geronimo-opentracing-spec/src/main/java/io/opentracing/ScopeManager.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 io.opentracing;

/**
 * Abstracts span contextuality.
 */
public interface ScopeManager {

    /**
     * Set the active span.
     */
    Scope activate(Span span, boolean finishSpanOnClose);

    /**
     * @return current active span.
     */
    Scope active();
}