2
* Licensed to the Apache Software Foundation (ASF) under one or more
3
* contributor license agreements. See the NOTICE file distributed with
4
* this work for additional information regarding copyright ownership.
5
* The ASF licenses this file to You under the Apache License, Version 2.0
6
* (the "License"); you may not use this file except in compliance with
7
* the License. You may obtain a copy of the License at
9
* http://www.apache.org/licenses/LICENSE-2.0
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.
18
package org.apache.solr.search.function;
20
import org.apache.lucene.search.FieldCache;
23
* A base class for ValueSource implementations that retrieve values for
24
* a single field from the {@link org.apache.lucene.search.FieldCache}.
26
* @version $Id: FieldCacheSource.java 1065312 2011-01-30 16:08:25Z rmuir $
28
public abstract class FieldCacheSource extends ValueSource {
29
protected String field;
30
protected FieldCache cache = FieldCache.DEFAULT;
32
public FieldCacheSource(String field) {
36
public FieldCache getFieldCache() {
41
public String description() {
46
public boolean equals(Object o) {
47
if (!(o instanceof FieldCacheSource)) return false;
48
FieldCacheSource other = (FieldCacheSource)o;
49
return this.field.equals(other.field)
50
&& this.cache == other.cache;
54
public int hashCode() {
55
return cache.hashCode() + field.hashCode();