# ImportedServiceDeclaration.java

    /*
     * Copyright 2008 Niclas Hedhman. All rights Reserved.
     * Copyright 2012, Paul Merlin.
     *
     * Licensed  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.qi4j.bootstrap;

    import org.qi4j.api.activation.Activator;
    import org.qi4j.api.common.Visibility;
    import org.qi4j.api.service.ServiceImporter;
    import org.qi4j.api.service.importer.InstanceImporter;
    import org.qi4j.api.service.importer.NewObjectImporter;
    import org.qi4j.api.service.importer.ServiceInstanceImporter;
    import org.qi4j.api.service.importer.ServiceSelectorImporter;

    /**
     * Fluent API for declaring imported services. Instances
     * of this API are acquired by calling {@link ModuleAssembly#importedServices(Class[])}.
     */
    public interface ImportedServiceDeclaration
    {
        // Convenience constants for common service importers
        public static final Class<? extends ServiceImporter> INSTANCE = InstanceImporter.class;
        public static final Class<? extends ServiceImporter> NEW_OBJECT = NewObjectImporter.class;
        public static final Class<? extends ServiceImporter> SERVICE_SELECTOR = ServiceSelectorImporter.class;
        public static final Class<? extends ServiceImporter> SERVICE_IMPORTER = ServiceInstanceImporter.class;

        ImportedServiceDeclaration visibleIn( Visibility visibility );

        ImportedServiceDeclaration importedBy( Class<? extends ServiceImporter> serviceImporterClass );

        ImportedServiceDeclaration identifiedBy( String identity );

        ImportedServiceDeclaration taggedWith( String... tags );

        ImportedServiceDeclaration setMetaInfo( Object serviceAttribute );

        ImportedServiceDeclaration importOnStartup();

        /**
         * Set the imported service activators. Activators are executed in order around
         * the ServiceReference activation and passivation.
         *
         * @param activators the imported service activators
         * @return the assembly
         */
        @SuppressWarnings( { "unchecked","varargs" } )
        ImportedServiceDeclaration withActivators( Class<? extends Activator<?>>... activators );
    }