/*
* 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.expressions.Expression;
import org.apache.lucene.expressions.SimpleBindings;
import org.apache.lucene.expressions.js.JavascriptCompiler;
import org.apache.lucene.search.SortField;
/**
* Custom field wrapping an int, to test sorting via a custom comparator.
*/
public class WrappedIntField extends TrieIntField {
Expression expr;
public WrappedIntField() {
try {
expr = JavascriptCompiler.compile("payload % 3");
} catch (Exception e) {
throw new RuntimeException("impossible?", e);
}
}
@Override
public SortField getSortField(final SchemaField field, final boolean reverse) {
field.checkSortability();
SimpleBindings bindings = new SimpleBindings();
bindings.add(super.getSortField(field, reverse));
return expr.getSortField(bindings, reverse);
}
}