1 package org.apache.lucene.queryParser.spans;
4 * Licensed to the Apache Software Foundation (ASF) under one or more
5 * contributor license agreements. See the NOTICE file distributed with
6 * this work for additional information regarding copyright ownership.
7 * The ASF licenses this file to You under the Apache License, Version 2.0
8 * (the "License"); you may not use this file except in compliance with
9 * the License. You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
20 import org.apache.lucene.queryParser.core.nodes.FieldableNode;
21 import org.apache.lucene.util.Attribute;
24 * This attribute is used by the {@link UniqueFieldQueryNodeProcessor}
25 * processor. It holds a value that defines which is the unique field name that
26 * should be set in every {@link FieldableNode}.<br/>
29 * @see UniqueFieldQueryNodeProcessor
31 public interface UniqueFieldAttribute extends Attribute {
32 public void setUniqueField(CharSequence uniqueField);
34 public CharSequence getUniqueField();