com.sun.enterprise.deployment.annotation.introspection.EjbComponentAnnotationScanner Maven / Gradle / Ivy

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/*
 * Copyright (c) 1997, 2021 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package com.sun.enterprise.deployment.annotation.introspection;

import java.util.HashSet;
import java.util.Set;

import org.jvnet.hk2.annotations.Service;

import jakarta.inject.Singleton;

/**
 * This class contains the following annotation type: jakarta.ejb.Stateless jakarta.ejb.Stateful jakarta.ejb.MessageDriven
 *
 * @author Qingqing Ouyang
 */
@Service(name = "ejb")
@Singleton
public class EjbComponentAnnotationScanner implements AnnotationScanner {

    private Set annotations;

    @Override
    public boolean isAnnotation(String value) {
        if (annotations == null) {
            synchronized (EjbComponentAnnotationScanner.class) {
                if (annotations == null)
                    init();
            }
        }
        return annotations.contains(value);
    }

    @Override
    public Set getAnnotations() {
        return AbstractAnnotationScanner.constantPoolToFQCN(annotations);
    }

    private void init() {
        annotations = new HashSet<>();
        annotations.add("Ljakarta/ejb/Stateless;");
        annotations.add("Ljakarta/ejb/Stateful;");
        annotations.add("Ljakarta/ejb/MessageDriven;");
        annotations.add("Ljakarta/ejb/Singleton;");
    }
}