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Add ImmutableHashSet

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JeremyStar™ 2024-07-20 18:22:14 +02:00
parent be74555064
commit 85e6cd69de
Signed by: JeremyStarTM
GPG key ID: E366BAEF67E4704D
1 changed files with 123 additions and 0 deletions
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base/src/main/java/de/staropensource/sosengine/base/types/immutable/ImmutableHashSet.java Normal file
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/*
* STAROPENSOURCE ENGINE SOURCE FILE
* Copyright (c) 2024 The StarOpenSource Engine Contributors
* Licensed under the GNU Affero General Public License v3
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package de.staropensource.sosengine.base.types.immutable;
import org.jetbrains.annotations.NotNull;
import java.util.Collection;
import java.util.HashSet;
import java.util.Set;
import java.util.function.Predicate;
/**
* An unmodifiable {@link HashSet}.
*
* @param <E> contained type
* @since v1-alpha2
*/
@SuppressWarnings({ "unused" })
public class ImmutableHashSet<E> extends HashSet<E> {
/**
* Creates a new immutable hash set.
*
* @since v1-alpha2
*/
public ImmutableHashSet() {}
/**
* Converts a {@link Set} into an {@link ImmutableHashSet}.
*
* @param set {@link Set} to convert
* @since v1-alpha2
*/
public ImmutableHashSet(@NotNull Set<E> set) {
super.addAll(set);
}
/**
* {@inheritDoc}
*
* @throws UnsupportedOperationException always, array list is immutable
*/
@Override
public boolean add(Object o) {
throw new UnsupportedOperationException("This method cannot be executed on an ImmutableHashSet");
}
/**
* {@inheritDoc}
*
* @throws UnsupportedOperationException always, array list is immutable
*/
@Override
public boolean remove(Object o) {
throw new UnsupportedOperationException("This method cannot be executed on an ImmutableHashSet");
}
/**
* {@inheritDoc}
*
* @throws UnsupportedOperationException always, array list is immutable
*/
@Override
public boolean addAll(@NotNull Collection collection) {
throw new UnsupportedOperationException("This method cannot be executed on an ImmutableHashSet");
}
/**
* {@inheritDoc}
*
* @throws UnsupportedOperationException always, array list is immutable
*/
@Override
public boolean retainAll(@NotNull Collection collection) {
throw new UnsupportedOperationException("This method cannot be executed on an ImmutableHashSet");
}
/**
* {@inheritDoc}
*
* @throws UnsupportedOperationException always, array list is immutable
*/
@Override
public boolean removeIf(Predicate filter) {
throw new UnsupportedOperationException("This method cannot be executed on an ImmutableHashSet");
}
/**
* {@inheritDoc}
*
* @throws UnsupportedOperationException always, array list is immutable
*/
@Override
public void clear() {
throw new UnsupportedOperationException("This method cannot be executed on an ImmutableHashSet");
}
/**
* {@inheritDoc}
*
* @throws UnsupportedOperationException always, array list is immutable
*/
@Override
public boolean removeAll(@NotNull Collection collection) {
throw new UnsupportedOperationException("This method cannot be executed on an ImmutableHashSet");
}
}