Class UnmodifiableCollections
- java.lang.Object
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- org.spongepowered.configurate.util.UnmodifiableCollections
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public final class UnmodifiableCollections extends Object
Provides a set of methods that produce unmodifiable copies of collections.- Since:
- 4.0.0
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static <K,V>
Map<K,V>buildMap(Consumer<Map<K,V>> handler)
Build an unmodifiable map.static <E> List<E>
copyOf(List<E> original)
Creates an unmodifiable copy of the givenList
instance.static <E> Set<E>
copyOf(Set<E> original)
Creates an unmodifiable copy of the givenSet
instance.static <K,V>
Map.Entry<K,V>immutableMapEntry(K key, V value)
Creates an immutable instance ofMap.Entry
.static <E> List<E>
toList(E... original)
Creates an unmodifiable copy of the given array as a list, preserving order.static <E> Set<E>
toSet(E... original)
Creates an unmodifiable copy of the given array as a set.
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Method Detail
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copyOf
public static <E> List<E> copyOf(List<E> original)
Creates an unmodifiable copy of the givenList
instance.- Type Parameters:
E
- the type of every item in the entry- Parameters:
original
- the list to be copied- Returns:
- a unmodifiable copy of the given
List
instance - Since:
- 4.0.0
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copyOf
public static <E> Set<E> copyOf(Set<E> original)
Creates an unmodifiable copy of the givenSet
instance.- Type Parameters:
E
- the type of every item in the entry- Parameters:
original
- the set to be copied- Returns:
- a unmodifiable copy of the given
Set
instance - Since:
- 4.0.0
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toList
@SafeVarargs public static <E> List<E> toList(E... original)
Creates an unmodifiable copy of the given array as a list, preserving order.- Type Parameters:
E
- the type of every item in the entry- Parameters:
original
- the array to be copied into a list- Returns:
- a unmodifiable copy of the given array as a
List
instance - Since:
- 4.0.0
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toSet
@SafeVarargs public static <E> Set<E> toSet(E... original)
Creates an unmodifiable copy of the given array as a set.- Type Parameters:
E
- the type of every item in the entry- Parameters:
original
- the array to be copied into a set- Returns:
- a unmodifiable copy of the given array as a
Set
instance - Since:
- 4.0.0
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buildMap
public static <K,V> Map<K,V> buildMap(Consumer<Map<K,V>> handler)
Build an unmodifiable map.- Type Parameters:
K
- key typeV
- value type- Parameters:
handler
- consumer that will populate the map wih keys- Returns:
- a new unmodifiable map
- Since:
- 4.0.0
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immutableMapEntry
public static <K,V> Map.Entry<K,V> immutableMapEntry(K key, V value)
Creates an immutable instance ofMap.Entry
.- Type Parameters:
K
- the key's typeV
- the value's type- Parameters:
key
- the key in the entryvalue
- the value in the entry- Returns:
- the new map entry
- Since:
- 4.0.0
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