| /* |
| * 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; |
| |
| /** |
| * "string" template language data-type; like in Java, an unmodifiable UNICODE character sequence. |
| * (The name of this interface should be {@code TemplateStringModel}. The misnomer is inherited from the |
| * old times, when this was the only single-value type in FreeMarker.) |
| */ |
| public interface TemplateScalarModel extends TemplateModel { |
| |
| /** |
| * A constant value to use as the empty string. |
| */ |
| public TemplateModel EMPTY_STRING = new SimpleScalar(""); |
| |
| /** |
| * Returns the string representation of this model. Don't return {@code null}, as that will cause exception. (In |
| * classic-compatible mode the engine will convert {@code null} into empty string, though.) |
| * |
| * <p> |
| * Objects of this type should be immutable, that is, calling {@link #getAsString()} should always return the same |
| * value as for the first time. |
| */ |
| public String getAsString() throws TemplateModelException; |
| |
| } |