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}