/// <summary>
/// Initializes a new instance of the PersistentDictionaryCursor class.
/// </summary>
/// <param name="instance">The instance to use.</param>
/// <param name="database">The database to open.</param>
/// <param name="converters">ESENT conversion functions.</param>
/// <param name="config">The database meta-data config.</param>
public PersistentDictionaryCursor(
Instance instance,
string database,
PersistentDictionaryConverters <TKey, TValue> converters,
IPersistentDictionaryConfig config)
{
this.instance = instance;
this.converters = converters;
this.config = config;
this.database = database;
Api.JetBeginSession(this.instance, out this.sesid, String.Empty, String.Empty);
this.AttachDatabase();
//try
//{
// this.AttachDatabase();
//}
//catch (EsentPrimaryIndexCorruptedException)
//{
// this.RetryAttachDatabase();
//}
//catch (EsentSecondaryIndexCorruptedException)
//{
// this.RetryAttachDatabase();
//}
}
/// <summary>
/// Initializes a new instance of the <see cref="PersistentDictionaryCursorCache{TKey,TValue}"/>
/// class.
/// </summary>
/// <param name="instance">The ESENT instance to use when opening a cursor.</param>
/// <param name="database">The database to open the cursors on.</param>
/// <param name="converters">The converters the cursors should use.</param>
/// <param name="config">The configuration for the cursors.</param>
public PersistentDictionaryCursorCache(
Instance instance,
string database,
PersistentDictionaryConverters <TKey, TValue> converters,
IPersistentDictionaryConfig config)
{
this.instance = instance;
this.converters = converters;
this.config = config;
this.database = database;
this.cursors = new PersistentDictionaryCursor <TKey, TValue> [MaxCachedCursors];
}
/// <summary>
/// Initializes a new instance of the PersistentDictionaryCursor class.
/// </summary>
/// <param name="instance">The instance to use.</param>
/// <param name="database">The database to open.</param>
/// <param name="converters">ESENT conversion functions.</param>
/// <param name="config">The database meta-data config.</param>
public PersistentDictionaryCursor(
Instance instance,
string database,
PersistentDictionaryConverters <TKey, TValue> converters,
IPersistentDictionaryConfig config)
{
this.instance = instance;
this.converters = converters;
this.config = config;
this.database = database;
Api.JetBeginSession(this.instance, out this.sesid, String.Empty, String.Empty);
this.AttachDatabase();
}
/// <summary>
/// Initializes a new instance of the PersistentDictionary class.
/// </summary>
/// <param name="directory">
/// The directory to create the database in.
/// </param>
public PersistentDictionary(string directory)
{
if (null == directory)
{
throw new ArgumentNullException("directory");
}
Globals.Init();
this.converters = new PersistentDictionaryConverters <TKey, TValue>();
this.config = new PersistentDictionaryConfig();
this.databaseDirectory = directory;
this.databasePath = Path.Combine(directory, this.config.Database);
this.updateLocks = new object[NumUpdateLocks];
for (int i = 0; i < this.updateLocks.Length; ++i)
{
this.updateLocks[i] = new object();
}
this.instance = new Instance(Guid.NewGuid().ToString());
this.instance.Parameters.SystemDirectory = directory;
this.instance.Parameters.LogFileDirectory = directory;
this.instance.Parameters.TempDirectory = directory;
// If the database has been moved while inconsistent recovery
// won't be able to find the database (logfiles contain the
// absolute path of the referenced database). Set this parameter
// to indicate a directory which contains any databases that couldn't
// be found by recovery.
this.instance.Parameters.AlternateDatabaseRecoveryDirectory = directory;
this.instance.Parameters.CreatePathIfNotExist = true;
this.instance.Parameters.BaseName = this.config.BaseName;
this.instance.Parameters.EnableIndexChecking = false; // TODO: fix unicode indexes
this.instance.Parameters.CircularLog = true;
this.instance.Parameters.CheckpointDepthMax = 64 * 1024 * 1024;
this.instance.Parameters.LogFileSize = 1024; // 1MB logs
this.instance.Parameters.LogBuffers = 1024; // buffers = 1/2 of logfile
this.instance.Parameters.MaxTemporaryTables = 0;
this.instance.Parameters.MaxVerPages = 1024;
this.instance.Parameters.NoInformationEvent = true;
this.instance.Parameters.WaypointLatency = 1;
this.instance.Parameters.MaxSessions = 256;
this.instance.Parameters.MaxOpenTables = 256;
InitGrbit grbit = EsentVersion.SupportsWindows7Features
? Windows7Grbits.ReplayIgnoreLostLogs
: InitGrbit.None;
this.instance.Init(grbit);
try
{
if (!File.Exists(this.databasePath))
{
this.CreateDatabase(this.databasePath);
}
else
{
this.CheckDatabaseMetaData(this.databasePath);
}
this.cursors = new PersistentDictionaryCursorCache <TKey, TValue>(
this.instance, this.databasePath, this.converters, this.config);
}
catch (Exception)
{
// We have failed to initialize for some reason. Terminate
// the instance.
this.instance.Term();
throw;
}
}
