Package edu.indiana.lib.twinpeaks.util

Class CaseBlindHashMap

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap

edu.indiana.lib.twinpeaks.util.CaseBlindHashMap

All Implemented Interfaces:

Serializable, Cloneable, Map

public class CaseBlindHashMap
extends HashMap

CaseBlindHashMap - a HashMap extension, using Strings as key values.

Internally, keys are case insensitive: ABC = abc.

Two methods have been added to facilitate working with Sets of key strings. See stringKeySet() and stringKeyIterator().

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	CaseBlindHashMap.CaseBlindString	A crude, case insensitive string - used internally to represent key values.

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

AbstractMap.SimpleEntry<K extends Object,V extends Object>, AbstractMap.SimpleImmutableEntry<K extends Object,V extends Object>

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

Map.Entry<K extends Object,V extends Object>

Constructor Summary

Constructors

Constructor	Description
CaseBlindHashMap()	Constructors
CaseBlindHashMap(int initCap)
CaseBlindHashMap(int initCap, float loadFactor)
CaseBlindHashMap(CaseBlindHashMap map)

Method Summary

Modifier and Type	Method	Description
boolean	containsKey(String key)	Does the map contain this key?
Object	get(String key)	Fetch a value by name - null keys are not supported
void	put(String key, Object value)	Add the key/value pair to the map - null values are not supported
void	remove(String key)	Remove a key/value pair from this map
Iterator	stringKeyIterator()	Get an Iterator to the String based key set
Set	stringKeySet()	Get the set of keys contained in this map.

Methods inherited from class java.util.HashMap

clear, clone, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, forEach, get, getOrDefault, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

Methods inherited from class java.util.AbstractMap

equals, hashCode, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

equals, hashCode

Constructor Detail

CaseBlindHashMap

public CaseBlindHashMap()

Constructors

CaseBlindHashMap

public CaseBlindHashMap(CaseBlindHashMap map)

CaseBlindHashMap

public CaseBlindHashMap(int initCap)

CaseBlindHashMap

public CaseBlindHashMap(int initCap,
                        float loadFactor)

Method Detail

stringKeySet

public Set stringKeySet()

Get the set of keys contained in this map. Keys values are returned as simple Strings (not the CaseBlindStrings used internally).

This is accopmlished by making a copy of the original map - modifications made to this copy are not reflected in the original.

Returns:

The set of keys

stringKeyIterator

public Iterator stringKeyIterator()

Get an Iterator to the String based key set

Returns:

An iterator to the key set

containsKey

public boolean containsKey(String key)

Does the map contain this key?

Parameters:

key - The key to look up

Returns:

true If the key is present in the map

get

public Object get(String key)

Fetch a value by name - null keys are not supported

Parameters:

key - The key to look up

Returns:

The associated value object

put

public void put(String key,
                Object value)

Add the key/value pair to the map - null values are not supported

Parameters:

key - The key name

value - The object to store

remove

public void remove(String key)

Remove a key/value pair from this map

Parameters:

key - Non-null key to remove