PositionsIterator

java.lang.Object

es.uam.eps.ir.relison.content.index.structure.positional.PositionsIterator

All Implemented Interfaces:: java.util.Iterator<java.lang.Integer>

public class PositionsIterator
extends java.lang.Object
implements java.util.Iterator<java.lang.Integer>

Iterator over a list of positions

Field Summary

Fields
Modifier and Type	Field	Description
`(package private) int`	`down`	Pointers.
`(package private) java.util.List<java.lang.Integer>`	`positions`	The position list.
`(package private) int`	`up`	Pointers.

Constructor Summary

Constructors

Constructor Description

PositionsIterator(java.util.List<java.lang.Integer> pos)
Obtains a list of positions.

Method Summary

Modifier and Type	Method	Description
`boolean`	`hasNext()`	Indicates whether the list has a next position.
`java.lang.Integer`	`next()`	The next position in the position list.
`java.lang.Integer`	`nextAfter(int pos)`	Obtains the first element after a given position.
`java.lang.Integer`	`nextBefore(int pos)`	Obtains the first element before a given position.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining, remove

Field Details
- positions
  
  java.util.List<java.lang.Integer> positions
  
  The position list.
- up
  
  int up
  
  Pointers.
- down
  
  int down
  
  Pointers.
Constructor Details
- PositionsIterator
  
  public PositionsIterator(java.util.List<java.lang.Integer> pos)
  
  Obtains a list of positions.
  
  Parameters:
  
  pos - the list of positions.
Method Details
- hasNext
  
  public boolean hasNext()
  
  Indicates whether the list has a next position.
  
  Specified by:
  
  hasNext in interface java.util.Iterator<java.lang.Integer>
  
  Returns:
  
  true if it has, false otherwise.
- next
  
  public java.lang.Integer next()
  
  The next position in the position list.
  
  Specified by:
  
  next in interface java.util.Iterator<java.lang.Integer>
  
  Returns:
  
  the position.
- nextAfter
  
  public java.lang.Integer nextAfter(int pos)
  
  Obtains the first element after a given position.
  
  Parameters:
  
  pos - the position.
  
  Returns:
  
  the next element after a given position.
- nextBefore
  
  public java.lang.Integer nextBefore(int pos)
  
  Obtains the first element before a given position.
  
  Parameters:
  
  pos - the position.
  
  Returns:
  
  the next element before a given position.