| /* |
| * 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.TemplateCollectionModelEx; |
| import freemarker.template.TemplateModelException; |
| import freemarker.template.TemplateModelIterator; |
| import freemarker.template.utility.NullArgumentException; |
| |
| /** |
| * Used instead of {@link LazilyGeneratedCollectionModel} for operations that don't change the element count of the |
| * source, if the source can also give back an element count. |
| */ |
| class LazilyGeneratedCollectionModelWithSameSizeCollEx extends LazilyGeneratedCollectionModelEx { |
| private final TemplateCollectionModelEx sizeSourceCollEx; |
| |
| public LazilyGeneratedCollectionModelWithSameSizeCollEx( |
| TemplateModelIterator iterator, TemplateCollectionModelEx sizeSourceCollEx, boolean sequenceSourced) { |
| super(iterator, sequenceSourced); |
| NullArgumentException.check(sizeSourceCollEx); |
| this.sizeSourceCollEx = sizeSourceCollEx; |
| } |
| |
| @Override |
| public int size() throws TemplateModelException { |
| return sizeSourceCollEx.size(); |
| } |
| |
| @Override |
| public boolean isEmpty() throws TemplateModelException { |
| return sizeSourceCollEx.isEmpty(); |
| } |
| |
| @Override |
| protected LazilyGeneratedCollectionModelWithSameSizeCollEx withIsSequenceFromFalseToTrue() { |
| return new LazilyGeneratedCollectionModelWithSameSizeCollEx(getIterator(), sizeSourceCollEx, true); |
| } |
| } |