01: /*
02: * Copyright 2005 Joe Walker
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
10: * Unless required by applicable law or agreed to in writing, software
11: * distributed under the License is distributed on an "AS IS" BASIS,
12: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13: * See the License for the specific language governing permissions and
14: * limitations under the License.
15: */
16: package org.directwebremoting.convert;
17:
18: import org.directwebremoting.extend.Converter;
19: import org.directwebremoting.extend.ConverterManager;
20: import org.directwebremoting.extend.InboundContext;
21: import org.directwebremoting.extend.InboundVariable;
22: import org.directwebremoting.extend.NonNestedOutboundVariable;
23: import org.directwebremoting.extend.OutboundContext;
24: import org.directwebremoting.extend.OutboundVariable;
25:
26: /**
27: * An implementation of Converter for null and undefined.
28: * @author Joe Walker [joe at getahead dot ltd dot uk]
29: */
30: public class NullConverter implements Converter {
31: /* (non-Javadoc)
32: * @see org.directwebremoting.Converter#setConverterManager(org.directwebremoting.ConverterManager)
33: */
34: public void setConverterManager(ConverterManager converterManager) {
35: }
36:
37: /* (non-Javadoc)
38: * @see org.directwebremoting.Converter#convertInbound(java.lang.Class, org.directwebremoting.InboundVariable, org.directwebremoting.InboundContext)
39: */
40: public Object convertInbound(Class<?> paramType,
41: InboundVariable data, InboundContext inctx) {
42: return null;
43: }
44:
45: /* (non-Javadoc)
46: * @see org.directwebremoting.Converter#convertOutbound(java.lang.Object, org.directwebremoting.OutboundContext)
47: */
48: public OutboundVariable convertOutbound(Object data,
49: OutboundContext outctx) {
50: return new NonNestedOutboundVariable("null");
51: }
52: }
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