com.xpn.xwiki.criteria.impl

Class Range

java.lang.Object

com.xpn.xwiki.criteria.impl.Range

public class Range
extends Object

Immutable continuous integer range. It can be used for pagination

Constructor Summary

Constructors

Constructor and Description
Range(int start, int size) Creates a new interval having the specified start and size.

Method Summary

Modifier and Type	Method and Description
int	getAbsoluteSize()
int	getAbsoluteStart()
int	getSize()
int	getStart()
List<String>	subList(List<String> list) Copy the given list and return a (smart) subList corresponding to this range.

Methods inherited from class java.lang.Object

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

Constructor Detail

Range

public Range(int start,
             int size)

Creates a new interval having the specified start and size.

Parameters:

start - The start of the interval

size - The size of the interval

Method Detail

getStart

public int getStart()

See Also:

start

getAbsoluteStart

public int getAbsoluteStart()

Returns:

The absolute value (nonnegative) of this interval's start

getSize

public int getSize()

See Also:

size

getAbsoluteSize

public int getAbsoluteSize()

Returns:

The absolute value (nonnegative) of this interval's size

subList

public List<String> subList(List<String> list)

Copy the given list and return a (smart) subList corresponding to this range. If the absolute size of this range is 0 (ALL) it returns an unmodified copy.

Considering this 9 elements list : [0, 1, 2, 3, 4, 5, 6, 7, 8]

• Range 0 / 4 : will return [0, 1, 2, 3]
• Range -2 / 4 : will return [7, 8] (not enough elements for the given size)
• Range -2 / -4 : will return [3, 4, 5, 6]
• Range 2 / -4 : will return [0, 1] (not enough elements for the given size)
• Range 0 / -4 : will return [5, 6, 7, 8]

Parameters:

list - the list from which the sublist will be extracted

Returns:

a sublist of the given list computed from this range