sharp-chat/SharpChat.Database.SQLite/SQLiteDatabaseCommand.cs

73 lines
2.4 KiB
C#

using System;
using System.Data.SQLite;
using System.Linq;
namespace SharpChat.Database.SQLite {
public class SQLiteDatabaseCommand : IDatabaseCommand {
public IDatabaseConnection Connection { get; }
private SQLiteCommand Command { get; }
public string CommandString => Command.CommandText;
public int CommandTimeout { get => Command.CommandTimeout; set => Command.CommandTimeout = value; }
public SQLiteDatabaseCommand(SQLiteDatabaseConnection conn, SQLiteCommand comm) {
Connection = conn ?? throw new ArgumentNullException(nameof(conn));
Command = comm ?? throw new ArgumentNullException(nameof(comm));
}
public IDatabaseParameter AddParameter(string name, object value)
=> new SQLiteDatabaseParameter(Command.Parameters.AddWithValue(name, value));
public IDatabaseParameter AddParameter(string name, DatabaseType type) {
SQLiteParameter param = Command.CreateParameter();
param.ParameterName = name;
param.DbType = SQLiteDatabaseParameter.MapType(type);
return new SQLiteDatabaseParameter(param);
}
public IDatabaseParameter AddParameter(IDatabaseParameter param) {
if(param is not SQLiteDatabaseParameter sqlParam)
throw new InvalidParameterClassTypeException();
Command.Parameters.Add(sqlParam.Parameter);
return sqlParam;
}
public void AddParameters(IDatabaseParameter[] @params) {
Command.Parameters.AddRange(@params.OfType<SQLiteDatabaseParameter>().Select(x => x.Parameter).ToArray());
}
public void ClearParameters() {
Command.Parameters.Clear();
}
public void Prepare() {
Command.Prepare();
}
public int Execute()
=> Command.ExecuteNonQuery();
public IDatabaseReader ExecuteReader()
=> new ADODatabaseReader(Command.ExecuteReader());
public object ExecuteScalar()
=> Command.ExecuteScalar();
private bool IsDisposed;
~SQLiteDatabaseCommand()
=> DoDispose();
public void Dispose() {
DoDispose();
GC.SuppressFinalize(this);
}
private void DoDispose() {
if(IsDisposed)
return;
IsDisposed = true;
Command.Dispose();
}
}
}