Examples of OrderedResultIterator

com.salesforce.phoenix.iterate.OrderedResultIterator
Result scanner that sorts aggregated rows by columns specified in the ORDER BY clause.
Note that currently the sort is entirely done in memory. @author syyang, jtaylor @since 0.1
org.apache.phoenix.iterate.OrderedResultIterator
Result scanner that sorts aggregated rows by columns specified in the ORDER BY clause.
Note that currently the sort is entirely done in memory. @since 0.1

Examples of com.salesforce.phoenix.iterate.OrderedResultIterator

        @Override
        public PeekingResultIterator newIterator(ResultIterator scanner) throws SQLException {
            Expression expression = RowKeyExpression.INSTANCE;
            OrderByExpression orderByExpression = new OrderByExpression(expression, false, true);
            int threshold = services.getProps().getInt(QueryServices.SPOOL_THRESHOLD_BYTES_ATTRIB, QueryServicesOptions.DEFAULT_SPOOL_THRESHOLD_BYTES);
            return new OrderedResultIterator(scanner, Collections.<OrderByExpression>singletonList(orderByExpression), threshold);
        }

View Full Code Here

Examples of com.salesforce.phoenix.iterate.OrderedResultIterator

                OrderByExpression orderByExpression = new OrderByExpression();
                orderByExpression.readFields(input);
                orderByExpressions.add(orderByExpression);
            }
            ResultIterator inner = new RegionScannerResultIterator(s);
            return new OrderedResultIterator(inner, orderByExpressions, thresholdBytes, limit >= 0 ? limit : null, estimatedRowSize);
        } catch (IOException e) {
            throw new RuntimeException(e);
        } finally {
            try {
                stream.close();

View Full Code Here

Examples of com.salesforce.phoenix.iterate.OrderedResultIterator

        RegionScanner innerScanner = s;
        if (p != null || j != null) {
            innerScanner = new HashJoinRegionScanner(s, p, j, tenantId, c.getEnvironment());
        }
        
        final OrderedResultIterator iterator = deserializeFromScan(scan,innerScanner);
        if (iterator == null) {
            return getWrappedScanner(c, innerScanner);
        }
        
        return getTopNScanner(c, innerScanner, iterator, tenantId);

View Full Code Here

Examples of org.apache.phoenix.iterate.OrderedResultIterator

        @Override
        public PeekingResultIterator newIterator(StatementContext context, ResultIterator scanner, Scan scan) throws SQLException {
            Expression expression = RowKeyExpression.INSTANCE;
            OrderByExpression orderByExpression = new OrderByExpression(expression, false, true);
            int threshold = services.getProps().getInt(QueryServices.SPOOL_THRESHOLD_BYTES_ATTRIB, QueryServicesOptions.DEFAULT_SPOOL_THRESHOLD_BYTES);
            return new OrderedResultIterator(scanner, Collections.<OrderByExpression>singletonList(orderByExpression), threshold);
        }

View Full Code Here

Examples of org.apache.phoenix.iterate.OrderedResultIterator

                OrderByExpression orderByExpression = new OrderByExpression();
                orderByExpression.readFields(input);
                orderByExpressions.add(orderByExpression);
            }
            ResultIterator inner = new RegionScannerResultIterator(s);
            return new OrderedResultIterator(inner, orderByExpressions, thresholdBytes, limit >= 0 ? limit : null, estimatedRowSize);
        } catch (IOException e) {
            throw new RuntimeException(e);
        } finally {
            try {
                stream.close();

View Full Code Here

Examples of org.apache.phoenix.iterate.OrderedResultIterator

        RegionScanner innerScanner = s;
        if (p != null || j != null) {
            innerScanner = new HashJoinRegionScanner(s, p, j, tenantId, c.getEnvironment());
        }
        
        final OrderedResultIterator iterator = deserializeFromScan(scan,innerScanner);
        List<KeyValueColumnExpression> arrayKVRefs = new ArrayList<KeyValueColumnExpression>();
        Expression[] arrayFuncRefs = deserializeArrayPostionalExpressionInfoFromScan(
                scan, innerScanner, arrayKVRefs);
        innerScanner = getWrappedScanner(c, innerScanner, arrayKVRefs, arrayFuncRefs);
        if (iterator == null) {

View Full Code Here

Examples of org.apache.phoenix.iterate.OrderedResultIterator

        @Override
        public PeekingResultIterator newIterator(ResultIterator scanner) throws SQLException {
            Expression expression = RowKeyExpression.INSTANCE;
            OrderByExpression orderByExpression = new OrderByExpression(expression, false, true);
            int threshold = services.getProps().getInt(QueryServices.SPOOL_THRESHOLD_BYTES_ATTRIB, QueryServicesOptions.DEFAULT_SPOOL_THRESHOLD_BYTES);
            return new OrderedResultIterator(scanner, Collections.<OrderByExpression>singletonList(orderByExpression), threshold);
        }

View Full Code Here

Examples of org.apache.phoenix.iterate.OrderedResultIterator

                OrderByExpression orderByExpression = new OrderByExpression();
                orderByExpression.readFields(input);
                orderByExpressions.add(orderByExpression);
            }
            ResultIterator inner = new RegionScannerResultIterator(s);
            return new OrderedResultIterator(inner, orderByExpressions, thresholdBytes, limit >= 0 ? limit : null, estimatedRowSize);
        } catch (IOException e) {
            throw new RuntimeException(e);
        } finally {
            try {
                stream.close();

View Full Code Here

Examples of org.apache.phoenix.iterate.OrderedResultIterator

            return s;
        }
        
        final ScanProjector p = ScanProjector.deserializeProjectorFromScan(scan);
        final HashJoinInfo j = HashJoinInfo.deserializeHashJoinFromScan(scan);
        final OrderedResultIterator iterator = deserializeFromScan(scan,s);
        final ImmutableBytesWritable tenantId = ScanUtil.getTenantId(scan);
        
        RegionScanner innerScanner = s;
        if (p != null || j != null) {
            innerScanner = new HashJoinRegionScanner(s, p, j, tenantId, c.getEnvironment());

View Full Code Here

Examples of org.apache.phoenix.iterate.OrderedResultIterator

                OrderByExpression orderByExpression = new OrderByExpression();
                orderByExpression.readFields(input);
                orderByExpressions.add(orderByExpression);
            }
            ResultIterator inner = new RegionScannerResultIterator(s);
            return new OrderedResultIterator(inner, orderByExpressions, thresholdBytes, limit >= 0 ? limit : null, estimatedRowSize);
        } catch (IOException e) {
            throw new RuntimeException(e);
        } finally {
            try {
                stream.close();

View Full Code Here

0 1

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.