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80 lines
2.1 KiB
Java
80 lines
2.1 KiB
Java
/*
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* WorldEdit, a Minecraft world manipulation toolkit
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* Copyright (C) sk89q <http://www.sk89q.com>
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* Copyright (C) WorldEdit team and contributors
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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 <https://www.gnu.org/licenses/>.
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*/
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package com.sk89q.worldedit.registry;
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import java.util.HashSet;
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import java.util.Set;
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public abstract class Category<T extends Keyed> implements RegistryItem {
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private final Set<T> set = new HashSet<>();
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protected final String id;
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private boolean empty = true;
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protected Category(final String id) {
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this.id = id;
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}
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public final String getId() {
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return this.id;
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}
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public final Set<T> getAll() {
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if (this.empty) {
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this.set.addAll(this.load());
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this.empty = false;
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}
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return this.set;
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}
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private int internalId;
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@Override
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public void setInternalId(int internalId) {
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this.internalId = internalId;
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}
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@Override
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public int getInternalId() {
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return internalId;
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}
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protected abstract Set<T> load();
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/**
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* Checks if this category contains {@code object}.
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*
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* @param object the object
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* @return {@code true} if this category contains the object
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*/
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public boolean contains(final T object) {
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return this.getAll().contains(object);
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}
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public void invalidateCache() {
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this.set.clear();
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this.empty = true;
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}
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@Override
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public String toString() {
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return getId();
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}
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}
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