Modifier and Type | Interface and Description |
---|---|
interface |
AggregateCombiner<T>
AggregateCombiner is used to fold rollup aggregation results from serveral "rows" of different indexes during index
merging (see
IndexMerger ). |
Modifier and Type | Class and Description |
---|---|
class |
DoubleAggregateCombiner
Specialization of
AggregateCombiner for primitive double aggregations. |
class |
LongAggregateCombiner
Specialization of
AggregateCombiner for primitive long aggregations. |
class |
LongSumAggregateCombiner |
class |
ObjectAggregateCombiner<T>
Specialization of
AggregateCombiner for object aggregations. |
Constructor and Description |
---|
TimestampAggregator(String name,
BaseObjectColumnValueSelector selector,
TimestampSpec timestampSpec,
Comparator<Long> comparator,
Long initValue) |
TimestampBufferAggregator(BaseObjectColumnValueSelector selector,
TimestampSpec timestampSpec,
Comparator<Long> comparator,
Long initValue) |
Constructor and Description |
---|
JavaScriptAggregator(List<BaseObjectColumnValueSelector> selectorList,
io.druid.query.aggregation.JavaScriptAggregator.ScriptAggregator script) |
JavaScriptBufferAggregator(List<BaseObjectColumnValueSelector> selectorList,
io.druid.query.aggregation.JavaScriptAggregator.ScriptAggregator script) |
Modifier and Type | Class and Description |
---|---|
class |
HyperLogLogCollectorAggregateCombiner |
Constructor and Description |
---|
SketchAggregator(BaseObjectColumnValueSelector selector,
int size) |
SketchBufferAggregator(BaseObjectColumnValueSelector selector,
int size,
int maxIntermediateSize) |
Constructor and Description |
---|
ApproximateHistogramFoldingAggregator(BaseObjectColumnValueSelector<ApproximateHistogram> selector,
int resolution,
float lowerLimit,
float upperLimit) |
ApproximateHistogramFoldingBufferAggregator(BaseObjectColumnValueSelector<ApproximateHistogram> selector,
int resolution,
float lowerLimit,
float upperLimit) |
Constructor and Description |
---|
HyperUniquesAggregator(BaseObjectColumnValueSelector selector) |
HyperUniquesBufferAggregator(BaseObjectColumnValueSelector selector) |
Constructor and Description |
---|
ObjectVarianceAggregator(BaseObjectColumnValueSelector selector) |
ObjectVarianceAggregator(BaseObjectColumnValueSelector<?> selector) |
Modifier and Type | Method and Description |
---|---|
static Map<String,Object> |
SelectQueryEngine.singleEvent(String timestampKey,
BaseLongColumnValueSelector timestampColumnSelector,
List<ColumnSelectorPlus<SelectQueryEngine.SelectColumnSelectorStrategy>> selectorPlusList,
Map<String,BaseObjectColumnValueSelector<?>> metSelectors) |
Modifier and Type | Interface and Description |
---|---|
interface |
ColumnValueSelector<T>
Base type for interfaces that manage column value selection, e.g.
|
interface |
DimensionSelector |
interface |
DoubleColumnSelector
This interface is convenient for implementation of "double-sourcing"
ColumnValueSelector s, it provides
default implementations for all ColumnValueSelector 's methods except BaseDoubleColumnValueSelector.getDouble() . |
interface |
FloatColumnSelector
This interface is convenient for implementation of "float-sourcing"
ColumnValueSelector s, it provides default
implementations for all ColumnValueSelector 's methods except BaseFloatColumnValueSelector.getFloat() . |
interface |
LongColumnSelector
This interface is convenient for implementation of "long-sourcing"
ColumnValueSelector s, it provides default
implementations for all ColumnValueSelector 's methods except BaseLongColumnValueSelector.getLong() . |
interface |
ObjectColumnSelector<T>
This interface is convenient for implementation of "object-sourcing"
ColumnValueSelector s, it provides
default implementations for all ColumnValueSelector 's methods except getObject() and classOfObject() . |
Modifier and Type | Class and Description |
---|---|
class |
ConstantColumnValueSelector<T> |
class |
ConstantDimensionSelector |
class |
DoubleWrappingDimensionSelector |
class |
FloatWrappingDimensionSelector |
class |
LongWrappingDimensionSelector |
class |
NilColumnValueSelector
Represents "absent" column.
|
class |
NullDimensionSelector |
class |
SingleScanTimeDimSelector |
Modifier and Type | Interface and Description |
---|---|
interface |
HistoricalColumnSelector<T> |
interface |
HistoricalDimensionSelector
Specialization for
DimensionSelector queryable via offsets from HistoricalCursor . |
interface |
SingleValueHistoricalDimensionSelector |
Modifier and Type | Class and Description |
---|---|
class |
BaseSingleValueDimensionSelector |
class |
ExpressionColumnValueSelector |
class |
SingleLongInputCachingExpressionColumnValueSelector
Like
ExpressionColumnValueSelector , but caches the most recently computed value and re-uses it in the case
of runs in the underlying column. |
class |
SingleStringInputCachingExpressionColumnValueSelector
Like
ExpressionColumnValueSelector , but caches results for the first CACHE_SIZE dictionary IDs of
a string column. |
class |
SingleStringInputDimensionSelector
A DimensionSelector decorator that computes an expression on top of it.
|
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