/*
* 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 org.apache.jmeter.threads;
import org.apache.jmeter.testelement.TestElement;
/**
* Bug 53796 - TestCompiler uses static Set which can grow huge
*
* This interface is a means to allow the pair data to be saved with the parent
* instance, thus allowing it to be garbage collected when the thread completes.
*
* This uses a bit more memory, as each controller test element includes the data
* structure to contain the child element. However, there is no need to store the
* parent element.
*
* @since 2.8
*/
public interface TestCompilerHelper {
/**
* Add child test element only if it has not already been added.
* <p>
* Only for use by TestCompiler.
*
* @param child
* the {@link TestElement} to be added
* @return <code>true</code> if the child was added
*/
boolean addTestElementOnce(TestElement child);
}