Class LongSumLoader
- All Implemented Interfaces:
AggregateAttributeLoader<Long>,AttributeLoader<Long>,MultiRowAttributeLoader<Long>,ValueReducer<Long>,RowAttributeLoader<Long>
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Field Summary
Fields inherited from class SingleDependencyReducingAggregateLoader
myDependencyFields inherited from class AbstractAttributeLoader
mySpec -
Constructor Summary
Constructors -
Method Summary
Methods inherited from class SingleDependencyReducingAggregateLoader
getAttributeDependencies, getSelfValueMethods inherited from class ReducingAggregateLoader
loadValueMethods inherited from class AbstractAggregateLoader
firstChildErrorMethods inherited from class AbstractAttributeLoader
getAttributeSpec, toStringMethods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, waitMethods inherited from interface AttributeLoader
getAttributeSpec, getContextDependencies, getGlobalTrailMethods inherited from interface MultiRowAttributeLoader
getCachingStrategyMethods inherited from interface RowAttributeLoader
isWholeForestDependent, preloadMethods inherited from interface ValueReducer
convert, merge, merge
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Constructor Details
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LongSumLoader
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Method Details
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reduce
Description copied from interface:ValueReducerReduces the list of values to one value. Describes 'flat' reduction of elements without hierarchy. Called reducing direct children values or frommergemethods if not overridden. Can be called fromconvertmethod- Parameters:
list- list of values, every item can be null- Returns:
- value after reduction, null means undefined
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