All Superinterfaces:

it.unimi.dsi.fastutil.ints.IntIterable, Iterable<Integer>

All Known Implementing Classes:

BitmapBackedSelection, BitSetBackedSelection
```
public interface Selection
extends it.unimi.dsi.fastutil.ints.IntIterable
```
A selection maintains an ordered set of ints that can be used to filter rows from a table or column. When applying the selection to the data (table, column, etc.) only those rows with indexes included in the selection pass the filter

Method Summary

All Methods Static Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Selection`	`add(int... ints)`	Adds the given integers to the Selection if it is not already present, and does nothing otherwise
`Selection`	`addRange(int start, int end)`	Adds to the current bitmap all integers in [rangeStart,rangeEnd)
`Selection`	`and(Selection otherSelection)`	Returns this Selection object after its data has been intersected with `otherSelection`
`Selection`	`andNot(Selection otherSelection)`	Implements the set difference operation between the receiver and `otherSelection`, after updating the receiver
`Selection`	`clear()`	Returns this selection with all its values cleared
`boolean`	`contains(int i)`	Returns true if the index i is selected in this object
`Selection`	`flip(int rangeStart, int rangeEnd)`	Returns a selection with the bits from this selection flipped over the given range
`static Selection`	`fromBitmap(org.roaringbitmap.RoaringBitmap bitmap)`
`int`	`get(int i)`	Returns the value of the ith element.
`boolean`	`isEmpty()`	Returns true if this selection has no values, and false otherwise
`Selection`	`or(Selection otherSelection)`	Returns this Selection object with its data replaced by the union of its starting data and `otherSelection`
`Selection`	`removeRange(long start, long end)`	Removes from the current bitmap from all integers in [rangeStart,rangeEnd)
`static Selection`	`selectNRowsAtRandom(int n, int max)`	Returns an randomly generated selection of size N where Max is the largest possible value
`int`	`size()`	Returns the number of integers represented by this Selection
`int[]`	`toArray()`	Returns the elements of this selection as an array of ints
`static Selection`	`with(int... rows)`	Returns a Selection containing all indexes in the array
`static Selection`	`withoutRange(int totalRangeStart, int totalRangeEnd, int excludedRangeStart, int excludedRangeEnd)`	Returns a Selection containing all values from totalRangeStart to totalRangeEnd, except for those in the range from excludedRangeStart to excludedRangeEnd.
`static Selection`	`withRange(int start, int end)`	Returns a Selection containing all indexes in the range start (inclusive) to end (exclusive),

Methods inherited from interface it.unimi.dsi.fastutil.ints.IntIterable
forEach, forEach, forEach, intIterator, intSpliterator, iterator, spliterator

- Method Detail
  - toArray
```
int[] toArray()
```
    Returns the elements of this selection as an array of ints
  - add
```
Selection add(int... ints)
```
    Adds the given integers to the Selection if it is not already present, and does nothing otherwise
  - addRange
```
Selection addRange(int start,
                   int end)
```
    Adds to the current bitmap all integers in [rangeStart,rangeEnd)
    
    Parameters:
    
    start - inclusive beginning of range
    
    end - exclusive ending of range
  - removeRange
```
Selection removeRange(long start,
                      long end)
```
    Removes from the current bitmap from all integers in [rangeStart,rangeEnd)
    
    Parameters:
    
    start - inclusive beginning of range
    
    end - exclusive ending of range
  - size
```
int size()
```
    Returns the number of integers represented by this Selection
  - and
```
Selection and(Selection otherSelection)
```
    Returns this Selection object after its data has been intersected with otherSelection
  - or
```
Selection or(Selection otherSelection)
```
    Returns this Selection object with its data replaced by the union of its starting data and otherSelection
  - andNot
```
Selection andNot(Selection otherSelection)
```
    Implements the set difference operation between the receiver and otherSelection, after updating the receiver
  - isEmpty
```
boolean isEmpty()
```
    Returns true if this selection has no values, and false otherwise
  - clear
```
Selection clear()
```
    Returns this selection with all its values cleared
  - contains
```
boolean contains(int i)
```
    Returns true if the index i is selected in this object
  - get
```
int get(int i)
```
    Returns the value of the ith element. For example, if there are three ints {4, 32, 71} in the selection, get(0) returns 4, get(1) returns 32, and get(2) returns 71
    It can be useful if you need to iterate over the data, although there is also an iterator
  - flip
```
Selection flip(int rangeStart,
               int rangeEnd)
```
    Returns a selection with the bits from this selection flipped over the given range
  - selectNRowsAtRandom
```
static Selection selectNRowsAtRandom(int n,
                                     int max)
```
    Returns an randomly generated selection of size N where Max is the largest possible value
  - with
```
static Selection with(int... rows)
```
    Returns a Selection containing all indexes in the array
  - fromBitmap
```
static Selection fromBitmap(org.roaringbitmap.RoaringBitmap bitmap)
```
  - withRange
```
static Selection withRange(int start,
                           int end)
```
    Returns a Selection containing all indexes in the range start (inclusive) to end (exclusive),
  - withoutRange
```
static Selection withoutRange(int totalRangeStart,
                              int totalRangeEnd,
                              int excludedRangeStart,
                              int excludedRangeEnd)
```
    Returns a Selection containing all values from totalRangeStart to totalRangeEnd, except for those in the range from excludedRangeStart to excludedRangeEnd. Start values are inclusive, end values exclusive.

Interface Selection

Method Summary

Methods inherited from interface it.unimi.dsi.fastutil.ints.IntIterable

Method Detail

toArray

add

addRange

removeRange

size

and

or

andNot

isEmpty

clear

contains

get

flip

selectNRowsAtRandom

with

fromBitmap

withRange

withoutRange