phoenix-core/src/main/java/org/apache/phoenix/iterate/ParallelIteratorFactory.java

/*
 * 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.phoenix.iterate;

import java.sql.SQLException;

import org.apache.hadoop.hbase.client.Scan;
import org.apache.phoenix.compile.QueryPlan;
import org.apache.phoenix.compile.StatementContext;

public interface ParallelIteratorFactory {
    public static ParallelIteratorFactory NOOP_FACTORY = new ParallelIteratorFactory() {
        @Override
        public PeekingResultIterator newIterator(StatementContext context, ResultIterator scanner, Scan scan, String physicalTableName, QueryPlan plan)
                throws SQLException {
            return LookAheadResultIterator.wrap(scanner);
        }
    };
    PeekingResultIterator newIterator(StatementContext context, ResultIterator scanner, Scan scan, String physicalTableName, QueryPlan plan) throws SQLException;
}