Examples with Tuple org.apache.phoenix.schema.tuple.Tuple used on opensource projects

Example 46 with Tuple

use of org.apache.phoenix.schema.tuple.Tuple in project phoenix by apache.

the class ConcatResultIterator method currentIterator.

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++;
    }
    return EMPTY_ITERATOR;
}

Example 47 with Tuple

use of org.apache.phoenix.schema.tuple.Tuple in project phoenix by apache.

the class DistinctAggregatingResultIterator method getResultIterator.

private Iterator<ResultEntry> getResultIterator() throws SQLException {
    if (resultIterator != null) {
        return resultIterator;
    }
    // TODO: size?
    Set<ResultEntry> entries = Sets.<ResultEntry>newHashSet();
    try {
        for (Tuple result = delegate.next(); result != null; result = delegate.next()) {
            ResultEntry entry = new ResultEntry(result);
            entries.add(entry);
        }
    } finally {
        delegate.close();
    }
    resultIterator = entries.iterator();
    return resultIterator;
}

Example 48 with Tuple

use of org.apache.phoenix.schema.tuple.Tuple in project phoenix by apache.

the class LookAheadResultIterator method next.

@Override
public Tuple next() throws SQLException {
    init();
    Tuple next = this.next;
    this.next = advance();
    return next;
}

Example 49 with Tuple

use of org.apache.phoenix.schema.tuple.Tuple in project phoenix by apache.

the class MaterializedComparableResultIterator method next.

@Override
public Tuple next() throws SQLException {
    Tuple next = delegate.next();
    this.current = delegate.peek();
    return next;
}

Example 50 with Tuple

use of org.apache.phoenix.schema.tuple.Tuple in project phoenix by apache.

the class MergeSortResultIterator method next.

@Override
public Tuple next() throws SQLException {
    MaterializedComparableResultIterator iterator = minIterator();
    if (iterator == null) {
        return null;
    }
    Tuple next = iterator.next();
    minHeap.poll();
    if (iterator.peek() != null) {
        minHeap.add(iterator);
    } else {
        iterator.close();
    }
    return next;
}