IntegerRange.java

/*
 * Copyright (c) 2013, Francis Galiegue <fgaliegue@gmail.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the Lesser 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
 * Lesser 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 com.github.fge.jsonschema;

import java.util.NoSuchElementException;

final class IntegerRange
    extends Range<Integer>
{
    private final int to;
    private final int step;

    private int next;

    IntegerRange(final int from, final int to, final int step)
    {
        this.to = to;
        this.step = step;

        next = from;
    }


    @Override
    public boolean hasNext()
    {
        return next <= to;
    }

    @Override
    public Integer next()
    {
        if (!hasNext())
            throw new NoSuchElementException();
        final int ret = next;
        next += step;
        return ret;
    }
}