SortedMapWritable (Apache Hadoop Main 3.4.1 API)

java.lang.Object
- org.apache.hadoop.io.AbstractMapWritable
- - org.apache.hadoop.io.SortedMapWritable<K>

All Implemented Interfaces:: Map<K,Writable>, SortedMap<K,Writable>, Configurable, Writable

@InterfaceAudience.Public
 @InterfaceStability.Stable
public class SortedMapWritable<K extends WritableComparable<? super K>>
extends AbstractMapWritable
implements SortedMap<K,Writable>

A Writable SortedMap.

Constructor Summary

Constructors
Constructor and Description

SortedMapWritable()
default constructor.

SortedMapWritable(SortedMapWritable<K> other)
Copy constructor.

Constructors
Constructor and Description
`SortedMapWritable()` default constructor.
`SortedMapWritable(SortedMapWritable<K> other)` Copy constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`clear()`
`Comparator<? super K>`	`comparator()`
`boolean`	`containsKey(Object key)`
`boolean`	`containsValue(Object value)`
`Set<Map.Entry<K,Writable>>`	`entrySet()`
`boolean`	`equals(Object obj)`
`K`	`firstKey()`
`Writable`	`get(Object key)`
`int`	`hashCode()`
`SortedMap<K,Writable>`	`headMap(K toKey)`
`boolean`	`isEmpty()`
`Set<K>`	`keySet()`
`K`	`lastKey()`
`Writable`	`put(K key, Writable value)`
`void`	`putAll(Map<? extends K,? extends Writable> t)`
`void`	`readFields(DataInput in)` Deserialize the fields of this object from `in`.
`Writable`	`remove(Object key)`
`int`	`size()`
`SortedMap<K,Writable>`	`subMap(K fromKey, K toKey)`
`SortedMap<K,Writable>`	`tailMap(K fromKey)`
`Collection<Writable>`	`values()`
`void`	`write(DataOutput out)` Serialize the fields of this object to `out`.

Methods inherited from class org.apache.hadoop.io.AbstractMapWritable
addToMap, copy, getClass, getConf, getId, setConf

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

Methods inherited from interface java.util.Map
compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

- Constructor Detail
  - SortedMapWritable
```
public SortedMapWritable()
```
    default constructor.
  - SortedMapWritable
```
public SortedMapWritable(SortedMapWritable<K> other)
```
    Copy constructor.
    
    Parameters:
    
    other - the map to copy from
- Method Detail
  - comparator
```
public Comparator<? super K> comparator()
```
    Specified by:
    
    comparator in interface SortedMap<K extends WritableComparable<? super K>,Writable>
  - firstKey
```
public K firstKey()
```
    Specified by:
    
    firstKey in interface SortedMap<K extends WritableComparable<? super K>,Writable>
  - headMap
```
public SortedMap<K,Writable> headMap(K toKey)
```
    Specified by:
    
    headMap in interface SortedMap<K extends WritableComparable<? super K>,Writable>
  - lastKey
```
public K lastKey()
```
    Specified by:
    
    lastKey in interface SortedMap<K extends WritableComparable<? super K>,Writable>
  - subMap
```
public SortedMap<K,Writable> subMap(K fromKey,
                                    K toKey)
```
    Specified by:
    
    subMap in interface SortedMap<K extends WritableComparable<? super K>,Writable>
  - tailMap
```
public SortedMap<K,Writable> tailMap(K fromKey)
```
    Specified by:
    
    tailMap in interface SortedMap<K extends WritableComparable<? super K>,Writable>
  - clear
```
public void clear()
```
    Specified by:
    
    clear in interface Map<K extends WritableComparable<? super K>,Writable>
  - containsKey
```
public boolean containsKey(Object key)
```
    Specified by:
    
    containsKey in interface Map<K extends WritableComparable<? super K>,Writable>
  - containsValue
```
public boolean containsValue(Object value)
```
    Specified by:
    
    containsValue in interface Map<K extends WritableComparable<? super K>,Writable>
  - entrySet
```
public Set<Map.Entry<K,Writable>> entrySet()
```
    Specified by:
    
    entrySet in interface Map<K extends WritableComparable<? super K>,Writable>
    
    Specified by:
    
    entrySet in interface SortedMap<K extends WritableComparable<? super K>,Writable>
  - get
```
public Writable get(Object key)
```
    Specified by:
    
    get in interface Map<K extends WritableComparable<? super K>,Writable>
  - isEmpty
```
public boolean isEmpty()
```
    Specified by:
    
    isEmpty in interface Map<K extends WritableComparable<? super K>,Writable>
  - keySet
```
public Set<K> keySet()
```
    Specified by:
    
    keySet in interface Map<K extends WritableComparable<? super K>,Writable>
    
    Specified by:
    
    keySet in interface SortedMap<K extends WritableComparable<? super K>,Writable>
  - put
```
public Writable put(K key,
                    Writable value)
```
    Specified by:
    
    put in interface Map<K extends WritableComparable<? super K>,Writable>
  - putAll
```
public void putAll(Map<? extends K,? extends Writable> t)
```
    Specified by:
    
    putAll in interface Map<K extends WritableComparable<? super K>,Writable>
  - remove
```
public Writable remove(Object key)
```
    Specified by:
    
    remove in interface Map<K extends WritableComparable<? super K>,Writable>
  - size
```
public int size()
```
    Specified by:
    
    size in interface Map<K extends WritableComparable<? super K>,Writable>
  - values
```
public Collection<Writable> values()
```
    Specified by:
    
    values in interface Map<K extends WritableComparable<? super K>,Writable>
    
    Specified by:
    
    values in interface SortedMap<K extends WritableComparable<? super K>,Writable>
  - readFields
```
public void readFields(DataInput in)
                throws IOException
```
    Description copied from interface: Writable
    
    Deserialize the fields of this object from in.
    For efficiency, implementations should attempt to re-use storage in the existing object where possible.
    
    Specified by:
    
    readFields in interface Writable
    
    Overrides:
    
    readFields in class AbstractMapWritable
    
    Parameters:
    
    in - DataInput to deseriablize this object from.
    
    Throws:
    
    IOException - any other problem for readFields.
  - write
```
public void write(DataOutput out)
           throws IOException
```
    Description copied from interface: Writable
    
    Serialize the fields of this object to out.
    
    Specified by:
    
    write in interface Writable
    
    Overrides:
    
    write in class AbstractMapWritable
    
    Parameters:
    
    out - DataOuput to serialize this object into.
    
    Throws:
    
    IOException - any other problem for write.
  - equals
```
public boolean equals(Object obj)
```
    Specified by:
    
    equals in interface Map<K extends WritableComparable<? super K>,Writable>
    
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Specified by:
    
    hashCode in interface Map<K extends WritableComparable<? super K>,Writable>
    
    Overrides:
    
    hashCode in class Object

Class SortedMapWritable<K extends WritableComparable<? super K>>

Constructor Summary

Method Summary

Methods inherited from class org.apache.hadoop.io.AbstractMapWritable

Methods inherited from class java.lang.Object

Methods inherited from interface java.util.Map

Constructor Detail

SortedMapWritable

SortedMapWritable

Method Detail

comparator

firstKey

headMap

lastKey

subMap

tailMap

clear

containsKey

containsValue

entrySet

get

isEmpty

keySet

put

putAll

remove

size

values

readFields

write

equals

hashCode