io.neow3j.devpack.neo

Class Iterator<K,V>

java.lang.Object

io.neow3j.devpack.neo.Iterator<K,V>

All Implemented Interfaces:

ApiInterface

public class Iterator<K,V>
extends java.lang.Object
implements ApiInterface

A NeoVM-specific iterator used to iterate over a set of key-value elements.

Constructor Summary

Constructors

Constructor and Description
Iterator(Map<K,V> entries) Creates an Iterator over the entries of the given Map.
Iterator(V[] entries) Creates an Iterator over the entries of the given Enumerator.

Method Summary

Modifier and Type	Method and Description
Iterator<K,V>	concat(Iterator<K,V> value) Concatenates the given Iterator to this one.
K	getKey() Gets the key of the element at the current Iterator position.
Enumerator<K>	getKeys() Gets all keys of this Iterator.
V	getValue() Gets the value of the element at the current Iterator position.
Enumerator<V>	getValues() Gets all values of this Iterator.
boolean	next() Moves this Iterator's position to the next element.

Methods inherited from class java.lang.Object

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

Constructor Detail

Iterator

public Iterator(V[] entries)

Creates an Iterator over the entries of the given Enumerator. The keys of the iterator are consecutive integers from 0 up to the size of the Enumerator, i.e., the indices of the entries. Thus, the Iterator's first type parameter should be treated as an Integer.

I.e., Iterator<Integer, String> it = new Iterator(new Enumerator(new String[]{1, 2, 3})

Parameters:

entries - The elements to iterator over.

Iterator

public Iterator(Map<K,V> entries)

Creates an Iterator over the entries of the given Map. The keys and values of the Map become the keys and values of the Iterator.

Parameters:

entries - The map to iterator over.

Method Detail

concat

public Iterator<K,V> concat(Iterator<K,V> value)

Concatenates the given Iterator to this one.

Parameters:

value - The Iterator to concatenate.

Returns:

the concatenated Iterators.

next

public boolean next()

Moves this Iterator's position to the next element.

Returns:

true if there is a next element. False, otherwise.

getKey

public K getKey()

Gets the key of the element at the current Iterator position.

Returns:

the key.

getValue

public V getValue()

Gets the value of the element at the current Iterator position.

Returns:

the value.

getKeys

public Enumerator<K> getKeys()

Gets all keys of this Iterator.

Returns:

the keys.

getValues

public Enumerator<V> getValues()

Gets all values of this Iterator.

Returns:

the values.