/*
* 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.flink.test.recordJobs.relational.query9Util;
import org.apache.flink.api.java.record.functions.MapFunction;
import org.apache.flink.test.recordJobs.util.Tuple;
import org.apache.flink.types.NullValue;
import org.apache.flink.types.Record;
import org.apache.flink.util.Collector;
@SuppressWarnings("serial")
public class PartFilter extends MapFunction {
private final Tuple inputTuple = new Tuple();
private static String COLOR = "green";
/**
* Filter and project "part".
* The parts are filtered by "name LIKE %green%".
*
* Output Schema:
* Key: partkey
* Value: (empty)
*
*/
@Override
public void map(Record record, Collector<Record> out) throws Exception
{
Tuple inputTuple = record.getField(1, this.inputTuple);
if (inputTuple.getStringValueAt(1).indexOf(COLOR) != -1) {
record.setField(1, NullValue.getInstance());
out.collect(record);
}
}
}