01: /**
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */package org.apache.solr.schema;
17:
18: import org.apache.lucene.search.SortField;
19: import org.apache.solr.search.function.ValueSource;
20: import org.apache.solr.search.function.FloatFieldSource;
21: import org.apache.lucene.document.Fieldable;
22: import org.apache.solr.request.XMLWriter;
23: import org.apache.solr.request.TextResponseWriter;
24:
25: import java.util.Map;
26: import java.io.IOException;
27:
28: /**
29: * @author yonik
30: * @version $Id: DoubleField.java 479793 2006-11-27 22:40:21Z klaas $
31: */
32: public class DoubleField extends FieldType {
33: protected void init(IndexSchema schema, Map<String, String> args) {
34: restrictProps(SORT_MISSING_FIRST | SORT_MISSING_LAST);
35: }
36:
37: /////////////////////////////////////////////////////////////
38: // TODO: ACK.. there is currently no SortField.DOUBLE!
39: public SortField getSortField(SchemaField field, boolean reverse) {
40: return new SortField(field.name, SortField.FLOAT, reverse);
41: }
42:
43: public ValueSource getValueSource(SchemaField field) {
44: // fieldCache doesn't support double
45: return new FloatFieldSource(field.name);
46: }
47:
48: public void write(XMLWriter xmlWriter, String name, Fieldable f)
49: throws IOException {
50: xmlWriter.writeDouble(name, f.stringValue());
51: }
52:
53: public void write(TextResponseWriter writer, String name,
54: Fieldable f) throws IOException {
55: writer.writeDouble(name, f.stringValue());
56: }
57: }
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