com.landawn.abacus.util

Class Properties<K,V>

java.lang.Object

com.landawn.abacus.util.Properties<K,V>

All Implemented Interfaces:

java.util.Map<K,V>

Direct Known Subclasses:

AbstractHttpClient.HttpSettings

public class Properties<K,V>
extends java.lang.Object
implements java.util.Map<K,V>

Since:

0.8

Author:

Haiyang Li

Nested Class Summary

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

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

Constructor Summary

Constructors

Constructor and Description
Properties()

Method Summary

Modifier and Type	Method and Description
void	clear()
boolean	containsKey(java.lang.Object key)
boolean	containsValue(java.lang.Object value)
Properties<K,V>	copy()
java.util.Set<java.util.Map.Entry<K,V>>	entrySet()
boolean	equals(java.lang.Object obj)
static <K,V> Properties<K,V>	from(java.util.Map<? extends K,? extends V> map)
<T> T	get(java.lang.Class<T> targetClass, java.lang.Object propName) To avoid NullPointerException for primitive type if the target property is null or not set.
V	get(java.lang.Object propName)
<T> T	getOrDefault(java.lang.Class<T> targetClass, java.lang.Object propName, T defaultValue)
V	getOrDefault(java.lang.Object propName, V defaultValue)
int	hashCode()
boolean	isEmpty()
java.util.Set<K>	keySet()
V	put(K key, V value)
void	putAll(java.util.Map<? extends K,? extends V> m)
V	putIfAbsent(K key, V value)
V	remove(java.lang.Object key)
boolean	remove(java.lang.Object key, java.lang.Object value) Removes the entry for the specified key only if it is currently mapped to the specified value.
V	replace(K key, V value) Replaces the entry for the specified key only if it is currently mapped to some value.
boolean	replace(K key, V oldValue, V newValue) Replaces the entry for the specified key only if currently mapped to the specified value.
Properties<K,V>	set(K propName, V propValue)
int	size()
java.lang.String	toString()
java.util.Collection<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, merge, replaceAll

Constructor Detail

Properties

public Properties()

Method Detail

from

public static <K,V> Properties<K,V> from(java.util.Map<? extends K,? extends V> map)

get

public V get(java.lang.Object propName)

Specified by:

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

get

public <T> T get(java.lang.Class<T> targetClass,
                 java.lang.Object propName)

To avoid NullPointerException for primitive type if the target property is null or not set.

Parameters:

targetClass -

propName -

Returns:

getOrDefault

public V getOrDefault(java.lang.Object propName,
                      V defaultValue)

Specified by:

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

Parameters:

propName -

defaultValue - is returned if the specified propName is not contained in this Properties instance or it's null.

Returns:

getOrDefault

public <T> T getOrDefault(java.lang.Class<T> targetClass,
                          java.lang.Object propName,
                          T defaultValue)

Parameters:

targetClass -

propName -

defaultValue - is returned if the specified propName is not contained in this Properties instance or it's null.

Returns:

set

public Properties<K,V> set(K propName,
                           V propValue)

Parameters:

propName -

propValue -

Returns:

the same property

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>

putIfAbsent

public V putIfAbsent(K key,
                     V value)

Specified by:

putIfAbsent 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>

remove

public boolean remove(java.lang.Object key,
                      java.lang.Object value)

Removes the entry for the specified key only if it is currently mapped to the specified value.

Specified by:

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

replace

public V replace(K key,
                 V value)

Replaces the entry for the specified key only if it is currently mapped to some value.

Specified by:

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

replace

public boolean replace(K key,
                       V oldValue,
                       V newValue)

Replaces the entry for the specified key only if currently mapped to the specified value.

Specified by:

replace 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>

keySet

public java.util.Set<K> keySet()

Specified by:

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

values

public java.util.Collection<V> values()

Specified by:

values 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>

isEmpty

public boolean isEmpty()

Specified by:

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

size

public int size()

Specified by:

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

clear

public void clear()

Specified by:

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

copy

public Properties<K,V> copy()

hashCode

public int hashCode()

Specified by:

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

Overrides:

hashCode in class java.lang.Object

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

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object