com.almworks.jira.structure.api.attribute.loader.basic

Class LongSumLoader

Object

AbstractAttributeLoader<T>

AbstractAggregateLoader<T>

ReducingAggregateLoader<T>

SingleDependencyReducingAggregateLoader<Long>

LongSumLoader

All Implemented Interfaces:

AggregateAttributeLoader<Long>, AttributeLoader<Long>, MultiRowAttributeLoader<Long>, ValueReducer<Long>, RowAttributeLoader<Long>

public class LongSumLoader
extends SingleDependencyReducingAggregateLoader<Long>

Field Summary

Fields inherited from class SingleDependencyReducingAggregateLoader

myDependency

Fields inherited from class AbstractAttributeLoader

mySpec

Constructor Summary

Constructors

Constructor and Description
LongSumLoader(AttributeSpec<Long> spec, AttributeSpec<Long> dependency)

Method Summary

Modifier and Type	Method and Description
Long	reduce(List<Long> list) Reduces the list of values to one value.

Methods inherited from class SingleDependencyReducingAggregateLoader

getAttributeDependencies, getSelfValue

Methods inherited from class ReducingAggregateLoader

loadValue

Methods inherited from class AbstractAggregateLoader

firstChildError

Methods inherited from class AbstractAttributeLoader

getAttributeSpec, toString

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface ValueReducer

convert, merge, merge

Methods inherited from interface MultiRowAttributeLoader

getCachingStrategy

Methods inherited from interface RowAttributeLoader

isWholeForestDependent, preload

Methods inherited from interface AttributeLoader

getAttributeSpec, getContextDependencies, getGlobalTrail

Constructor Detail

LongSumLoader

public LongSumLoader(AttributeSpec<Long> spec,
                     AttributeSpec<Long> dependency)

Method Detail

reduce

public Long reduce(@NotNull
                   List<Long> list)

Description copied from interface: ValueReducer

Reduces the list of values to one value. Describes 'flat' reduction of elements without hierarchy. Called reducing direct children values or from merge methods if not overridden. Can be called from convert method

Parameters:

list - list of values, every item can be null

Returns:

value after reduction, null means undefined