MultiMap

class

@DebugEntries Public Class MultiMap<K: Hashable, V> Implements Iterable<(K, V)>, Cloneable, Defaultable

Local tags = MultiMap<String, String>()
tags.Add("fruit", "apple")
tags.Add("fruit", "pear")
tags.Add("veg", "leek")
Expect(tags.Get("fruit") == ["apple", "pear"])
Expect(tags.Count == 3 && tags.KeyCount == 2)
Expect(tags.Get("nuts").Count == 0)

std/collections/multi_map.fb, line 24

• Public New() constructor #

  A new, empty MultiMap.

• Public Property Count: Int property #

  How many values it has, of all the keys.

• Public Property KeyCount: Int property #

  How many keys have values.

• Public Method Add(key: K, value: V) method #

  Adds a value for the key, after the ones it has.

• Public Method AddAll(key: K, values: Iterable<V>) method #

  Adds each of the values for the key, in order, all read first.

• Public Method Get(key: K): V[] method #

  The key's values, in the order they were added, in a new array, which is empty when the key has none.

• Operator [](key: K): V[] operator #

  The same as Get.

• Public Method Contains(key: K): Bool method #

  Whether key has any values.

• Public Method Contains(key: K, value: V): Bool method #

  Whether the key has the value.

• Public Method Remove(key: K, value: V): Bool method #

  Removes the first of the key's values that's equal to value, and tells whether there was one.

• Public Method RemoveKey(key: K): Int method #

  Removes the key and all its values, and gives how many values went.

• Public Method Clear() method #

  Takes every key and value out.

• Public Method Keys(): K[] method #

  The keys that have values, in the order they were added.

• Public Static Method DefaultValue(): MultiMap<K, V> static method #

  A new, empty MultiMap.

• Public Method Clone(): MultiMap<K, V> method #

  A new MultiMap with the same keys and values.

• Public Method Iterate(): MultiMapIterator<K, V> method #

  Each key with each of its values, for 'For key, value In multi', the keys in the order they were added and each one's values in theirs. Adding or removing a value while going over them panics.