/*
* Copyright (c) 2008-2017, Hazelcast, Inc. All Rights Reserved.
*
* Licensed 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 com.hazelcast.query.impl.predicates;
import com.hazelcast.query.Predicate;
import com.hazelcast.query.impl.Indexes;
/**
* Visitor can inspect internal state of a node,
* but it's not allowed to mutate its internal state.
*
* Visitor can return a new instance of predicate
* if modification is needed
*
*
*/
public interface Visitor {
Predicate visit(AndPredicate predicate, Indexes indexes);
Predicate visit(OrPredicate predicate, Indexes indexes);
Predicate visit(NotPredicate predicate, Indexes indexes);
}