CellSkipListSet (Hortonworks Data Platform Apache HBase Java API Reference)

java.lang.Object
- org.apache.hadoop.hbase.regionserver.CellSkipListSet

All Implemented Interfaces:

java.lang.Iterable<Cell>, java.util.Collection<Cell>, java.util.NavigableSet<Cell>, java.util.Set<Cell>, java.util.SortedSet<Cell>
```
@InterfaceAudience.Private
public class CellSkipListSet
extends java.lang.Object
implements java.util.NavigableSet<Cell>
```
A Set of Cells implemented on top of a ConcurrentSkipListMap. Works like a ConcurrentSkipListSet in all but one regard: An add will overwrite if already an entry for the added key. In other words, where CSLS does "Adds the specified element to this set if it is not already present.", this implementation "Adds the specified element to this set EVEN if it is already present overwriting what was there previous". The call to add returns true if no value in the backing map or false if there was an entry with same key (though value may be different).
Otherwise, has same attributes as ConcurrentSkipListSet: e.g. tolerant of concurrent get and set and won't throw ConcurrentModificationException when iterating.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`boolean`	`add(Cell e)`
`boolean`	`addAll(java.util.Collection<? extends Cell> c)`
`Cell`	`ceiling(Cell e)`
`void`	`clear()`
`java.util.Comparator<? super Cell>`	`comparator()`
`boolean`	`contains(java.lang.Object o)`
`boolean`	`containsAll(java.util.Collection<?> c)`
`java.util.Iterator<Cell>`	`descendingIterator()`
`java.util.NavigableSet<Cell>`	`descendingSet()`
`Cell`	`first()`
`Cell`	`floor(Cell e)`
`Cell`	`get(Cell kv)`
`java.util.SortedSet<Cell>`	`headSet(Cell toElement)`
`java.util.NavigableSet<Cell>`	`headSet(Cell toElement, boolean inclusive)`
`Cell`	`higher(Cell e)`
`boolean`	`isEmpty()`
`java.util.Iterator<Cell>`	`iterator()`
`Cell`	`last()`
`Cell`	`lower(Cell e)`
`Cell`	`pollFirst()`
`Cell`	`pollLast()`
`boolean`	`remove(java.lang.Object o)`
`boolean`	`removeAll(java.util.Collection<?> c)`
`boolean`	`retainAll(java.util.Collection<?> c)`
`int`	`size()`
`java.util.NavigableSet<Cell>`	`subSet(Cell fromElement, boolean fromInclusive, Cell toElement, boolean toInclusive)`
`java.util.SortedSet<Cell>`	`subSet(Cell fromElement, Cell toElement)`
`java.util.SortedSet<Cell>`	`tailSet(Cell fromElement)`
`java.util.NavigableSet<Cell>`	`tailSet(Cell fromElement, boolean inclusive)`
`java.lang.Object[]`	`toArray()`
`<T> T[]`	`toArray(T[] a)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.SortedSet
spliterator

Methods inherited from interface java.util.Set
equals, hashCode

Methods inherited from interface java.util.Collection
parallelStream, removeIf, stream

Methods inherited from interface java.lang.Iterable
forEach

- Method Detail
  - ceiling
```
public Cell ceiling(Cell e)
```
    Specified by:
    
    ceiling in interface java.util.NavigableSet<Cell>
  - descendingIterator
```
public java.util.Iterator<Cell> descendingIterator()
```
    Specified by:
    
    descendingIterator in interface java.util.NavigableSet<Cell>
  - descendingSet
```
public java.util.NavigableSet<Cell> descendingSet()
```
    Specified by:
    
    descendingSet in interface java.util.NavigableSet<Cell>
  - floor
```
public Cell floor(Cell e)
```
    Specified by:
    
    floor in interface java.util.NavigableSet<Cell>
  - headSet
```
public java.util.SortedSet<Cell> headSet(Cell toElement)
```
    Specified by:
    
    headSet in interface java.util.NavigableSet<Cell>
    
    Specified by:
    
    headSet in interface java.util.SortedSet<Cell>
  - headSet
```
public java.util.NavigableSet<Cell> headSet(Cell toElement,
                                            boolean inclusive)
```
    Specified by:
    
    headSet in interface java.util.NavigableSet<Cell>
  - higher
```
public Cell higher(Cell e)
```
    Specified by:
    
    higher in interface java.util.NavigableSet<Cell>
  - iterator
```
public java.util.Iterator<Cell> iterator()
```
    Specified by:
    
    iterator in interface java.lang.Iterable<Cell>
    
    Specified by:
    
    iterator in interface java.util.Collection<Cell>
    
    Specified by:
    
    iterator in interface java.util.NavigableSet<Cell>
    
    Specified by:
    
    iterator in interface java.util.Set<Cell>
  - lower
```
public Cell lower(Cell e)
```
    Specified by:
    
    lower in interface java.util.NavigableSet<Cell>
  - pollFirst
```
public Cell pollFirst()
```
    Specified by:
    
    pollFirst in interface java.util.NavigableSet<Cell>
  - pollLast
```
public Cell pollLast()
```
    Specified by:
    
    pollLast in interface java.util.NavigableSet<Cell>
  - subSet
```
public java.util.SortedSet<Cell> subSet(Cell fromElement,
                                        Cell toElement)
```
    Specified by:
    
    subSet in interface java.util.NavigableSet<Cell>
    
    Specified by:
    
    subSet in interface java.util.SortedSet<Cell>
  - subSet
```
public java.util.NavigableSet<Cell> subSet(Cell fromElement,
                                           boolean fromInclusive,
                                           Cell toElement,
                                           boolean toInclusive)
```
    Specified by:
    
    subSet in interface java.util.NavigableSet<Cell>
  - tailSet
```
public java.util.SortedSet<Cell> tailSet(Cell fromElement)
```
    Specified by:
    
    tailSet in interface java.util.NavigableSet<Cell>
    
    Specified by:
    
    tailSet in interface java.util.SortedSet<Cell>
  - tailSet
```
public java.util.NavigableSet<Cell> tailSet(Cell fromElement,
                                            boolean inclusive)
```
    Specified by:
    
    tailSet in interface java.util.NavigableSet<Cell>
  - comparator
```
public java.util.Comparator<? super Cell> comparator()
```
    Specified by:
    
    comparator in interface java.util.SortedSet<Cell>
  - first
```
public Cell first()
```
    Specified by:
    
    first in interface java.util.SortedSet<Cell>
  - last
```
public Cell last()
```
    Specified by:
    
    last in interface java.util.SortedSet<Cell>
  - add
```
public boolean add(Cell e)
```
    Specified by:
    
    add in interface java.util.Collection<Cell>
    
    Specified by:
    
    add in interface java.util.Set<Cell>
  - addAll
```
public boolean addAll(java.util.Collection<? extends Cell> c)
```
    Specified by:
    
    addAll in interface java.util.Collection<Cell>
    
    Specified by:
    
    addAll in interface java.util.Set<Cell>
  - clear
```
public void clear()
```
    Specified by:
    
    clear in interface java.util.Collection<Cell>
    
    Specified by:
    
    clear in interface java.util.Set<Cell>
  - contains
```
public boolean contains(java.lang.Object o)
```
    Specified by:
    
    contains in interface java.util.Collection<Cell>
    
    Specified by:
    
    contains in interface java.util.Set<Cell>
  - containsAll
```
public boolean containsAll(java.util.Collection<?> c)
```
    Specified by:
    
    containsAll in interface java.util.Collection<Cell>
    
    Specified by:
    
    containsAll in interface java.util.Set<Cell>
  - isEmpty
```
public boolean isEmpty()
```
    Specified by:
    
    isEmpty in interface java.util.Collection<Cell>
    
    Specified by:
    
    isEmpty in interface java.util.Set<Cell>
  - remove
```
public boolean remove(java.lang.Object o)
```
    Specified by:
    
    remove in interface java.util.Collection<Cell>
    
    Specified by:
    
    remove in interface java.util.Set<Cell>
  - removeAll
```
public boolean removeAll(java.util.Collection<?> c)
```
    Specified by:
    
    removeAll in interface java.util.Collection<Cell>
    
    Specified by:
    
    removeAll in interface java.util.Set<Cell>
  - retainAll
```
public boolean retainAll(java.util.Collection<?> c)
```
    Specified by:
    
    retainAll in interface java.util.Collection<Cell>
    
    Specified by:
    
    retainAll in interface java.util.Set<Cell>
  - get
```
public Cell get(Cell kv)
```
  - size
```
public int size()
```
    Specified by:
    
    size in interface java.util.Collection<Cell>
    
    Specified by:
    
    size in interface java.util.Set<Cell>
  - toArray
```
public java.lang.Object[] toArray()
```
    Specified by:
    
    toArray in interface java.util.Collection<Cell>
    
    Specified by:
    
    toArray in interface java.util.Set<Cell>
  - toArray
```
public <T> T[] toArray(T[] a)
```
    Specified by:
    
    toArray in interface java.util.Collection<Cell>
    
    Specified by:
    
    toArray in interface java.util.Set<Cell>

Class CellSkipListSet

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface java.util.SortedSet

Methods inherited from interface java.util.Set

Methods inherited from interface java.util.Collection

Methods inherited from interface java.lang.Iterable

Method Detail

ceiling

descendingIterator

descendingSet

floor

headSet

headSet

higher

iterator

lower

pollFirst

pollLast

subSet

subSet

tailSet

tailSet

comparator

first

last

add

addAll

clear

contains

containsAll

isEmpty

remove

removeAll

retainAll

get

size

toArray

toArray