66 lines
2.0 KiB
Java
66 lines
2.0 KiB
Java
/*
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* Twidere - Twitter client for Android
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*
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* Copyright (C) 2012-2014 Mariotaku Lee <mariotaku.lee@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.mariotaku.twidere.util.collection;
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import java.util.ArrayList;
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import java.util.Collection;
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public class NoDuplicatesArrayList<E> extends ArrayList<E> {
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private static final long serialVersionUID = -7277301117508689125L;
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public NoDuplicatesArrayList() {
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}
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public NoDuplicatesArrayList(final Collection<? extends E> collection) {
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addAll(collection);
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}
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public NoDuplicatesArrayList(final int capacity) {
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super(capacity);
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}
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@Override
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public boolean add(final E e) {
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if (contains(e)) return false;
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return super.add(e);
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}
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@Override
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public void add(final int index, final E element) {
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if (contains(element)) return;
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super.add(index, element);
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}
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@Override
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public boolean addAll(final Collection<? extends E> collection) {
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final Collection<E> copy = new ArrayList<>(collection);
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copy.removeAll(this);
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return super.addAll(copy);
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}
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@Override
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public boolean addAll(final int index, final Collection<? extends E> collection) {
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final Collection<E> copy = new ArrayList<>(collection);
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copy.removeAll(this);
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return super.addAll(index, copy);
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}
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}
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