Modifier and Type | Interface and Description |
---|---|
interface |
FileSKVIterator |
Modifier and Type | Class and Description |
---|---|
static class |
BloomFilterLayer.Reader |
Modifier and Type | Class and Description |
---|---|
static class |
MapFileOperations.RangeIterator |
Modifier and Type | Class and Description |
---|---|
static class |
RFile.Reader |
Modifier and Type | Interface and Description |
---|---|
interface |
SortedKeyValueIterator<K extends org.apache.hadoop.io.WritableComparable<?>,V extends org.apache.hadoop.io.Writable>
An iterator that supports iterating over key and value pairs.
|
Modifier and Type | Class and Description |
---|---|
class |
AggregatingIterator
Deprecated.
since 1.4, replaced by
Combiner |
class |
ColumnFamilyCounter |
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 |
DevNull
An iterator that is useful testing...
|
class |
FamilyIntersectingIterator
Deprecated.
since 1.4, replaced by
IndexedDocIterator |
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 |
ServerFilter
An optimized version of
Filter . |
class |
ServerSkippingIterator
An optimized version of
SkippingIterator . |
class |
ServerWrappingIterator
An optimized version of
WrappingIterator . |
class |
SkippingIterator
Every call to
SkippingIterator.next() and SkippingIterator.seek(Range, Collection, boolean) calls the parent's
implementation and then calls the implementation's SkippingIterator.consume() . |
class |
SortedKeyIterator |
class |
SortedMapIterator
A simple iterator over a Java SortedMap
Note that this class is intended as an in-memory replacement for RFile$Reader, so its behavior
reflects the same assumptions; namely, that this iterator is not responsible for respecting the
columnFamilies passed into seek().
|
class |
SynchronizedServerFilter
A SortedKeyValueIterator similar to
ServerFilter but
with the implemented methods marked as synchronized. |
class |
TypedValueCombiner<V>
A Combiner that decodes each Value to type V before reducing, then encodes the result of
typedReduce back to Value.
|
class |
WrappingIterator
A convenience class for implementing iterators that select, but do not modify, entries read from
a source iterator.
|
Modifier and Type | Interface and Description |
---|---|
interface |
InterruptibleIterator |
Modifier and Type | Class and Description |
---|---|
class |
ColumnFamilySkippingIterator |
class |
ColumnQualifierFilter |
class |
CountingIterator |
class |
DeletingIterator |
class |
EmptyIterator |
class |
HeapIterator
Constructs a
PriorityQueue of multiple SortedKeyValueIterators. |
class |
LocalityGroupIterator |
class |
MapFileIterator |
class |
MultiIterator
An iterator capable of iterating over other iterators in sorted order.
|
class |
SampleIterator |
class |
SequenceFileIterator |
class |
SourceSwitchingIterator
A SortedKeyValueIterator which presents a view over some section of data, regardless of whether
or not it is backed by memory (InMemoryMap) or an RFile (InMemoryMap that was minor compacted to
a file).
|
class |
StatsIterator |
class |
SynchronizedIterator<K extends org.apache.hadoop.io.WritableComparable<?>,V extends org.apache.hadoop.io.Writable>
Wraps a SortedKeyValueIterator so that all of its methods are synchronized.
|
class |
TimeSettingIterator |
class |
VisibilityFilter
A SortedKeyValueIterator that filters based on ColumnVisibility and optimized for use with system
iterators.
|
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 |
IndexedDocIterator
This iterator facilitates document-partitioned indexing.
|
class |
IntersectingIterator
This iterator facilitates document-partitioned indexing.
|
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 |
RowDeletingIterator
An iterator for deleting whole rows.
|
class |
RowEncodingIterator
The RowEncodingIterator is designed to provide row-isolation so that queries see mutations as
atomic.
|
class |
RowFilter
This iterator makes it easy to select rows that meet a given criteria.
|
class |
SeekingFilter
Base class for filters that can skip over key-value pairs which do not match their filter
predicate.
|
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 |
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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