001/*
002 * SonarQube
003 * Copyright (C) 2009-2017 SonarSource SA
004 * mailto:info AT sonarsource DOT com
005 *
006 * This program is free software; you can redistribute it and/or
007 * modify it under the terms of the GNU Lesser General Public
008 * License as published by the Free Software Foundation; either
009 * version 3 of the License, or (at your option) any later version.
010 *
011 * This program is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014 * Lesser General Public License for more details.
015 *
016 * You should have received a copy of the GNU Lesser General Public License
017 * along with this program; if not, write to the Free Software Foundation,
018 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
019 */
020package org.sonar.api.batch;
021
022import java.lang.annotation.ElementType;
023import java.lang.annotation.Retention;
024import java.lang.annotation.RetentionPolicy;
025import java.lang.annotation.Target;
026
027/**
028 * Define instantiation strategy of batch IoC components. If a component is not annotated, then default value
029 * is {@link org.sonar.api.batch.InstantiationStrategy#PER_PROJECT}.
030 * @since 4.4
031 */
032@Retention(RetentionPolicy.RUNTIME)
033@Target(ElementType.TYPE)
034public @interface InstantiationStrategy {
035
036  /**
037   * Shared task extension. Available in task container.
038   */
039  String PER_TASK = "PER_TASK";
040
041  /**
042   * Shared extension. Available in top level project container.
043   */
044  String PER_BATCH = "PER_BATCH";
045
046  /**
047   * Created and initialized for each project and sub-project (a project is a module in Maven terminology).
048   */
049  String PER_PROJECT = "PER_PROJECT";
050
051  String value();
052}