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/*
* Copyright (c) 2018-2020 bartimaeusnek Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following
* conditions: The above copyright notice and this permission notice shall be included in all copies or substantial
* portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
package bartworks.util;
import java.util.Collection;
import java.util.HashSet;
public class NonNullWrappedHashSet<E> extends HashSet<E> {
private static final long serialVersionUID = 8377161849188229010L;
public NonNullWrappedHashSet() {}
public NonNullWrappedHashSet(Collection<? extends E> c) {
this.addAll(c);
}
public NonNullWrappedHashSet(int initialCapacity, float loadFactor) {
super(initialCapacity, loadFactor);
}
public NonNullWrappedHashSet(int initialCapacity) {
super(initialCapacity);
}
@Override
public boolean add(E e) {
if (e != null) return super.add(e);
return false;
}
@Override
public boolean addAll(Collection<? extends E> c) {
boolean wasChanged = false;
for (E element : c) {
if (element != null) wasChanged |= this.add(element);
}
return wasChanged;
}
}
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