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33 lines
623 B
Java
33 lines
623 B
Java
package fr.maxlego08.koth.zcore.utils.map;
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import java.util.HashMap;
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import java.util.Optional;
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public class OptionalHashMap<K, V> extends HashMap<K, V> implements OptionalMap<K, V>{
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/**
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*
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*/
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private static final long serialVersionUID = -1389669310403530512L;
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/**
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*
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* @param key
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* @return {@link Optional}
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*/
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public Optional<V> getOptional(K key) {
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V value = super.getOrDefault(key, null);
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return value == null ? Optional.empty() : Optional.of(value);
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}
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/**
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*
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* @param key
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* @return true if is present
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*/
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public boolean isPresent(K key) {
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return getOptional(key).isPresent();
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}
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}
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