iterators

Type Members

1. class AgeOffIterator extends Filter with AgeOffFilter

   

   Accumulo implementation of AgeOffFilter, based on an expiry.

   Accumulo implementation of AgeOffFilter, based on an expiry. Features with a timestamp older than the expiry will be aged off.

   This iterator can be configured on scan, minc, and majc to age off data

   Age off iterators can be stacked but this may have performance implications

2. class ArrowIterator extends BaseAggregatingIterator[ArrowAggregate] with ArrowScan

   

3. class AttributeKeyValueIterator extends SortedKeyValueIterator[Key, Value] with LazyLogging

   

   Iterator that operates on kryo encoded attribute index rows.

   Iterator that operates on kryo encoded attribute index rows. It will modify the value (kryo encoded simple feature) by setting the attribute from the row key.

   It is expected to run *after* the normal iterator stack - thus the key value received in getTopValue will be the already transformed feature result, with a null value for the attribute in question. This iterator will set the attribute value based on the row, then re-serialize the feature

4. abstract class BaseAggregatingIterator[T <: Result] extends SortedKeyValueIterator[Key, Value] with AggregatingScan[T]

   

   Aggregating iterator - only works on kryo-encoded features

5. class BinAggregatingIterator extends BaseAggregatingIterator[ResultCallback] with BinAggregatingScan

   

   Iterator that computes and aggregates 'bin' entries

6. class DensityIterator extends BaseAggregatingIterator[DensityScanResult] with DensityScan

   

   Density iterator - only works on kryo-encoded features

7. class DtgAgeOffIterator extends AgeOffIterator with DtgAgeOffFilter

   

   Age off data based on the dtg value stored in the SimpleFeature

8. class FilterTransformIterator extends SortedKeyValueIterator[Key, Value] with SamplingIterator with LazyLogging

   

   Iterator that operates on kryo encoded values.

   Iterator that operates on kryo encoded values. It will: a) evaluate the feature against an optional filter b) apply an optional transform

   Uses lazy evaluation of attributes and binary transforms when possible.

9. class KryoVisibilityRowEncoder extends RowEncodingIterator

   

   Assumes cq are byte-encoded attribute number

10. class ProjectVersionIterator extends SortedKeyValueIterator[Key, Value]

    

11. abstract class RowFilterIterator[T <: RowFilter] extends SortedKeyValueIterator[Key, Value]

    

    Abstract base class for filtering iterators.

    Abstract base class for filtering iterators. Implementations must have a no-arg default constructor, used when deep copying an instance.

    T

    filter type bound

12. class S2Iterator extends RowFilterIterator[S2Filter]

    

13. class S3Iterator extends RowFilterIterator[S3Filter]

    

14. class StatsIterator extends BaseAggregatingIterator[StatResult] with StatsScan

    

    Reads simple features and observe them with a Stat server-side

    Reads simple features and observe them with a Stat server-side

    Only works with z3IdxStrategy for now (queries that date filters)

15. class Z2Iterator extends RowFilterIterator[Z2Filter]

    

16. class Z3Iterator extends RowFilterIterator[Z3Filter]