1 package org.apache.velocity.util;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 /**
23 * Any object in the context which implements TemplateNumber will be treated
24 * as a number for the purposes of arithmetic operations and comparison.
25 *
26 * @author <a href="mailto:wglass@forio.com">Will Glass-Husain</a>
27 * @since 1.5
28 */
29 public interface TemplateNumber
30 {
31
32 /**
33 * Returns a Number that can be used in a template.
34 * @return A Number that can be used in a template.
35 */
36 public Number getAsNumber();
37
38 }