01: package org.apache.velocity.util;
02:
03: /*
04: * Licensed to the Apache Software Foundation (ASF) under one
05: * or more contributor license agreements. See the NOTICE file
06: * distributed with this work for additional information
07: * regarding copyright ownership. The ASF licenses this file
08: * to you under the Apache License, Version 2.0 (the
09: * "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: */
28: public interface TemplateNumber {
29:
30: /**
31: * Returns a Number that can be used in a template.
32: * @return A Number that can be used in a template.
33: */
34: public Number getAsNumber();
35:
36: }
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