scr/src/main/java/org/apache/felix/scr/impl/inject/ComponentConstructor.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.felix.scr.impl.inject;

import java.util.Map;

import org.apache.felix.scr.impl.metadata.ReferenceMetadata;

/**
 * This is used to construct a component instance object, call the constructor
 * and set the activation fields.
 */
public interface ComponentConstructor<S> {

    /**
     * Create a new instance
     * @param componentContext The component context
     * @param parameterMap A map of reference parameters for handling references in the
     *                     constructor
     * @return The instance
     * @throws Exception If anything goes wrong, like constructor can't be found etc.
     */
    <T> S newInstance(final ScrComponentContext componentContext,
            final Map<ReferenceMetadata, OpenStatus<S, ?>> parameterMap)
            throws Exception;

}