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[New] Added MapOfMaps.computeIfAbsent(T, U, Supplier<V>) 

This allows one to compute the value for the two keys
This commit is contained in:
Robert von Burg 2021-09-21 20:31:25 +02:00
parent 6c43e54a93
commit 86a23fa056
1 changed files with 7 additions and 0 deletions
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7
li.strolch.utils/src/main/java/li/strolch/utils/collections/MapOfMaps.java
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@ -19,6 +19,7 @@ import java.util.*;
import java.util.Map.Entry;
import java.util.function.BiConsumer;
import java.util.function.Function;
import java.util.function.Supplier;
import java.util.stream.Stream;
/**
@ -228,6 +229,12 @@ public class MapOfMaps<T, U, V> {
return u;
}
public V computeIfAbsent(T t, U u, Supplier<V> mappingFunction) {
Objects.requireNonNull(mappingFunction);
Map<U, V> uvMap = this.mapOfMaps.computeIfAbsent(t, k -> getMap());
return uvMap.computeIfAbsent(u, k -> mappingFunction.get());
}
public void forEach(BiConsumer<? super T, ? super Map<U, V>> action) {
Objects.requireNonNull(action);
for (Map.Entry<T, Map<U, V>> entry : this.mapOfMaps.entrySet()) {