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A Java library to parse, migrate and validate crons as well as describe them in human readable language

There is a newer version: 9.2.1

/*
 * Copyright 2015 jmrozanec
 * 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
 * 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 com.cronutils.model.field.expression;

import java.util.List;

import com.cronutils.model.field.value.IntegerFieldValue;
import com.cronutils.model.field.value.SpecialChar;
import com.cronutils.model.field.value.SpecialCharFieldValue;

public class FieldExpressionFactory {
    private FieldExpressionFactory() {
    }

    public static Always always() {
        return Always.INSTANCE;
    }

    public static Between between(int from, int to) {
        return new Between(new IntegerFieldValue(from), new IntegerFieldValue(to));
    }

    public static Between between(SpecialChar from, int to) {
        return new Between(new SpecialCharFieldValue(from), new IntegerFieldValue(to));
    }

    public static Every every(int time) {
        return new Every(new IntegerFieldValue(time));
    }

    public static Every every(FieldExpression expression, int time) {
        return new Every(expression, new IntegerFieldValue(time));
    }

    public static On on(SpecialChar specialChar) {
        return new On(new SpecialCharFieldValue(specialChar));
    }

    public static On on(int time) {
        return new On(new IntegerFieldValue(time));
    }

    public static On on(int time, SpecialChar specialChar) {
        return new On(new IntegerFieldValue(time), new SpecialCharFieldValue(specialChar));
    }

    public static On on(int time, SpecialChar specialChar, int nth) {
        return new On(new IntegerFieldValue(time), new SpecialCharFieldValue(specialChar), new IntegerFieldValue(nth));
    }

    public static QuestionMark questionMark() {
        return QuestionMark.INSTANCE;
    }

    public static And and(List expressions) {
        And and = new And();
        for (FieldExpression expression : expressions) {
            and.and(expression);
        }
        return and;
    }
}