Package com.im.commons.util

Class ImmutableCaseInsensitiveMap<V>

java.lang.Object

java.util.AbstractMap<java.lang.String,V>

com.im.commons.util.AbstractCaseInsensitiveMap<V>

com.im.commons.util.ImmutableCaseInsensitiveMap<V>

Type Parameters:

V - Value type.

All Implemented Interfaces:

java.io.Serializable, java.util.Map<java.lang.String,V>

public final class ImmutableCaseInsensitiveMap<V>
extends AbstractCaseInsensitiveMap<V>

This Map is a delegate that transforms all keys to lowercase. Null keys and values are not allowed as the backing map is ImmutableMap. On return the keys are unwrapped. Modification of data is not allowed.

Since:

17.1.9

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

java.util.AbstractMap.SimpleEntry<K extends java.lang.Object,V extends java.lang.Object>, java.util.AbstractMap.SimpleImmutableEntry<K extends java.lang.Object,V extends java.lang.Object>

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

java.util.Map.Entry<K extends java.lang.Object,V extends java.lang.Object>

Method Summary

Modifier and Type	Method	Description
static <V> ImmutableCaseInsensitiveMap<V>	copyOf(java.util.Map<?,V> map)	Wraps the original map to an immutable case insensitive map.

Methods inherited from class com.im.commons.util.AbstractCaseInsensitiveMap

clear, containsKey, containsValue, entrySet, get, isEmpty, keySet, put, remove, size, values

Methods inherited from class java.util.AbstractMap

clone, equals, hashCode, putAll, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

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

Method Detail

copyOf

public static <V> ImmutableCaseInsensitiveMap<V> copyOf(java.util.Map<?,V> map)

Wraps the original map to an immutable case insensitive map. Despite the method name, this method attempts to avoid actually copying the data when it is safe to do so.

Type Parameters:

V - Value type.

Parameters:

map - Map to wrap.

Returns:

Immutable case insensitive map.

Throws:

java.lang.NullPointerException - - if any key, value, or entry is null

java.lang.IllegalArgumentException - - if two entries have the same key