MockZeroable.java

/*
 * Strongback
 * Copyright 2015, Strongback and individual contributors by the @authors tag.
 * See the COPYRIGHT.txt in the distribution for a full listing of individual
 * contributors.
 *
 * Licensed under the MIT License; you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://opensource.org/licenses/MIT
 * 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.strongback.mock;

import org.strongback.components.Zeroable;

/**
 * A base class for other mock components that implement {@link Zeroable}.
 *
 * @author Randall Hauch
 */
abstract class MockZeroable implements Zeroable {

    private volatile double zero = 0;
    private volatile double value;

    protected double getValue() {
        return value - zero;
    }

    protected void setValue( double value) {
        this.value = value;
    }

    @Override
    public MockZeroable zero() {
        zero = value;
        return this;
    }
}