01: /*
02:
03: Derby - Class org.apache.derby.iapi.services.stream.PrintWriterGetHeader
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.services.stream;
23:
24: /**
25: * Get a header to prepend to a line of output.
26: * A HeaderPrintWriter requires an object which implements
27: * this interface to construct headers for output lines.
28: *
29: * @see org.apache.derby.iapi.services.stream.HeaderPrintWriter
30: */
31:
32: public interface PrintWriterGetHeader {
33: /**
34: * getHeader
35: *
36: * @return The header for an output line.
37: *
38: * @see org.apache.derby.iapi.services.stream.HeaderPrintWriter
39: **/
40:
41: public String getHeader();
42: }
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