com.alee.utils
Class MapUtils

java.lang.Object
  com.alee.utils.MapUtils

public final class MapUtils
extends java.lang.Object

This class provides a set of utilities to work with various maps.

Author:

Mikle Garin

Constructor Summary

MapUtils()

Method Summary

static <K,V extends java.lang.Cloneable> java.util.HashMap<K,V>	cloneHashMap(java.util.HashMap<K,V> map) Returns HashMap with cloned values.
static <K,V extends java.lang.Cloneable> DoubleMap<K,V>	cloneLinkedHashMap(DoubleMap<K,V> map) Returns DoubleMap with cloned values.
static <K,V extends java.lang.Cloneable> java.util.LinkedHashMap<K,V>	cloneLinkedHashMap(java.util.LinkedHashMap<K,V> map) Returns LinkedHashMap with cloned values.
static <K,V extends java.lang.Cloneable> java.util.Map<K,V>	cloneMap(java.util.Map<K,V> map) Returns Map with cloned values.
static <K,V> DoubleMap<K,V>	copyDoubleMap(DoubleMap<K,V> map) Returns copied DoubleMap.
static <K,V> java.util.HashMap<K,V>	copyHashMap(java.util.HashMap<K,V> map) Returns copied HashMap.
static <K,V> java.util.LinkedHashMap<K,V>	copyLinkedHashMap(java.util.LinkedHashMap<K,V> map) Returns copied LinkedHashMap.
static <K,V> java.util.Map<K,V>	copyMap(java.util.Map<K,V> map) Returns copied Map.
static <K,V> java.util.HashMap<K,V>	newHashMap(K key, V value) Returns newly created HashMap with the specified key and value pair added.
static <K,V> java.util.HashMap<K,V>	newLinkedHashMap(K key, V value) Returns newly created LinkedHashMap with the specified key and value pair added.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MapUtils

public MapUtils()

Method Detail

copyMap

public static <K,V> java.util.Map<K,V> copyMap(java.util.Map<K,V> map)

Returns copied Map.

Type Parameters:

K - Map key type

V - Map value type

Parameters:

map - Map to copy

Returns:

copied Map

copyHashMap

public static <K,V> java.util.HashMap<K,V> copyHashMap(java.util.HashMap<K,V> map)

Returns copied HashMap.

Type Parameters:

K - HashMap key type

V - HashMap value type

Parameters:

map - HashMap to copy

Returns:

copied HashMap

copyLinkedHashMap

public static <K,V> java.util.LinkedHashMap<K,V> copyLinkedHashMap(java.util.LinkedHashMap<K,V> map)

Returns copied LinkedHashMap.

Type Parameters:

K - LinkedHashMap key type

V - LinkedHashMap value type

Parameters:

map - LinkedHashMap to copy

Returns:

copied LinkedHashMap

copyDoubleMap

public static <K,V> DoubleMap<K,V> copyDoubleMap(DoubleMap<K,V> map)

Returns copied DoubleMap.

Type Parameters:

K - DoubleMap key type

V - DoubleMap value type

Parameters:

map - DoubleMap to copy

Returns:

copied DoubleMap

cloneMap

public static <K,V extends java.lang.Cloneable> java.util.Map<K,V> cloneMap(java.util.Map<K,V> map)

Returns Map with cloned values.

Type Parameters:

K - Map key type

V - Map value type

Parameters:

map - Map to clone

Returns:

cloned Map

cloneHashMap

public static <K,V extends java.lang.Cloneable> java.util.HashMap<K,V> cloneHashMap(java.util.HashMap<K,V> map)

Returns HashMap with cloned values.

Type Parameters:

K - HashMap key type

V - HashMap value type

Parameters:

map - HashMap to clone

Returns:

cloned HashMap

cloneLinkedHashMap

public static <K,V extends java.lang.Cloneable> java.util.LinkedHashMap<K,V> cloneLinkedHashMap(java.util.LinkedHashMap<K,V> map)

Returns LinkedHashMap with cloned values.

Type Parameters:

K - LinkedHashMap key type

V - LinkedHashMap value type

Parameters:

map - LinkedHashMap to clone

Returns:

cloned LinkedHashMap

cloneLinkedHashMap

public static <K,V extends java.lang.Cloneable> DoubleMap<K,V> cloneLinkedHashMap(DoubleMap<K,V> map)

Returns DoubleMap with cloned values.

Type Parameters:

K - DoubleMap key type

V - DoubleMap value type

Parameters:

map - DoubleMap to clone

Returns:

cloned DoubleMap

newHashMap

public static <K,V> java.util.HashMap<K,V> newHashMap(K key,
                                                      V value)

Returns newly created HashMap with the specified key and value pair added.

Type Parameters:

K - key type

V - value type

Parameters:

key - key to add

value - value to add

Returns:

newly created HashMap

newLinkedHashMap

public static <K,V> java.util.HashMap<K,V> newLinkedHashMap(K key,
                                                            V value)

Returns newly created LinkedHashMap with the specified key and value pair added.

Type Parameters:

K - key type

V - value type

Parameters:

key - key to add

value - value to add

Returns:

newly created LinkedHashMap