org.springframework.web.servlet.view.tiles3.TilesViewResolver.java Source code

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Here is the source code for org.springframework.web.servlet.view.tiles3.TilesViewResolver.java

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/*
 * Copyright 2002-2017 the original author or authors.
 *
 * 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
 *
 *      https://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.springframework.web.servlet.view.tiles3;

import org.apache.tiles.request.render.Renderer;

import org.springframework.lang.Nullable;
import org.springframework.web.servlet.view.UrlBasedViewResolver;

/**
 * Convenience subclass of {@link UrlBasedViewResolver} that supports
 * {@link TilesView} (i.e. Tiles definitions) and custom subclasses of it.
 *
 * @author Nicolas Le Bas
 * @author Rossen Stoyanchev
 * @author Juergen Hoeller
 * @author Sebastien Deleuze
 * @since 3.2
 */
public class TilesViewResolver extends UrlBasedViewResolver {

    @Nullable
    private Renderer renderer;

    @Nullable
    private Boolean alwaysInclude;

    public TilesViewResolver() {
        setViewClass(requiredViewClass());
    }

    /**
     * This resolver requires {@link TilesView}.
     */
    @Override
    protected Class<?> requiredViewClass() {
        return TilesView.class;
    }

    /**
     * Set the {@link Renderer} to use. If not specified, a default
     * {@link org.apache.tiles.renderer.DefinitionRenderer} will be used.
     * @see TilesView#setRenderer(Renderer)
     */
    public void setRenderer(Renderer renderer) {
        this.renderer = renderer;
    }

    /**
     * Specify whether to always include the view rather than forward to it.
     * <p>Default is "false". Switch this flag on to enforce the use of a
     * Servlet include, even if a forward would be possible.
     * @since 4.1.2
     * @see TilesView#setAlwaysInclude
     */
    public void setAlwaysInclude(Boolean alwaysInclude) {
        this.alwaysInclude = alwaysInclude;
    }

    @Override
    protected TilesView buildView(String viewName) throws Exception {
        TilesView view = (TilesView) super.buildView(viewName);
        if (this.renderer != null) {
            view.setRenderer(this.renderer);
        }
        if (this.alwaysInclude != null) {
            view.setAlwaysInclude(this.alwaysInclude);
        }
        return view;
    }

}