org.hibernate.service.spi.ServiceBinding.java Source code

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Here is the source code for org.hibernate.service.spi.ServiceBinding.java

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/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
 * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
 */
package org.hibernate.service.spi;

import org.hibernate.service.Service;

import org.jboss.logging.Logger;

/**
 * Models a binding for a particular service
 *
 * @author Steve Ebersole
 */
public final class ServiceBinding<R extends Service> {
    private static final Logger log = Logger.getLogger(ServiceBinding.class);

    public static interface ServiceLifecycleOwner {
        public <R extends Service> R initiateService(ServiceInitiator<R> serviceInitiator);

        public <R extends Service> void configureService(ServiceBinding<R> binding);

        public <R extends Service> void injectDependencies(ServiceBinding<R> binding);

        public <R extends Service> void startService(ServiceBinding<R> binding);

        public <R extends Service> void stopService(ServiceBinding<R> binding);
    }

    private final ServiceLifecycleOwner lifecycleOwner;
    private final Class<R> serviceRole;
    private final ServiceInitiator<R> serviceInitiator;
    private volatile R service;

    public ServiceBinding(ServiceLifecycleOwner lifecycleOwner, Class<R> serviceRole, R service) {
        this.lifecycleOwner = lifecycleOwner;
        this.serviceRole = serviceRole;
        this.serviceInitiator = null;
        this.service = service;
    }

    public ServiceBinding(ServiceLifecycleOwner lifecycleOwner, ServiceInitiator<R> serviceInitiator) {
        this.lifecycleOwner = lifecycleOwner;
        this.serviceRole = serviceInitiator.getServiceInitiated();
        this.serviceInitiator = serviceInitiator;
    }

    public ServiceLifecycleOwner getLifecycleOwner() {
        return lifecycleOwner;
    }

    public Class<R> getServiceRole() {
        return serviceRole;
    }

    public ServiceInitiator<R> getServiceInitiator() {
        return serviceInitiator;
    }

    public R getService() {
        return service;
    }

    public void setService(R service) {
        if (this.service != null) {
            if (log.isDebugEnabled()) {
                log.debug("Overriding existing service binding [" + serviceRole.getName() + "]");
            }
        }
        this.service = service;
    }
}