/*
* 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.io.IOException;
import java.sql.SQLException;
import java.util.List;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.client.ResultScanner;
import org.apache.phoenix.schema.tuple.ResultTuple;
import org.apache.phoenix.schema.tuple.Tuple;
import org.apache.phoenix.util.ServerUtil;
public class ScanningResultIterator implements ResultIterator {
private final ResultScanner scanner;
public ScanningResultIterator(ResultScanner scanner) {
this.scanner = scanner;
}
@Override
public void close() throws SQLException {
scanner.close();
}
@Override
public Tuple next() throws SQLException {
try {
Result result = scanner.next();
// TODO: use ResultTuple.setResult(result)
// Need to create a new one if holding on to it (i.e. OrderedResultIterator)
return result == null ? null : new ResultTuple(result);
} catch (IOException e) {
throw ServerUtil.parseServerException(e);
}
}
@Override
public void explain(List<String> planSteps) {
}
}