Package com.terracottatech.store

Interface Selection.NumberSelection<T extends Number & Comparable<T>>

Type Parameters:

T - element type

All Superinterfaces:

Collection<T>, Iterable<T>, Selection<T>, Selection.ComparableSelection<T>

All Known Subinterfaces:

Selection.DoubleSelection, Selection.IntSelection, Selection.LongSelection

Enclosing interface:

Selection<T>

public static interface Selection.NumberSelection<T extends Number & Comparable<T>>
extends Selection.ComparableSelection<T>

Selection where all the elements are a subclass of Number. Adds sum() call to Selection

Nested Class Summary

Nested classes/interfaces inherited from interface com.terracottatech.store.Selection

Selection.ComparableSelection<T extends Comparable<T>>, Selection.DoubleSelection, Selection.IntSelection, Selection.LongSelection, Selection.NumberSelection<T extends Number & Comparable<T>>

Method Summary

Modifier and Type	Method	Description
T	sum()	Sum the numeric elements in this Selection, return 0 if there are none.

Methods inherited from interface java.util.Collection

addAll, contains, containsAll, equals, hashCode, isEmpty, iterator, parallelStream, size, spliterator, stream, toArray, toArray, toArray

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface com.terracottatech.store.Selection

add, clear, first, firstOrElse, firstOrFail, get, getOrElse, getOrFail, last, lastOrElse, lastOrFail, remove, removeAll, removeIf, retainAll, sole, soleOrElse

Methods inherited from interface com.terracottatech.store.Selection.ComparableSelection

greaterThan, greaterThanOrEqual, lessThan, lessThanOrEqual, max, min

Method Details

sum

T sum()

Sum the numeric elements in this Selection, return 0 if there are none.

Returns:

sum of the selection