Examples of com.salesforce.phoenix.schema.tuple.Tuple

Package com.salesforce.phoenix.schema.tuple

Examples of com.salesforce.phoenix.schema.tuple.Tuple

com.salesforce.phoenix.schema.tuple.Tuple
Interface representing an ordered list of KeyValues returned as the result of a query. Each tuple represents a row (i.e. all its KeyValues will have the same key), and each KeyValue represents a column value. @author jtaylor @since 0.1


    private PeekingResultIterator currentIterator() throws SQLException {
        List<PeekingResultIterator> iterators = getIterators();
        while (index < iterators.size()) {
            PeekingResultIterator iterator = iterators.get(index);
            Tuple r = iterator.peek();
            if (r != null) {
                return iterator;
            }
            iterator.close();
            index++;

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    @Override
    public Tuple next() throws SQLException {
        Iterator<ResultEntry> iterator = getResultIterator();
        if (iterator.hasNext()) {
            ResultEntry entry = iterator.next();
            Tuple tuple = entry.getResult();
            aggregate(tuple);
            return tuple;
        }
        resultIterator = Iterators.emptyIterator();
        return null;

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            return current != null;
        }


        @Override
        public Tuple next() {
            Tuple next = nextOrNull();
            if (next == null) {
                throw new NoSuchElementException();
            }
            return next;
        }

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        public Tuple nextOrNull() {
            if (current == null) {
                return null;
            }
            Tuple next = current;
            advance();
            return next;
        }

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            int vIntValLength = WritableUtils.getVIntSize(keyLength);
            KeyValue keyValue =
                    KeyValueUtil.newKeyValue(ptr.get(), ptr.getOffset(), ptr.getLength(),
                        QueryConstants.SINGLE_COLUMN_FAMILY, QueryConstants.SINGLE_COLUMN,
                        QueryConstants.AGG_TIMESTAMP, data, vIntKeyLength + keyLength + vIntValLength, valueLength);
            Tuple result = new SingleKeyValueTuple(keyValue);
            TupleUtil.getAggregateValue(result, ptr);
            KeyValueSchema schema = aggregators.getValueSchema();
            ValueBitSet tempValueSet = ValueBitSet.newInstance(schema);
            tempValueSet.clear();
            tempValueSet.or(ptr);

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     *  We only need to call startRegionOperation and closeRegionOperation when
     *  getting the first Tuple (which forces running through the entire region)
     *  since after this everything is held in memory
     */
    private RegionScanner getTopNScanner(final ObserverContext<RegionCoprocessorEnvironment> c, final RegionScanner s, final OrderedResultIterator iterator, ImmutableBytesWritable tenantId) throws Throwable {
        final Tuple firstTuple;
        TenantCache tenantCache = GlobalCache.getTenantCache(c.getEnvironment(), tenantId);
        long estSize = iterator.getEstimatedByteSize();
        final MemoryChunk chunk = tenantCache.getMemoryManager().allocate(estSize);
        final HRegion region = c.getEnvironment().getRegion();
        region.startRegionOperation();

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com.salesforce.phoenix.cache.aggcache.SpillManager

com.salesforce.phoenix.compile.DeleteCompiler

com.salesforce.phoenix.compile.MutatingParallelIteratorFactory

com.salesforce.phoenix.compile.PostDDLCompiler

com.salesforce.phoenix.compile.UpsertCompiler

com.salesforce.phoenix.coprocessor.ScanRegionObserver

com.salesforce.phoenix.iterate.ConcatResultIterator

com.salesforce.phoenix.iterate.DistinctAggregatingResultIterator

com.salesforce.phoenix.iterate.FilterAggregatingResultIterator

com.salesforce.phoenix.iterate.FilterResultIterator

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