Package extra166y
Class ParallelDoubleArrayWithBounds
java.lang.Object
extra166y.AbstractParallelAnyArray
extra166y.ParallelDoubleArrayWithDoubleMapping
extra166y.ParallelDoubleArrayWithFilter
extra166y.ParallelDoubleArrayWithBounds
- Direct Known Subclasses:
ParallelDoubleArray
A prefix view of ParallelDoubleArray that causes operations to apply
only to elements within a given range.
Instances of this class may be constructed only via prefix
methods of ParallelDoubleArray or its other prefix classes.
-
Method Summary
Modifier and TypeMethodDescriptionabstract intbinarySearch(double target) Assuming this array is sorted, returns the index of an element equal to given target, or -1 if not present.abstract intbinarySearch(double target, Ops.DoubleComparator comparator) Assuming this array is sorted with respect to the given comparator, returns the index of an element equal to given target, or -1 if not present.abstract ParallelDoubleArrayWithBoundscumulate(Ops.DoubleReducer reducer, double base) Replaces each element with the running cumulation of applying the given reducer.abstract ParallelDoubleArrayWithBoundsReplaces each element with the running sumabstract intindexOf(double target) Returns the index of some element equal to given target, or -1 if not presentabstract doubleprecumulate(Ops.DoubleReducer reducer, double base) Replaces each element with the cumulation of applying the given reducer to all previous values, and returns the total reduction.abstract doubleReplaces each element with its prefix sumabstract ParallelDoubleArrayWithBoundssort()Sorts the elements, assuming all elements are Comparable.abstract ParallelDoubleArrayWithBoundssort(Ops.DoubleComparator cmp) Sorts the elements.abstract ParallelDoubleArrayWithBoundswithBounds(int firstIndex, int upperBound) Returns an operation prefix that causes a method to operate only on the elements of the array between firstIndex (inclusive) and upperBound (exclusive).Methods inherited from class extra166y.ParallelDoubleArrayWithFilter
allUniqueElements, hasAllEqualElements, replaceWithGeneratedValue, replaceWithMappedIndex, replaceWithMappedIndex, replaceWithMapping, replaceWithMapping, replaceWithMapping, replaceWithValue, withFilter, withFilter, withIndexedFilterMethods inherited from class extra166y.ParallelDoubleArrayWithDoubleMapping
all, apply, max, max, min, min, reduce, sequentially, sum, summary, summary, withIndexedMapping, withIndexedMapping, withIndexedMapping, withMapping, withMapping, withMapping, withMapping, withMapping, withMapping, withMapping, withMapping, withMapping, withMapping, withMapping, withMappingMethods inherited from class extra166y.AbstractParallelAnyArray
anyIndex, isEmpty, size
-
Method Details
-
withBounds
Returns an operation prefix that causes a method to operate only on the elements of the array between firstIndex (inclusive) and upperBound (exclusive). The bound arguments are relative to the current bounds. For example pa.withBounds(2, 8).withBounds(3, 5) indexes the 5th (= 2+3) and 6th elements of pa. However, indices returned by methods such as indexOf are with respect to the underlying ParallelDoubleArray.- Parameters:
firstIndex- the lower bound (inclusive)upperBound- the upper bound (exclusive)- Returns:
- operation prefix
-
indexOf
public abstract int indexOf(double target) Returns the index of some element equal to given target, or -1 if not present- Parameters:
target- the element to search for- Returns:
- the index or -1 if not present
-
binarySearch
public abstract int binarySearch(double target) Assuming this array is sorted, returns the index of an element equal to given target, or -1 if not present. If the array is not sorted, the results are undefined.- Parameters:
target- the element to search for- Returns:
- the index or -1 if not present
-
binarySearch
Assuming this array is sorted with respect to the given comparator, returns the index of an element equal to given target, or -1 if not present. If the array is not sorted, the results are undefined.- Parameters:
target- the element to search forcomparator- the comparator- Returns:
- the index or -1 if not present
-
cumulate
Replaces each element with the running cumulation of applying the given reducer.- Parameters:
reducer- the reducerbase- the result for an empty array- Returns:
- this (to simplify use in expressions)
-
cumulateSum
Replaces each element with the running sum- Returns:
- this (to simplify use in expressions)
-
precumulate
Replaces each element with the cumulation of applying the given reducer to all previous values, and returns the total reduction.- Parameters:
reducer- the reducerbase- the result for an empty array- Returns:
- the total reduction
-
precumulateSum
public abstract double precumulateSum()Replaces each element with its prefix sum- Returns:
- the total sum
-
sort
Sorts the elements. Unlike Arrays.sort, this sort does not guarantee that elements with equal keys maintain their relative position in the array.- Parameters:
cmp- the comparator to use- Returns:
- this (to simplify use in expressions)
-
sort
Sorts the elements, assuming all elements are Comparable. Unlike Arrays.sort, this sort does not guarantee that elements with equal keys maintain their relative position in the array.- Returns:
- this (to simplify use in expressions)
- Throws:
ClassCastException- if any element is not Comparable.
-