    001// Licensed under the Apache License, Version 2.0 (the "License");
    002// you may not use this file except in compliance with the License.
    003// You may obtain a copy of the License at
    004//
    005// http://www.apache.org/licenses/LICENSE-2.0
    006//
    007// Unless required by applicable law or agreed to in writing, software
    008// distributed under the License is distributed on an "AS IS" BASIS,
    009// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    010// See the License for the specific language governing permissions and
    011// limitations under the License.
    012
    013package org.apache.tapestry5.services.pageload;
    014
    015/**
    016 * Identifies when the {@link org.apache.tapestry5.services.pageload.PagePreloader}
    017 * should perform its loading.
    018 *
    019 * @since 5.4
    020 */
    021public enum PreloaderMode
    022{
    023    NEVER, ALWAYS, DEVELOPMENT, PRODUCTION;
    024
    025    public boolean isEnabledFor(boolean productionMode)
    026    {
    027        if (this == NEVER)
    028        {
    029            return false;
    030        }
    031
    032        if (this == ALWAYS)
    033        {
    034            return true;
    035        }
    036
    037        return (this == PRODUCTION) == productionMode;
    038    }
    039}