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.javascript;
014
015/**
016 * Used with {@link org.apache.tapestry5.services.javascript.JavaScriptStack} to identify how libraries and modules
017 * within the stack can be aggregated.
018 *
019 * @since 5.4
020 */
021public enum JavaScriptAggregationStrategy
022{
023    /**
024     * The default strategy is to combine all the assets and minimize them together.
025     */
026    COMBINE_AND_MINIMIZE,
027
028    /**
029     * Alternately, the assets can be combined, but not minimized (because some resources
030     * do not support minimization).
031     */
032    COMBINE_ONLY,
033
034    /**
035     * The assets are not combined or minimized at all.
036     */
037    DO_NOTHING;
038
039    public boolean enablesCombine() { return this != DO_NOTHING; }
040
041    public boolean enablesMinimize() { return this == COMBINE_AND_MINIMIZE; }
042}