Examples of org.datanucleus.store.query.AbstractQueryResult

org.datanucleus.store.query.AbstractQueryResult
Abstract representation of a QueryResult. Provides default implementations of the majority of list methods that we aren't likely to be providing in a concrete query result. This class is used where your query implementation needs to return a wrapper to a List so that you can intercept calls and convert a row of the results into object(s), to avoid full instantiation at creation. Supports the following query extensions :-
- datanucleus.query.resultSizeMethod The method used to find the size of the result set.
- datanucleus.query.loadResultsAtCommit Whether to load all results when the connection is closing. Has no effect if caching is not used.

      List<T> results = (List<T>) DatastoreQuery.newStreamingQueryResultForEntities(
          queryResultIterable, func, endCursor, query);


      if (results instanceof AbstractQueryResult) {
        // Lazy loading results : add listener to the connection so we can get a callback when the connection is flushed.
        final AbstractQueryResult qr = (AbstractQueryResult)results;
        ManagedConnectionResourceListener listener = new ManagedConnectionResourceListener() {
          public void managedConnectionPreClose() {
            // Disconnect the query from this ManagedConnection (read in unread rows etc)
            qr.disconnect();
          }
          public void managedConnectionPostClose() {}
          public void resourcePostClose() {
            mconn.removeListener(this);
          }
          public void transactionFlushed() {}
          public void transactionPreClose() {
            // Disconnect the query from this ManagedConnection (read in unread rows etc)
            qr.disconnect();
          }
        };
        mconn.addListener(listener);
        qr.addConnectionListener(listener);
      }
      return results;
    } finally {
      mconn.release();
    }

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            resultInMemory, resultClass != null, false);
      }


      if (results instanceof AbstractQueryResult) {
        // Lazy loading results : add listener to the connection so we can get a callback when the connection is flushed.
        final AbstractQueryResult qr = (AbstractQueryResult)results;
        final ManagedConnection mconn = getStoreManager().getConnection(ec);
        ManagedConnectionResourceListener listener = new ManagedConnectionResourceListener() {
          public void managedConnectionPreClose() {
            // Disconnect the query from this ManagedConnection (read in unread rows etc)
            qr.disconnect();
          }
          public void managedConnectionPostClose() {}
          public void resourcePostClose() {
            mconn.removeListener(this);
          }
          public void transactionFlushed() {}
          public void transactionPreClose() {
            // Disconnect the query from this ManagedConnection (read in unread rows etc)
            qr.disconnect();
          }
        };
        mconn.addListener(listener);
        qr.addConnectionListener(listener);
      }
    }


    if (NucleusLogger.QUERY.isDebugEnabled()) {
      NucleusLogger.QUERY.debug(LOCALISER.msg("021074", "JPQL",

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            resultInMemory, resultClass != null, false);
      }


      if (results instanceof AbstractQueryResult) {
        // Lazy loading results : add listener to the connection so we can get a callback when the connection is flushed.
        final AbstractQueryResult qr = (AbstractQueryResult)results;
        final ManagedConnection mconn = getStoreManager().getConnection(ec);
        ManagedConnectionResourceListener listener = new ManagedConnectionResourceListener() {
          public void managedConnectionPreClose() {
            // Disconnect the query from this ManagedConnection (read in unread rows etc)
            qr.disconnect();
          }
          public void managedConnectionPostClose() {}
          public void resourcePostClose() {
            mconn.removeListener(this);
          }
          public void transactionFlushed() {}
          public void transactionPreClose() {
            // Disconnect the query from this ManagedConnection (read in unread rows etc)
            qr.disconnect();
          }
        };
        mconn.addListener(listener);
        qr.addConnectionListener(listener);
      }
    }


    if (NucleusLogger.QUERY.isDebugEnabled()) {
      NucleusLogger.QUERY.debug(LOCALISER.msg("021074", "JDOQL", "" + (System.currentTimeMillis() - startTime)));

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