    001    /*
    002     * Licensed to the Apache Software Foundation (ASF) under one or more
    003     * contributor license agreements.  See the NOTICE file distributed with
    004     * this work for additional information regarding copyright ownership.
    005     * The ASF licenses this file to You under the Apache License, Version 2.0
    006     * (the "License"); you may not use this file except in compliance with
    007     * the License.  You may obtain a copy of the License at
    008     *
    009     *      http://www.apache.org/licenses/LICENSE-2.0
    010     *
    011     * Unless required by applicable law or agreed to in writing, software
    012     * distributed under the License is distributed on an "AS IS" BASIS,
    013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    014     * See the License for the specific language governing permissions and
    015     * limitations under the License.
    016     */
    017    package org.apache.commons.math3.optim.linear;
    018
    019    import java.util.Set;
    020    import java.util.HashSet;
    021    import java.util.Collection;
    022    import java.util.Collections;
    023    import org.apache.commons.math3.optim.OptimizationData;
    024
    025    /**
    026     * Class that represents a set of {@link LinearConstraint linear constraints}.
    027     *
    028     * @version $Id$
    029     * @since 3.1
    030     */
    031    public class LinearConstraintSet implements OptimizationData {
    032        /** Set of constraints. */
    033        private final Set<LinearConstraint> linearConstraints
    034            = new HashSet<LinearConstraint>();
    035
    036        /**
    037         * Creates a set containing the given constraints.
    038         *
    039         * @param constraints Constraints.
    040         */
    041        public LinearConstraintSet(LinearConstraint... constraints) {
    042            for (LinearConstraint c : constraints) {
    043                linearConstraints.add(c);
    044            }
    045        }
    046
    047        /**
    048         * Creates a set containing the given constraints.
    049         *
    050         * @param constraints Constraints.
    051         */
    052        public LinearConstraintSet(Collection<LinearConstraint> constraints) {
    053            linearConstraints.addAll(constraints);
    054        }
    055
    056        /**
    057         * Gets the set of linear constraints.
    058         *
    059         * @return the constraints.
    060         */
    061        public Collection<LinearConstraint> getConstraints() {
    062            return Collections.unmodifiableSet(linearConstraints);
    063        }
    064    }