Package org.sonarsource.analyzer.commons.collections

Class PCollections

java.lang.Object

org.sonarsource.analyzer.commons.collections.PCollections

public final class PCollections
extends Object

Method Summary

Modifier and Type	Method	Description
static <E, V> PMap<E,V>	emptyMap()	Returns a persistent map containing zero mappings.
static <E> PSet<E>	emptySet()	Returns a persistent set containing zero elements.
static <E> PStack<E>	emptyStack()	Returns a persistent stack containing zero elements.

Methods inherited from class java.lang.Object

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

Method Details

emptySet

public static <E> PSet<E> emptySet()

Returns a persistent set containing zero elements.

Type Parameters:

E - the PSet's element type

Returns:

an empty PSet

emptyMap

public static <E,
V> PMap<E,V> emptyMap()

Returns a persistent map containing zero mappings.

Type Parameters:

E - the PMap's key type

V - the PMap's value type

Returns:

an empty PMap

emptyStack

public static <E> PStack<E> emptyStack()

Returns a persistent stack containing zero elements.

Type Parameters:

E - the PStack's element type

Returns:

an empty PStack