org.jboss.ejb.client.ThreadLocalContextSelector Maven / Gradle / Ivy

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 * JBoss, Home of Professional Open Source.
 * Copyright 2011, Red Hat, Inc., and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.jboss.ejb.client;

/**
 * A context selector which uses thread-local storage.
 *
 * @param  the context type
 * @author David M. Lloyd
 */
public final class ThreadLocalContextSelector implements ContextSelector {
    private final ThreadLocal storage;

    /**
     * Construct a new instance.
     *
     * @param storage the thread-local from which the value should be selected
     */
    public ThreadLocalContextSelector(final ThreadLocal storage) {
        this.storage = storage;
    }

    public T getCurrent() {
        return storage.get();
    }

    void setCurrent(T newValue) {
        storage.set(newValue);
    }
}