package org.apache.lucene.queryparser.flexible.aqp.nodes;
/**
* 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.
*/
import java.util.List;
import org.apache.lucene.queryparser.flexible.core.nodes.ModifierQueryNode.Modifier;
import org.apache.lucene.queryparser.flexible.core.nodes.QueryNode;
/**
* A {@link AqpAndQueryNode} represents an AND boolean operation performed on a
* list of nodes.
*
* @see AqpBooleanQueryNode
*/
public class AqpAndQueryNode extends AqpBooleanQueryNode {
private static final long serialVersionUID = -4148186404006404927L;
/**
* @param clauses
* - the query nodes to be and'ed
*/
public AqpAndQueryNode(List<QueryNode> clauses) {
super(clauses);
operator = "AND";
if ((clauses == null) || (clauses.size() == 0)) {
throw new IllegalArgumentException(
"AND query must have at least one clause");
}
applyModifier(clauses, Modifier.MOD_REQ);
// unfortunately we have to do it like this (when subclassing from
// BooleanQueryNode)
set(clauses);
}
}