| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.solr.schema; |
| |
| import org.apache.lucene.index.LeafReaderContext; |
| import org.apache.lucene.queries.function.FunctionValues; |
| import org.apache.lucene.queries.function.docvalues.DocTermsIndexDocValues; |
| import org.apache.lucene.queries.function.valuesource.FieldCacheSource; |
| |
| import java.io.IOException; |
| import java.util.Map; |
| |
| public class StrFieldSource extends FieldCacheSource { |
| |
| public StrFieldSource(String field) { |
| super(field); |
| } |
| |
| @Override |
| public String description() { |
| return "str(" + field + ')'; |
| } |
| |
| @Override |
| public FunctionValues getValues(@SuppressWarnings({"rawtypes"})Map context, LeafReaderContext readerContext) throws IOException { |
| return new DocTermsIndexDocValues(this, readerContext, field) { |
| |
| @Override |
| protected String toTerm(String readableValue) { |
| return readableValue; |
| } |
| |
| @Override |
| public int ordVal(int doc) throws IOException { |
| return getOrdForDoc(doc); |
| } |
| |
| @Override |
| public int numOrd() { |
| return termsIndex.getValueCount(); |
| } |
| |
| @Override |
| public Object objectVal(int doc) throws IOException { |
| return strVal(doc); |
| } |
| |
| @Override |
| public String toString(int doc) throws IOException { |
| return description() + '=' + strVal(doc); |
| } |
| }; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| return o instanceof StrFieldSource |
| && super.equals(o); |
| } |
| |
| private static int hcode = StrFieldSource.class.hashCode(); |
| @Override |
| public int hashCode() { |
| return hcode + super.hashCode(); |
| }; |
| } |