MutexModel Class Reference
from PyKDE4.soprano import *
Inherits: Soprano.FilterModel → Soprano.Model → QObject
Namespace: Soprano::Util
Detailed Description
\class MutexModel mutexmodel.h Soprano/Util/MutexModel
Protect a Model for multiple calls in multi-threaded
applications.
In most cases one does not need to use this FilterModel since Models
created by Soprano.createModel and Soprano.Backend.createModel
are thread-safe. It may, however, come in handy for custom models.
- Author:
- Sebastian Trueg <trueg@kde.org>
Enumerations |
| ProtectionMode | { PlainMultiThreading, ReadWriteMultiThreading, ReadWriteSingleThreading } |
Methods |
| | __init__ (self, Soprano.Util.MutexModel.ProtectionMode mode, Soprano.Model parent=0) |
| Soprano.Error.ErrorCode | addStatement (self, Soprano.Statement statement) |
| bool | containsAnyStatement (self, Soprano.Statement statement) |
| bool | containsStatement (self, Soprano.Statement statement) |
| Soprano.QueryResultIterator | executeQuery (self, QString query, Soprano.Query.QueryLanguage language, QString userQueryLanguage=QString()) |
| bool | isEmpty (self) |
| Soprano.NodeIterator | listContexts (self) |
| Soprano.StatementIterator | listStatements (self, Soprano.Statement partial) |
| Soprano.Error.ErrorCode | removeAllStatements (self, Soprano.Statement statement) |
| Soprano.Error.ErrorCode | removeStatement (self, Soprano.Statement statement) |
| int | statementCount (self) |
Method Documentation
| __init__ |
( |
self, |
|
|
|
Soprano.Util.MutexModel.ProtectionMode |
mode, |
|
|
Soprano.Model |
parent=0 |
|
) |
|
|
|
Create a new MutexModel.
- Parameters:
-
- Parameters:
-
| parent | The parent Model to forward
the actual calls to.
|
| int statementCount |
( |
|
self ) |
|
Enumeration Documentation
In PlainMultiThreading mode only one action can be performed
at the same time. Calls block until the previous call is done.
- Warning:
- In this mode nesting iterators will result in a deadlock.
- Enumerator:
-
| PlainMultiThreading | |
| ReadWriteMultiThreading | |
| ReadWriteSingleThreading | |
KDE 4.3 PyKDE API Reference
