org.locationtech.geomesa.raster.iterators
IndexIterator
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package iterators
Returns a local estimate as to whether the current identifier is likely to be a duplicate.
Returns a local estimate as to whether the current identifier is likely to be a duplicate.
Because we set a limit on how many unique IDs will be preserved in the local cache, a TRUE response is always accurate, but a FALSE response may not be accurate. (That is, this cache allows for false- negatives, but no false-positives.) We accept this, because there is a final, client-side filter that will eliminate all duplicate IDs definitively. The purpose of the local cache is to reduce traffic through the remainder of the iterator/aggregator pipeline as quickly as possible.
False if this identifier is in the local cache; True otherwise
Advances the index-iterator to the next qualifying entry
Advances the index-iterator to the next qualifying entry
Subclasses should set top key and top value if the current row is valid to be returned
Subclasses should set top key and top value if the current row is valid to be returned
for index iterator - decode to eval filter
for index iterator - decode to eval filter
for index iterator - decode to eval filter, encode to apply transform
for index iterator - decode to eval filter, encode to apply transform
for index iterator - decode to eval filter, encode to apply transform
for index iterator - decode to eval filter, encode to apply transform
decode to eval filter
decode to eval filter
for index iterator - no eval, just return value
for index iterator - no eval, just return value
for index iterator - decode and encode to apply transform
for index iterator - decode and encode to apply transform
for index iterator - decode and encode to apply transform
for index iterator - decode and encode to apply transform
for index iterator - eval uniqueness
for index iterator - eval uniqueness
This is an Index Only Iterator, to be used in situations where the data records are not useful enough to pay the penalty of decoding when using the SpatioTemporalIntersectingIterator.
This iterator returns as its nextKey the key for the index. nextValue is the value for the INDEX, mapped into a SimpleFeature