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Java example source code file (

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

Learn more about this Java project at its project page.

Java - Java tags/keywords

datetimefield, delegateddatetimefield, lenientdatetimefield, strictdatetimefield

The Java example source code

 *  Copyright 2001-2005 Stephen Colebourne
 *  Licensed 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
 *  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.joda.time.field;

import org.joda.time.DateTimeField;

 * Converts a lenient DateTimeField into a strict one. By being strict, the set
 * throws an IllegalArgumentException if the value is out of bounds.
 * <p>
 * StrictDateTimeField is thread-safe and immutable.
 * @author Brian S O'Neill
 * @see org.joda.time.chrono.StrictChronology
 * @see LenientDateTimeField
 * @since 1.0
public class StrictDateTimeField extends DelegatedDateTimeField {

    private static final long serialVersionUID = 3154803964207950910L;

     * Returns a strict version of the given field. If it is already strict,
     * then it is returned as-is. Otherwise, a new StrictDateTimeField is
     * returned.
    public static DateTimeField getInstance(DateTimeField field) {
        if (field == null) {
            return null;
        if (field instanceof LenientDateTimeField) {
            field = ((LenientDateTimeField)field).getWrappedField();
        if (!field.isLenient()) {
            return field;
        return new StrictDateTimeField(field);

    protected StrictDateTimeField(DateTimeField field) {

    public final boolean isLenient() {
        return false;

     * Does a bounds check before setting the value.
     * @throws IllegalArgumentException if the value is invalid
    public long set(long instant, int value) {
            (this, value, getMinimumValue(instant), getMaximumValue(instant));
        return super.set(instant, value);

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