java.lang.Object
- org.apache.jena.atlas.lib.persistent.PMap<K,V,SelfType>

Type Parameters:

K - the type of keys in the map

V - the type of values in this map

SelfType - the self-type of implementing classes

All Implemented Interfaces:

PersistentMap<K,V,SelfType>
```
public abstract class PMap<K,V,SelfType extends PMap<K,V,SelfType>>
extends java.lang.Object
implements PersistentMap<K,V,SelfType>
```
An implementation of PersistentMap using Map.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.util.Map<K,V>`	`asMap()`	An immutable view of this as a `Map`.
`boolean`	`containsKey(K key)`
`java.util.stream.Stream<java.util.Map.Entry<K,V>>`	`entryStream()`
`java.util.Optional<V>`	`get(K key)`
`SelfType`	`minus(K key)`
`SelfType`	`plus(K key, V value)`

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

Methods inherited from interface org.apache.jena.atlas.lib.persistent.PersistentMap
flatten

- Method Detail
  - asMap
```
public java.util.Map<K,V> asMap()
```
    Description copied from interface: PersistentMap
    
    An immutable view of this as a Map.
    
    Specified by:
    
    asMap in interface PersistentMap<K,V,SelfType extends PMap<K,V,SelfType>>
  - plus
```
public SelfType plus(K key,
                     V value)
```
    Specified by:
    
    plus in interface PersistentMap<K,V,SelfType extends PMap<K,V,SelfType>>
    
    Returns:
    
    a new SelfType with a new mapping from key to value
  - minus
```
public SelfType minus(K key)
```
    Specified by:
    
    minus in interface PersistentMap<K,V,SelfType extends PMap<K,V,SelfType>>
    
    Returns:
    
    a new SelfType without the mapping indexed by key
  - get
```
public java.util.Optional<V> get(K key)
```
    Specified by:
    
    get in interface PersistentMap<K,V,SelfType extends PMap<K,V,SelfType>>
    
    Returns:
    
    the value indexed by key if it exists
  - containsKey
```
public boolean containsKey(K key)
```
    Specified by:
    
    containsKey in interface PersistentMap<K,V,SelfType extends PMap<K,V,SelfType>>
    
    Returns:
    
    whether this map contains an entry indexed by key
  - entryStream
```
public java.util.stream.Stream<java.util.Map.Entry<K,V>> entryStream()
```
    Specified by:
    
    entryStream in interface PersistentMap<K,V,SelfType extends PMap<K,V,SelfType>>
    
    Returns:
    
    a Stream of map entries

Class PMap<K,​V,​SelfType extends PMap<K,​V,​SelfType>>

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface org.apache.jena.atlas.lib.persistent.PersistentMap

Method Detail

asMap

plus

minus

get

containsKey

entryStream

Class PMap<K,V,SelfType extends PMap<K,V,SelfType>>