--- /dev/null
+/*
+ * Sone - IntegerRangePredicate.java - Copyright © 2013 David Roden
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package net.pterodactylus.sone.utils;
+
+import com.google.common.base.Predicate;
+
+/**
+ * {@link Predicate} that verifies that an {@link Integer} value is not
+ * {@code null} and is between a lower and an upper bound. Both bounds are
+ * inclusive.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+public class IntegerRangePredicate implements Predicate<Integer> {
+
+ /** The lower bound. */
+ private final int lowerBound;
+
+ /** The upper bound. */
+ private final int upperBound;
+
+ /**
+ * Creates a new integer range predicate.
+ *
+ * @param lowerBound
+ * The lower bound
+ * @param upperBound
+ * The upper bound
+ */
+ public IntegerRangePredicate(int lowerBound, int upperBound) {
+ this.lowerBound = lowerBound;
+ this.upperBound = upperBound;
+ }
+
+ //
+ // PREDICATE METHODS
+ //
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public boolean apply(Integer value) {
+ return (value != null) && (value >= lowerBound) && (value <= upperBound);
+ }
+
+}