    001    // Copyright 2006, 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.internal.services;
    016
    017    import org.apache.tapestry5.ComponentResources;
    018    import org.apache.tapestry5.internal.InternalComponentResources;
    019    import org.apache.tapestry5.model.ComponentModel;
    020    import org.apache.tapestry5.plastic.ClassInstantiator;
    021    import org.apache.tapestry5.plastic.InstanceContext;
    022    import org.apache.tapestry5.runtime.Component;
    023
    024    /**
    025     * An object that can instantiate a component. This is now largely a wrapper around {@link ClassInstantiator}.
    026     */
    027    public interface Instantiator
    028    {
    029        /**
    030         * Instantiates and returns a new instance of the desired class. Component classes are always modified so that they
    031         * implement {@link Component} (and often, other interfaces as well). The resources are made available
    032         * in the {@link InstanceContext} as both {@link ComponentResources} and {@link InternalComponentResources}.
    033         */
    034        Component newInstance(InternalComponentResources resources);
    035
    036        /**
    037         * Returns the model that defines the behavior of the component.
    038         */
    039        ComponentModel getModel();
    040    }