/*
 * 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.paimon.lookup;

/** Strategy for lookup. */
public class LookupStrategy {

    public final boolean needLookup;

    public final boolean isFirstRow;

    public final boolean produceChangelog;

    public final boolean deletionVector;

    private LookupStrategy(
            boolean isFirstRow,
            boolean produceChangelog,
            boolean deletionVector,
            boolean forceLookup) {
        this.isFirstRow = isFirstRow;
        this.produceChangelog = produceChangelog;
        this.deletionVector = deletionVector;
        this.needLookup = produceChangelog || deletionVector || isFirstRow || forceLookup;
    }

    public static LookupStrategy from(
            boolean isFirstRow,
            boolean produceChangelog,
            boolean deletionVector,
            boolean forceLookup) {
        return new LookupStrategy(isFirstRow, produceChangelog, deletionVector, forceLookup);
    }
}
