Package com.facebook.presto.split

Source Code of com.facebook.presto.split.RecordSetDataStreamProvider

/*
* 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.facebook.presto.split;

import com.facebook.presto.operator.Operator;
import com.facebook.presto.operator.OperatorContext;
import com.facebook.presto.operator.RecordProjectOperator;
import com.facebook.presto.spi.ConnectorColumnHandle;
import com.facebook.presto.spi.ConnectorRecordSetProvider;
import com.facebook.presto.spi.ConnectorSplit;

import java.util.List;

import static com.google.common.base.Preconditions.checkNotNull;

public class RecordSetDataStreamProvider
        implements ConnectorDataStreamProvider
{
    private ConnectorRecordSetProvider recordSetProvider;

    public RecordSetDataStreamProvider(ConnectorRecordSetProvider recordSetProvider)
    {
        this.recordSetProvider = checkNotNull(recordSetProvider, "recordSetProvider is null");
    }

    @Override
    public Operator createNewDataStream(OperatorContext operatorContext, ConnectorSplit split, List<ConnectorColumnHandle> columns)
    {
        return new RecordProjectOperator(operatorContext, recordSetProvider.getRecordSet(split, columns));
    }
}
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