Package | Description |
---|---|
org.apache.accumulo.core.iterators | |
org.apache.accumulo.core.iterators.system | |
org.apache.accumulo.core.iterators.user |
Modifier and Type | Class and Description |
---|---|
class |
AggregatingIterator
Deprecated.
since 1.4, replaced by
Combiner |
class |
Combiner
A SortedKeyValueIterator that combines the Values for different versions (timestamp) of a Key
within a row into a single Value.
|
class |
DebugIterator |
class |
Filter
A SortedKeyValueIterator that filters entries from its source iterator.
|
class |
FirstEntryInRowIterator |
class |
LongCombiner
A TypedValueCombiner that translates each Value to a Long before reducing, then encodes the
reduced Long back to a Value.
|
class |
OrIterator
An iterator that provides a sorted-iteration of column qualifiers for a set of column families in
a row.
|
class |
SortedKeyIterator |
class |
TypedValueCombiner<V>
A Combiner that decodes each Value to type V before reducing, then encodes the result of
typedReduce back to Value.
|
Modifier and Type | Class and Description |
---|---|
class |
SampleIterator |
Modifier and Type | Class and Description |
---|---|
class |
AgeOffFilter
A filter that ages off key/value pairs based on the Key's timestamp.
|
class |
BigDecimalCombiner
A family of combiners that treat values as BigDecimals, encoding and decoding using the built-in
BigDecimal String input/output functions.
|
static class |
BigDecimalCombiner.BigDecimalMaxCombiner |
static class |
BigDecimalCombiner.BigDecimalMinCombiner |
static class |
BigDecimalCombiner.BigDecimalSummingCombiner |
class |
CfCqSliceFilter
Filters key/value pairs for a range of column families and a range of column qualifiers.
|
class |
CfCqSliceSeekingFilter
Filters key/value pairs for a range of column families and a range of column qualifiers.
|
class |
ColumnAgeOffFilter
A filter that ages off key/value pairs based on the Key's column and timestamp.
|
class |
ColumnSliceFilter |
class |
GrepIterator
This iterator provides exact string matching.
|
class |
LargeRowFilter
This iterator suppresses rows that exceed a specified number of columns.
|
class |
MaxCombiner
A Combiner that interprets Values as Longs and returns the largest Long among them.
|
class |
MinCombiner
A Combiner that interprets Values as Longs and returns the smallest Long among them.
|
class |
RegExFilter
A Filter that matches entries based on Java regular expressions.
|
class |
ReqVisFilter
A Filter that matches entries with a non-empty ColumnVisibility.
|
class |
RowEncodingIterator
The RowEncodingIterator is designed to provide row-isolation so that queries see mutations as
atomic.
|
class |
SummingArrayCombiner
A Combiner that interprets Values as arrays of Longs and returns an array of element-wise sums.
|
class |
SummingCombiner
A Combiner that interprets Values as Longs and returns their sum.
|
class |
TimestampFilter
A Filter that matches entries whose timestamps fall within a range.
|
class |
TransformingIterator
The TransformingIterator allows portions of a key (except for the row) to be transformed.
|
class |
VersioningIterator |
class |
VisibilityFilter
A SortedKeyValueIterator that filters based on ColumnVisibility.
|
class |
WholeColumnFamilyIterator
The WholeColumnFamilyIterator is designed to provide row/cf-isolation so that queries see
mutations as atomic.
|
class |
WholeRowIterator
The WholeRowIterator is designed to provide row-isolation so that queries see mutations as
atomic.
|
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