Details
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Type:
Sub-task
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Status: Open
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Priority:
Major
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Resolution: Unresolved
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Affects Version/s: 0.14.1
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Fix Version/s: None
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Component/s: HBase Module
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Labels:None
Description
The HBase DaoView class has the following code to instantiate a writer:
EntityScanner<E> newEntityScanner() {
PartitionStrategy partitionStrategy = dataset.getDescriptor().getPartitionStrategy();
Iterable<MarkerRange> markerRanges = constraints.toKeyRanges(partitionStrategy);
// TODO: combine all ranges into a single reader
MarkerRange range = Iterables.getOnlyElement(markerRanges); // <------ assumes only one range
return dataset.getDao().getScanner(
toPartitionKey(range.getStart()), range.getStart().isInclusive(),
toPartitionKey(range.getEnd()), range.getEnd().isInclusive());
}
The code assumes that the constraints will convert to only one range, but it is easy to create a view that will have more than one. For example, using any with constraint that has more than one match will produce multiple ranges.