67 lines
2.2 KiB
Java
67 lines
2.2 KiB
Java
/*
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* PlotSquared, a land and world management plugin for Minecraft.
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* Copyright (C) IntellectualSites <https://intellectualsites.com>
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* Copyright (C) IntellectualSites 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.plotsquared.core.util.query;
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import com.google.common.base.Preconditions;
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import com.plotsquared.core.plot.Plot;
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import org.checkerframework.checker.nullness.qual.NonNull;
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import java.util.Collections;
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import java.util.List;
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/**
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* Paginated collection of plots as a result of a {@link PlotQuery query}
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*/
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public final class PaginatedPlotResult {
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private final List<Plot> plots;
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private final int pageSize;
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PaginatedPlotResult(final @NonNull List<Plot> plots, final int pageSize) {
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this.plots = plots;
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this.pageSize = pageSize;
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}
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/**
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* Get the plots belonging to a certain page.
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*
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* @param page Positive page number. Indexed from 1
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* @return Plots that belong to the specified page
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*/
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public List<Plot> getPage(final int page) {
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Preconditions.checkState(page >= 0, "Page must be positive");
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final int from = (page - 1) * this.pageSize;
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if (this.plots.size() < from) {
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return Collections.emptyList();
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}
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final int to = Math.max(from + pageSize, this.plots.size());
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return this.plots.subList(from, to);
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}
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/**
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* Get the number of available pages
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*
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* @return Available pages
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*/
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public int getPages() {
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return (int) Math.ceil((double) plots.size() / (double) pageSize);
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}
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}
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