jdk.util.concurrent.ConcurrentHashMap$KeySetView — clojure-interop/java.util.concurrent 1.0.5

A view of a ConcurrentHashMap as a Set of keys, in which additions may optionally be enabled by mapping to a common value. This class cannot be directly instantiated. See keySet(), keySet(V), newKeySet(), newKeySet(int).

add clj

(add this e)

Adds the specified key to this set view by mapping the key to the default mapped value in the backing map, if defined.

e - key to be added - K

returns: true if this set changed as a result of the call - boolean

throws: java.lang.NullPointerException - if the specified key is null

add-all clj

(add-all this c)

Adds all of the elements in the specified collection to this set, as if by calling add(K) on each one.

c - the elements to be inserted into this set - java.util.Collection

returns: true if this set changed as a result of the call - boolean

throws: java.lang.NullPointerException - if the collection or any of its elements are null

clear clj

(clear this)

Removes all of the elements from this view, by removing all the mappings from the map backing this view.

contains clj

(contains this o)

Returns true if this collection contains the specified element. More formally, returns true if and only if this collection contains at least one element e such that (o==null ? e==null : o.equals(e)).

o - element whose presence in this collection is to be tested - java.lang.Object

returns: true if this collection contains the specified element - boolean

throws: java.lang.NullPointerException - if the specified key is null

contains-all clj

(contains-all this c)

Description copied from interface: Collection

c - collection to be checked for containment in this collection - java.util.Collection

returns: true if this collection contains all of the elements in the specified collection - boolean

empty? clj

(empty? this)

Description copied from interface: Collection

returns: true if this collection contains no elements - boolean

equals clj

(equals this o)

Description copied from class: Object

o - the reference object with which to compare. - java.lang.Object

returns: true if this object is the same as the obj argument; false otherwise. - boolean

for-each clj

(for-each this action)

Description copied from interface: Iterable

action - The action to be performed for each element - java.util.function.Consumer

get-map clj

(get-map this)

Returns the map backing this view.

returns: the map backing this view - java.util.concurrent.ConcurrentHashMap<K,V>

get-mapped-value clj

(get-mapped-value this)

Returns the default mapped value for additions, or null if additions are not supported.

returns: the default mapped value for additions, or null if not supported - V

hash-code clj

(hash-code this)

Description copied from class: Object

returns: a hash code value for this object. - int

iterator clj

(iterator this)

Returns an iterator over the elements in this collection.

The returned iterator is weakly consistent.

returns: an iterator over the keys of the backing map - java.util.Iterator<K>

remove clj

(remove this o)

Removes the key from this map view, by removing the key (and its corresponding value) from the backing map. This method does nothing if the key is not in the map.

o - the key to be removed from the backing map - java.lang.Object

returns: true if the backing map contained the specified key - boolean

throws: java.lang.NullPointerException - if the specified key is null

remove-all clj

(remove-all this c)

Description copied from interface: Collection

c - collection containing elements to be removed from this collection - java.util.Collection

returns: true if this collection changed as a result of the call - boolean

retain-all clj

(retain-all this c)

Description copied from interface: Collection

c - collection containing elements to be retained in this collection - java.util.Collection

returns: true if this collection changed as a result of the call - boolean

size clj

(size this)

Description copied from interface: Collection

returns: the number of elements in this collection - int

spliterator clj

(spliterator this)

Description copied from interface: Set

returns: a Spliterator over the elements in this set - java.util.Spliterator<K>

to-array clj

(to-array this)

(to-array this a)

Description copied from interface: Collection

a - the array into which the elements of this collection are to be stored, if it is big enough; otherwise, a new array of the same runtime type is allocated for this purpose. - T[]

returns: an array containing all of the elements in this collection - <T> T[]

to-string clj

(to-string this)

Returns a string representation of this collection. The string representation consists of the string representations of the collection's elements in the order they are returned by its iterator, enclosed in square brackets ("[]"). Adjacent elements are separated by the characters ", " (comma and space). Elements are converted to strings as by String.valueOf(Object).

returns: a string representation of this collection - java.lang.String