    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
    015package org.apache.tapestry5.internal.services;
    016
    017import org.apache.tapestry5.ComponentResources;
    018import org.apache.tapestry5.internal.InternalComponentResources;
    019import org.apache.tapestry5.model.ComponentModel;
    020import org.apache.tapestry5.plastic.ClassInstantiator;
    021import org.apache.tapestry5.plastic.InstanceContext;
    022import 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 */
    027public 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}