Exemplo n.º 1
0
        private QueryTask CreateFetchVersionTask(Key key)
        {
            var type         = key.TypeInfo;
            var provider     = type.Indexes.PrimaryIndex.GetQuery().Seek(key.Value);
            var execProvider = Session.Compile(provider);

            return(new QueryTask(execProvider, Session.GetLifetimeToken(), null));
        }
Exemplo n.º 2
0
 /// <inheritdoc/>
 public void Lock(LockMode lockMode, LockBehavior lockBehavior)
 {
     using (new ParameterContext().Activate()) {
         keyParameter.Value = Key.Value;
         object key = new Triplet <TypeInfo, LockMode, LockBehavior>(TypeInfo, lockMode, lockBehavior);
         Func <object, object> generator = tripletObj => {
             var       triplet = (Triplet <TypeInfo, LockMode, LockBehavior>)tripletObj;
             IndexInfo index   = triplet.First.Indexes.PrimaryIndex;
             var       query   = index.GetQuery()
                                 .Seek(() => keyParameter.Value)
                                 .Lock(() => triplet.Second, () => triplet.Third)
                                 .Select();
             return(Session.Compile(query));
         };
         var source    = (ExecutableProvider)Session.StorageNode.InternalQueryCache.GetOrAdd(key, generator);
         var recordSet = source.GetRecordSet(Session);
         recordSet.FirstOrDefault();
     }
 }
Exemplo n.º 3
0
        /// <inheritdoc/>
        public void Lock(LockMode lockMode, LockBehavior lockBehavior)
        {
            var parameterContext = new ParameterContext();

            parameterContext.SetValue(keyParameter, Key.Value);
            object key = new Triplet <TypeInfo, LockMode, LockBehavior>(TypeInfo, lockMode, lockBehavior);
            Func <object, object> generator = tripletObj => {
                var triplet = (Triplet <TypeInfo, LockMode, LockBehavior>)tripletObj;
                var index   = triplet.First.Indexes.PrimaryIndex;
                var query   = index.GetQuery()
                              .Seek(context => context.GetValue(keyParameter))
                              .Lock(() => triplet.Second, () => triplet.Third)
                              .Select();
                return(Session.Compile(query));
            };
            var source = (ExecutableProvider)Session.StorageNode.InternalQueryCache.GetOrAdd(key, generator);

            using var recordSetReader = source.GetRecordSetReader(Session, parameterContext);
            recordSetReader.MoveNext();
        }