| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 |
| * |
| * http://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 freemarker.core; |
| |
| import freemarker.template.SimpleScalar; |
| import freemarker.template.TemplateModel; |
| import freemarker.template.TemplateScalarModel; |
| import freemarker.template.TemplateSequenceModel; |
| |
| /** |
| * Sequence variable implementation that wraps a String[] with relatively low |
| * resource utilization. Warning: it does not copy the wrapped array, so do |
| * not modify that after the model was made! |
| */ |
| public class StringArraySequence implements TemplateSequenceModel { |
| private String[] stringArray; |
| private TemplateScalarModel[] array; |
| |
| /** |
| * Warning: Does not copy the argument array! |
| */ |
| public StringArraySequence(String[] stringArray) { |
| this.stringArray = stringArray; |
| } |
| |
| @Override |
| public TemplateModel get(int index) { |
| if (array == null) { |
| array = new TemplateScalarModel[stringArray.length]; |
| } |
| TemplateScalarModel result = array[index]; |
| if (result == null) { |
| result = new SimpleScalar(stringArray[index]); |
| array[index] = result; |
| } |
| return result; |
| } |
| |
| @Override |
| public int size() { |
| return stringArray.length; |
| } |
| } |