be.SIRAPRISE.util

Class MyReadOnlyMap<K,V>

java.lang.Object

be.SIRAPRISE.util.MyReadOnlyMap<K,V>

Type Parameters:

V - -

K - -

All Implemented Interfaces:

ReadOnlyMap<K,V>, java.util.Map<K,V>

public class MyReadOnlyMap<K,V>
extends java.lang.Object
implements ReadOnlyMap<K,V>

MyReadOnlyMaps are identical to java's Collections.unmodifiableMap(), but for the fact that the read-only property is declared to the user, and users getting back a MyReadOnlyMap from some method, know they shouldn't even attempt to modify the map's contents, instead of having to wait for the UnsupportedOperationException to appear at run-time.

Author:

Erwin

Nested Class Summary

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

java.util.Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
MyReadOnlyMap(java.util.Map<K,V> underLyingMap) Creates the MyReadOnlyMap with the given underlying map for its mapping

Method Summary

Modifier and Type	Method and Description
void	clear()
boolean	containsKey(java.lang.Object key)
boolean	containsValue(java.lang.Object value)
java.util.Set<java.util.Map.Entry<K,V>>	entrySet()
boolean	equals(java.lang.Object obj)
V	get(java.lang.Object key)
int	hashCode()
boolean	isEmpty()
MyReadOnlySet<K>	keySet()
V	put(K key, V value)
void	putAll(java.util.Map<? extends K,? extends V> m)
V	remove(java.lang.Object key)
int	size()
java.lang.String	toString()
MyReadOnlyCollection<V>	values()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

Constructor Detail

MyReadOnlyMap

public MyReadOnlyMap(java.util.Map<K,V> underLyingMap)

Creates the MyReadOnlyMap with the given underlying map for its mapping

Parameters:

underLyingMap - the mapping of which a read-only view is needed

Method Detail

clear

public void clear()

Specified by:

clear in interface java.util.Map<K,V>

containsKey

public boolean containsKey(java.lang.Object key)

Specified by:

containsKey in interface java.util.Map<K,V>

containsValue

public boolean containsValue(java.lang.Object value)

Specified by:

containsValue in interface java.util.Map<K,V>

entrySet

public java.util.Set<java.util.Map.Entry<K,V>> entrySet()

Specified by:

entrySet in interface java.util.Map<K,V>

equals

public boolean equals(java.lang.Object obj)

Specified by:

equals in interface java.util.Map<K,V>

Overrides:

equals in class java.lang.Object

get

public V get(java.lang.Object key)

Specified by:

get in interface java.util.Map<K,V>

hashCode

public int hashCode()

Specified by:

hashCode in interface java.util.Map<K,V>

Overrides:

hashCode in class java.lang.Object

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface java.util.Map<K,V>

keySet

public MyReadOnlySet<K> keySet()

Specified by:

keySet in interface java.util.Map<K,V>

put

public V put(K key,
             V value)

Specified by:

put in interface java.util.Map<K,V>

putAll

public void putAll(java.util.Map<? extends K,? extends V> m)

Specified by:

putAll in interface java.util.Map<K,V>

remove

public V remove(java.lang.Object key)

Specified by:

remove in interface java.util.Map<K,V>

size

public int size()

Specified by:

size in interface java.util.Map<K,V>

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

values

public MyReadOnlyCollection<V> values()

Specified by:

values in interface java.util.Map<K,V>