001    // Copyright 2011 The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    //     http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    
015    package org.apache.tapestry5.jpa;
016    
017    import java.util.Collection;
018    
019    import org.apache.tapestry5.ioc.annotations.UsesConfiguration;
020    
021    /**
022     * Contains a set of contributed package names from which to load entities.
023     * <p/>
024     * The service's configuration is the names of Java packages to search for JPA entities.
025     * 
026     * @since 5.3
027     */
028    @UsesConfiguration(String.class)
029    public interface JpaEntityPackageManager
030    {
031        /**
032         * Returns packages from which read entity classes
033         */
034        Collection<String> getPackageNames();
035    }