader to object members by name.
/// </summary>
/// <param name="reader"></param>
/// <returns></returns>
IMultipleResults Translate(DbDataReader reader);
/// <summary>
/// Returns the query text in the database server's native query language
/// that would need to be executed to perform the specified query.
/// </summary>
/// <param name="query">The query</param>
/// <returns></returns>
string GetQueryText(Expression query);
/// <summary>
/// Return an IDbCommand object representing the translation of specified query.
/// </summary>
/// <param name="query"></param>
/// <returns></returns>
DbCommand GetCommand(Expression query);
}
/// <summary>
/// A compiled query.
/// </summary>
internal interface ICompiledQuery {
/// <summary>
/// Executes the compiled query using the specified provider and a set of arguments.
/// </summary>
/// <param name="provider">The provider that will execute the compiled query.</param>
/// <param name="arguments">Argument values to supply to the parameters of the compiled query,
/// when the query is specified as a LambdaExpression.</param>
/// <returns></returns>
IExecuteResult Execute(IProvider provider, object[] arguments);
}
internal static class DataManipulation {
/// <summary>
/// The method signature used to encode an Insert command.
/// The method will throw a NotImplementedException if called directly.
/// </summary>
/// <typeparam name="TEntity"></typeparam>
/// <typeparam name="TResult"></typeparam>
/// <param name="item"></param>
/// <param name="resultSelector"></param>
/// <returns></returns>
[SuppressMessage("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "item", Justification = "Microsoft: The method is being used to represent a method signature")]
[SuppressMessage("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "resultSelector", Justification = "Microsoft: The method is being used to represent a method signature")]
public static TResult Insert<TEntity, TResult>(TEntity item, Func<TEntity, TResult> resultSelector) {
throw new NotImplementedException();
}
/// <summary>
/// The method signature used to encode an Insert command.
/// The method will throw a NotImplementedException if called directly.
/// </summary>
/// <typeparam name="TEntity"></typeparam>
/// <param name="item"></param>
/// <returns></returns>
[SuppressMessage("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "item", Justification = "Microsoft: The method is being used to represent a method signature")]
public static int Insert<TEntity>(TEntity item) {
throw new NotImplementedException();
}
/// <summary>
/// The method signature used to encode an Update command.
/// The method will throw a NotImplementedException if called directly.
/// </summary>
/// <typeparam name="TEntity"></typeparam>
/// <typeparam name="TResult"></typeparam>
/// <param name="item"></param>
/// <param name="check"></param>
/// <param name="resultSelector"></param>
/// <returns></returns>
[SuppressMessage("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "item", Justification = "Microsoft: The method is being used to represent a method signature")]
[SuppressMessage("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "check", Justification = "Microsoft: The method is being used to represent a method signature")]
[SuppressMessage("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "resultSelector", Justification = "Microsoft: The method is being used to represent a method signature")]
public static TResult Update<TEntity, TResult>(TEntity item, Func<TEntity, bool> check, Func<TEntity, TResult> resultSelector) {
throw new NotImplementedException();
}
/// <summary>
/// The method signature used to encode an Update command.
/// The method will throw a NotImplementedException if called directly.
/// </summary>
/// <typeparam name="TEntity"></typeparam>
/// <typeparam name="TResult"></typeparam>
/// <param name="item"></param>
/// <param name="resultSelector"></param>
/// <returns></returns>
[SuppressMessage("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "item", Justification = "Microsoft: The method is being used to represent a method signature")]
[SuppressMessage("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "resultSelector", Justification = "Microsoft: The method is being used to represent a method signature")]
public static TResult Update<TEntity, TResult>(TEntity item, Func<TEntity, TResult> resultSelector) {
throw new NotImplementedException();
}
/// <summary>
/// The method signature used to encode an Update command.
/// The method will throw a NotImplementedException if called directly.
/// </summary>
/// <typeparam name="TEntity"></typeparam>
/// <param name="item"></param>
/// <param name="check"></param>
/// <returns></returns>
[SuppressMessage("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "item", Justification = "Microsoft: The method is being used to represent a method signature")]
[SuppressMessage("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "check", Justification = "Microsoft: The method is being used to represent a method signature")]
public static int Update<TEntity>(TEntity item, Func<TEntity, bool> check) {
throw new NotImplementedException();
}
/// <summary>
/// The method signature used to encode an Update command.
/// The method will throw a NotImplementedException if called directly.
/// </summary>
/// <typeparam name="TEntity"></typeparam>
/// <param name="item"></param>
/// <returns></returns>
[SuppressMessage("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "item", Justification = "Microsoft: The method is being used to represent a method signature")]
public static int Update<TEntity>(TEntity item) {
throw new NotImplementedException();
}
/// <summary>
/// The method signature used to encode a Delete command.
/// The method will throw a NotImplementedException if called directly.
/// </summary>
/// <typeparam name="TEntity"></typeparam>
/// <param name="item"></param>
/// <param name="check"></param>
/// <returns></returns>
[SuppressMessage("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "item", Justification = "Microsoft: The method is being used to represent a method signature")]
[SuppressMessage("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "check", Justification = "Microsoft: The method is being used to represent a method signature")]
public static int Delete<TEntity>(TEntity item, Func<TEntity, bool> check) {
throw new NotImplementedException();
}
/// <summary>
/// The method signature used to encode a Delete command.
/// The method will throw a NotImplementedException if called directly.
/// </summary>
/// <typeparam name="TEntity"></typeparam>
/// <param name="item"></param>
/// <returns></returns>
[SuppressMessage("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "item", Justification = "Microsoft: The method is being used to represent a method signature")]
public static int Delete<TEntity>(TEntity item) {
throw new NotImplementedException();
}
}
}
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