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Xodus is pure Java transactional schema-less embedded database

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/**
 * Copyright 2010 - 2018 JetBrains s.r.o.
 *
 * 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 jetbrains.exodus.query;


class OptimizationRule {
    private final NodeBase source;
    private final NodeBase dest;

    OptimizationRule(NodeBase s, NodeBase d) {
        source = s;
        dest = d;
    }

    NodeBase getSource() {
        return source;
    }

    NodeBase getDest() {
        return dest;
    }

}