01: /*
02:
03: Derby - Class org.apache.derby.iapi.sql.compile.Visitable
04:
05: Licensed to the Apache Software Foundation (ASF) under one or more
06: contributor license agreements. See the NOTICE file distributed with
07: this work for additional information regarding copyright ownership.
08: The ASF licenses this file to you under the Apache License, Version 2.0
09: (the "License"); you may not use this file except in compliance with
10: 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, software
15: distributed under the License is distributed on an "AS IS" BASIS,
16: WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17: See the License for the specific language governing permissions and
18: limitations under the License.
19:
20: */
21:
22: package org.apache.derby.iapi.sql.compile;
23:
24: import org.apache.derby.iapi.error.StandardException;
25:
26: /**
27: * A Visitable is something that can be visited by
28: * a Visitor
29: *
30: * @author jamie
31: */
32: public interface Visitable {
33: /**
34: * Accept a visitor, and call v.visit()
35: * on child nodes as necessary.
36: *
37: * @param v the visitor
38: *
39: * @exception StandardException on error
40: */
41: abstract Visitable accept(Visitor v) throws StandardException;
42: }
|