/*
 * Copyright 2018 NAVER Corp.
 *
 * 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.navercorp.pinpoint.profiler.context;

import com.navercorp.pinpoint.bootstrap.context.FrameAttachment;

/**
 * @author Woonduk Kang(emeroad)
 */
public class DefaultFrameAttachment implements FrameAttachment {

    private Object frameObject;

    @Override
    public Object attachFrameObject(Object attachObject) {
        final Object before = this.frameObject;
        this.frameObject = attachObject;
        return before;
    }

    @Override
    public Object getFrameObject() {
        return this.frameObject;
    }

    @Override
    public Object detachFrameObject() {
        final Object delete = this.frameObject;
        this.frameObject = null;
        return delete;
    }
}
