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 AttributeIndexValueIterator extends SortedKeyValueIterator[Key, Value] with LazyLogging

   

   Runs at the bottom of the iterator stack - takes the index simple feature type and adds the value from the row key

4. abstract class BaseAggregatingIterator[T <: AnyRef { ... /* 2 definitions in type refinement */ }] extends SortedKeyValueIterator[Key, Value] with AggregatingScan[T] with DeduplicatingScan[T]

   

   Aggregating iterator - only works on kryo-encoded features

5. class BinAggregatingIterator extends BaseAggregatingIterator[ByteBufferResult] with BinAggregatingScan

   

   Iterator that computes and aggregates 'bin' entries

6. trait DeduplicatingScan[T <: AnyRef { ... /* 2 definitions in type refinement */ }] extends AggregatingScan[T]

   

7. class DtgAgeOffIterator extends AgeOffIterator with DtgAgeOffFilter

   

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

8. sealed trait IteratorChoice extends AnyRef

   

9. case class IteratorConfig(iterator: IteratorChoice, hasTransformOrFilter: Boolean, transformCoversFilter: Boolean) extends Product with Serializable

   

10. class KryoAttributeKeyValueIterator 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

11. abstract class KryoLazyAggregatingIterator[T <: AnyRef { ... /* 2 definitions in type refinement */ }] extends SortedKeyValueIterator[Key, Value]

    

    Aggregating iterator - only works on kryo-encoded features

12. class KryoLazyDensityIterator extends BaseAggregatingIterator[DensityResult] with DensityScan

    

    Density iterator - only works on kryo-encoded features

13. class KryoLazyFilterTransformIterator 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.

14. class KryoLazyMapAggregatingIterator extends KryoLazyAggregatingIterator[Map[AnyRef, Int]]

    

15. class KryoLazyStatsIterator extends BaseAggregatingIterator[Stat] 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)

16. class KryoVisibilityRowEncoder extends RowEncodingIterator

    

    Assumes cq are byte-encoded attribute number

17. class PrecomputedBinAggregatingIterator extends BinAggregatingIterator

    

    Aggregates bins that have already been computed as accumulo data values

18. class ProjectVersionIterator extends SortedKeyValueIterator[Key, Value]

    

19. class Z2DensityIterator extends KryoLazyDensityIterator

    

    Density iterator that weights hits based on z2 schema

20. class Z2Iterator extends SortedKeyValueIterator[Key, Value]

    

21. class Z3DensityIterator extends KryoLazyDensityIterator

    

    Density iterator that weights hits based on z3 schema

22. class Z3Iterator extends SortedKeyValueIterator[Key, Value]