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Java example source code file (StepNormalizerBounds.java)

This example Java source code file (StepNormalizerBounds.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

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Java - Java tags/keywords

both, first, last, neither, stepnormalizerbounds

The StepNormalizerBounds.java Java example source code

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.commons.math3.ode.sampling;

/** {@link StepNormalizer Step normalizer} bounds settings. They influence
 * whether the underlying fixed step size step handler is called for the first
 * and last points. Note that if the last point coincides with a normalized
 * point, then the underlying fixed step size step handler is always called,
 * regardless of these settings.
 * @see FieldStepNormalizer
 * @see StepNormalizer
 * @see StepNormalizerMode
 * @since 3.0
 */
public enum StepNormalizerBounds {
    /** Do not include the first and last points. */
    NEITHER(false, false),

    /** Include the first point, but not the last point. */
    FIRST(true, false),

    /** Include the last point, but not the first point. */
    LAST(false, true),

    /** Include both the first and last points. */
    BOTH(true, true);

    /** Whether the first point should be passed to the underlying fixed
     * step size step handler.
     */
    private final boolean first;

    /** Whether the last point should be passed to the underlying fixed
     * step size step handler.
     */
    private final boolean last;

    /**
     * Simple constructor.
     * @param first Whether the first point should be passed to the
     * underlying fixed step size step handler.
     * @param last Whether the last point should be passed to the
     * underlying fixed step size step handler.
     */
    StepNormalizerBounds(final boolean first, final boolean last) {
        this.first = first;
        this.last = last;
    }

    /**
     * Returns a value indicating whether the first point should be passed
     * to the underlying fixed step size step handler.
     * @return value indicating whether the first point should be passed
     * to the underlying fixed step size step handler.
     */
    public boolean firstIncluded() {
        return first;
    }

    /**
     * Returns a value indicating whether the last point should be passed
     * to the underlying fixed step size step handler.
     * @return value indicating whether the last point should be passed
     * to the underlying fixed step size step handler.
     */
    public boolean lastIncluded() {
        return last;
    }
}

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