/// <summary>
/// Searches the shared and pooled connector lists for a
/// matching connector object or creates a new one.
/// </summary>
/// <param name="provider">Provider requested to connect to the database server</param>
/// <param name="Shared">Allows multiple connections on a single connector. </param>
/// <returns>A pooled connector object.</returns>
internal Connector RequestConnector(IProvider provider, bool Shared)
{
// if a shared connector is requested then the Shared
// Connector List is searched first:
if (Shared)
{
foreach (Connector Connector in SharedConnectors)
{
if (Connector.Provider.ConnectionID == provider.ConnectionID)
{
// Bingo!
// Return the shared connector to caller.
// The connector is already in use.
Connector._ShareCount++;
return Connector;
}
}
}
// if a shared connector could not be found or a
// nonshared connector is requested, then the pooled
// (unused) connectors are beeing searched.
foreach (Connector Connector in PooledConnectors)
{
if (Connector.Provider.ConnectionID == provider.ConnectionID)
{
// Bingo!
// Remove the Connector from the pooled connectors list.
PooledConnectors.Remove(Connector);
// Make the connector shared if requested
if (Connector.Shared = Shared)
{
SharedConnectors.Add(Connector);
Connector._ShareCount = 1;
}
// done...
Connector.InUse = true;
return Connector;
}
}
// No suitable connector found, so create new one
Connector NewConnector = new Connector(provider, Shared);
// Shared connections must be added to the shared
// connectors list
if (Shared)
{
SharedConnectors.Add(NewConnector);
NewConnector._ShareCount = 1;
}
// and then returned to the caller
NewConnector.InUse = true;
NewConnector.Open();
return NewConnector;
}
/// <summary>
/// Searches the shared and pooled connector lists for a
/// matching connector object or creates a new one.
/// </summary>
/// <param name="entity">Entity to be pooled.</param>
/// <param name="Shared">Allows multiple connections on a single connector. </param>
/// <returns>A pooled connector object.</returns>
internal Connector RequestConnector(IFileBased entity, bool Shared)
{
// if a shared connector is requested then the Shared
// Connector List is searched first:
if (Shared)
{
foreach (Connector connector in this.SharedConnectors)
{
if (entity.Path == connector.PooledEntity.Path)
{
// Bingo!
// Return the shared connector to caller.
// The connector is already in use.
connector._ShareCount++;
return connector;
}
}
}
// if a shared connector could not be found or a
// nonshared connector is requested, then the pooled
// (unused) connectors are beeing searched.
foreach (Connector connector in this.PooledConnectors)
{
if (connector.PooledEntity.Path == entity.Path)
{ // Bingo!
// Remove the Connector from the pooled connectors list.
this.PooledConnectors.Remove(connector);
// Make the connector shared if requested
if (connector.Shared = Shared)
{
this.SharedConnectors.Add(connector);
connector._ShareCount = 1;
}
// done...
connector.InUse = true;
return connector;
}
}
// No suitable connector found, so create new one
Connector NewConnector = new Connector(entity, Shared);
// Shared connections must be added to the shared
// connectors list
if (Shared)
{
this.SharedConnectors.Add(NewConnector);
NewConnector._ShareCount = 1;
}
// and then returned to the caller
NewConnector.InUse = true;
NewConnector.Open();
return NewConnector;
}
