| /* |
| * 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.template; |
| |
| /** |
| * "hash" template language data type: an object that contains other objects accessible through string keys |
| * (sub-variable names). |
| * |
| * <p>In templates they are used like {@code myHash.myKey} or {@code myHash[myDynamicKey]}. |
| */ |
| public interface TemplateHashModel extends TemplateModel { |
| |
| /** |
| * Gets a <tt>TemplateModel</tt> from the hash. |
| * |
| * @param key the name by which the <tt>TemplateModel</tt> |
| * is identified in the template. |
| * @return the <tt>TemplateModel</tt> referred to by the key, |
| * or null if not found. |
| */ |
| TemplateModel get(String key) throws TemplateModelException; |
| |
| boolean isEmpty() throws TemplateModelException; |
| } |