SortedMapWritable (Apache Hadoop Common 3.4.1.300-dep-1001 API)

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

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

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

A Writable SortedMap.

Nested Class Summary
- Nested classes/interfaces inherited from interface java.util.Map
  java.util.Map.Entry<K extends java.lang.Object,V extends java.lang.Object>

Constructor Summary

Constructors
Constructor Description

SortedMapWritable()
default constructor.

SortedMapWritable(SortedMapWritable<K> other)
Copy constructor.

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

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`clear()`
`java.util.Comparator<? super K>`	`comparator()`
`boolean`	`containsKey(java.lang.Object key)`
`boolean`	`containsValue(java.lang.Object value)`
`java.util.Set<java.util.Map.Entry<K,Writable>>`	`entrySet()`
`boolean`	`equals(java.lang.Object obj)`
`K`	`firstKey()`
`Writable`	`get(java.lang.Object key)`
`int`	`hashCode()`
`java.util.SortedMap<K,Writable>`	`headMap(K toKey)`
`boolean`	`isEmpty()`
`java.util.Set<K>`	`keySet()`
`K`	`lastKey()`
`Writable`	`put(K key, Writable value)`
`void`	`putAll(java.util.Map<? extends K,? extends Writable> t)`
`void`	`readFields(java.io.DataInput in)`	Deserialize the fields of this object from `in`.
`Writable`	`remove(java.lang.Object key)`
`int`	`size()`
`java.util.SortedMap<K,Writable>`	`subMap(K fromKey, K toKey)`
`java.util.SortedMap<K,Writable>`	`tailMap(K fromKey)`
`java.util.Collection<Writable>`	`values()`
`void`	`write(java.io.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 java.util.Comparator<? super K> comparator()
```
    Specified by:
    
    comparator in interface java.util.SortedMap<K extends WritableComparable<? super K>,Writable>
  - firstKey
```
public K firstKey()
```
    Specified by:
    
    firstKey in interface java.util.SortedMap<K extends WritableComparable<? super K>,Writable>
  - headMap
```
public java.util.SortedMap<K,Writable> headMap(K toKey)
```
    Specified by:
    
    headMap in interface java.util.SortedMap<K extends WritableComparable<? super K>,Writable>
  - lastKey
```
public K lastKey()
```
    Specified by:
    
    lastKey in interface java.util.SortedMap<K extends WritableComparable<? super K>,Writable>
  - subMap
```
public java.util.SortedMap<K,Writable> subMap(K fromKey,
                                                    K toKey)
```
    Specified by:
    
    subMap in interface java.util.SortedMap<K extends WritableComparable<? super K>,Writable>
  - tailMap
```
public java.util.SortedMap<K,Writable> tailMap(K fromKey)
```
    Specified by:
    
    tailMap in interface java.util.SortedMap<K extends WritableComparable<? super K>,Writable>
  - clear
```
public void clear()
```
    Specified by:
    
    clear in interface java.util.Map<K extends WritableComparable<? super K>,Writable>
  - containsKey
```
public boolean containsKey(java.lang.Object key)
```
    Specified by:
    
    containsKey in interface java.util.Map<K extends WritableComparable<? super K>,Writable>
  - containsValue
```
public boolean containsValue(java.lang.Object value)
```
    Specified by:
    
    containsValue in interface java.util.Map<K extends WritableComparable<? super K>,Writable>
  - entrySet
```
public java.util.Set<java.util.Map.Entry<K,Writable>> entrySet()
```
    Specified by:
    
    entrySet in interface java.util.Map<K extends WritableComparable<? super K>,Writable>
    
    Specified by:
    
    entrySet in interface java.util.SortedMap<K extends WritableComparable<? super K>,Writable>
  - get
```
public Writable get(java.lang.Object key)
```
    Specified by:
    
    get in interface java.util.Map<K extends WritableComparable<? super K>,Writable>
  - isEmpty
```
public boolean isEmpty()
```
    Specified by:
    
    isEmpty in interface java.util.Map<K extends WritableComparable<? super K>,Writable>
  - keySet
```
public java.util.Set<K> keySet()
```
    Specified by:
    
    keySet in interface java.util.Map<K extends WritableComparable<? super K>,Writable>
    
    Specified by:
    
    keySet in interface java.util.SortedMap<K extends WritableComparable<? super K>,Writable>
  - put
```
public Writable put(K key,
                    Writable value)
```
    Specified by:
    
    put in interface java.util.Map<K extends WritableComparable<? super K>,Writable>
  - putAll
```
public void putAll(java.util.Map<? extends K,? extends Writable> t)
```
    Specified by:
    
    putAll in interface java.util.Map<K extends WritableComparable<? super K>,Writable>
  - remove
```
public Writable remove(java.lang.Object key)
```
    Specified by:
    
    remove in interface java.util.Map<K extends WritableComparable<? super K>,Writable>
  - size
```
public int size()
```
    Specified by:
    
    size in interface java.util.Map<K extends WritableComparable<? super K>,Writable>
  - values
```
public java.util.Collection<Writable> values()
```
    Specified by:
    
    values in interface java.util.Map<K extends WritableComparable<? super K>,Writable>
    
    Specified by:
    
    values in interface java.util.SortedMap<K extends WritableComparable<? super K>,Writable>
  - readFields
```
public void readFields(java.io.DataInput in)
                throws java.io.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:
    
    java.io.IOException - any other problem for readFields.
  - write
```
public void write(java.io.DataOutput out)
           throws java.io.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:
    
    java.io.IOException - any other problem for write.
  - equals
```
public boolean equals(java.lang.Object obj)
```
    Specified by:
    
    equals in interface java.util.Map<K extends WritableComparable<? super K>,Writable>
    
    Overrides:
    
    equals in class java.lang.Object
  - hashCode
```
public int hashCode()
```
    Specified by:
    
    hashCode in interface java.util.Map<K extends WritableComparable<? super K>,Writable>
    
    Overrides:
    
    hashCode in class java.lang.Object

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

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

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