Examples with POJO org.apache.flink.test.operators.util.CollectionDataSets.POJO used on opensource projects

Example 1 with POJO

use of org.apache.flink.test.operators.util.CollectionDataSets.POJO in project flink by apache.

the class CoGroupITCase method testCoGroupOnTwoCustomTypeInputsWithExpressionKeyAndFieldSelector.

@Test
public void testCoGroupOnTwoCustomTypeInputsWithExpressionKeyAndFieldSelector() throws Exception {
    /*
         * CoGroup on two custom type inputs using expression keys
         */
    final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
    DataSet<POJO> ds = CollectionDataSets.getSmallPojoDataSet(env);
    DataSet<Tuple7<Integer, String, Integer, Integer, Long, String, Long>> ds2 = CollectionDataSets.getSmallTuplebasedDataSet(env);
    DataSet<CustomType> coGroupDs = ds.coGroup(ds2).where("nestedPojo.longNumber").equalTo(6).with(new CoGroup1());
    List<CustomType> result = coGroupDs.collect();
    String expected = "-1,20000,Flink\n" + "-1,10000,Flink\n" + "-1,30000,Flink\n";
    compareResultAsText(result, expected);
}

Example 2 with POJO

use of org.apache.flink.test.operators.util.CollectionDataSets.POJO in project flink by apache.

the class CoGroupITCase method testCoGroupFieldSelectorAndComplicatedKeySelector.

@Test
public void testCoGroupFieldSelectorAndComplicatedKeySelector() throws Exception {
    /*
         * CoGroup field-selector (expression keys) + key selector function
         * The key selector is unnecessary complicated (Tuple1) ;)
         */
    final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
    DataSet<POJO> ds = CollectionDataSets.getSmallPojoDataSet(env);
    DataSet<Tuple7<Integer, String, Integer, Integer, Long, String, Long>> ds2 = CollectionDataSets.getSmallTuplebasedDataSet(env);
    DataSet<CustomType> coGroupDs = ds.coGroup(ds2).where(new KeySelector6()).equalTo(6).with(new CoGroup3());
    List<CustomType> result = coGroupDs.collect();
    String expected = "-1,20000,Flink\n" + "-1,10000,Flink\n" + "-1,30000,Flink\n";
    compareResultAsText(result, expected);
}

Example 3 with POJO

use of org.apache.flink.test.operators.util.CollectionDataSets.POJO in project flink by apache.

the class CoGroupITCase method testCoGroupFieldSelectorAndKeySelector.

@Test
public void testCoGroupFieldSelectorAndKeySelector() throws Exception {
    /*
         * CoGroup field-selector (expression keys) + key selector function
         * The key selector is simple here
         */
    final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
    DataSet<POJO> ds = CollectionDataSets.getSmallPojoDataSet(env);
    DataSet<Tuple7<Integer, String, Integer, Integer, Long, String, Long>> ds2 = CollectionDataSets.getSmallTuplebasedDataSet(env);
    DataSet<CustomType> coGroupDs = ds.coGroup(ds2).where(new KeySelector1()).equalTo(6).with(new CoGroup2());
    List<CustomType> result = coGroupDs.collect();
    String expected = "-1,20000,Flink\n" + "-1,10000,Flink\n" + "-1,30000,Flink\n";
    compareResultAsText(result, expected);
}

Example 4 with POJO

use of org.apache.flink.test.operators.util.CollectionDataSets.POJO in project flink by apache.

the class JoinITCase method testSelectingMultipleFieldsUsingExpressionLanguage.

@Test
public void testSelectingMultipleFieldsUsingExpressionLanguage() throws Exception {
    /*
         * selecting multiple fields using expression language
         */
    final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
    DataSet<POJO> ds1 = CollectionDataSets.getSmallPojoDataSet(env);
    DataSet<Tuple7<Integer, String, Integer, Integer, Long, String, Long>> ds2 = CollectionDataSets.getSmallTuplebasedDataSet(env);
    DataSet<Tuple2<POJO, Tuple7<Integer, String, Integer, Integer, Long, String, Long>>> joinDs = ds1.join(ds2).where("nestedPojo.longNumber", "number", "str").equalTo("f6", "f0", "f1");
    env.setParallelism(1);
    List<Tuple2<POJO, Tuple7<Integer, String, Integer, Integer, Long, String, Long>>> result = joinDs.collect();
    String expected = "1 First (10,100,1000,One) 10000,(1,First,10,100,1000,One,10000)\n" + "2 Second (20,200,2000,Two) 20000,(2,Second,20,200,2000,Two,20000)\n" + "3 Third (30,300,3000,Three) 30000,(3,Third,30,300,3000,Three,30000)\n";
    compareResultAsTuples(result, expected);
}

Example 5 with POJO

use of org.apache.flink.test.operators.util.CollectionDataSets.POJO in project flink by apache.

the class OuterJoinITCase method testFullPojoWithFullTuple.

@Test
public void testFullPojoWithFullTuple() throws Exception {
    /*
         * full pojo with full tuple
         */
    final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
    DataSet<POJO> ds1 = CollectionDataSets.getSmallPojoDataSet(env);
    DataSet<Tuple7<Long, Integer, Integer, Long, String, Integer, String>> ds2 = CollectionDataSets.getSmallTuplebasedDataSetMatchingPojo(env);
    DataSet<Tuple2<POJO, Tuple7<Long, Integer, Integer, Long, String, Integer, String>>> joinDs = ds1.fullOuterJoin(ds2).where("*").equalTo("*").with(new ProjectBothFunction<POJO, Tuple7<Long, Integer, Integer, Long, String, Integer, String>>());
    env.setParallelism(1);
    List<Tuple2<POJO, Tuple7<Long, Integer, Integer, Long, String, Integer, String>>> result = joinDs.collect();
    String expected = "1 First (10,100,1000,One) 10000,(10000,10,100,1000,One,1,First)\n" + "2 Second (20,200,2000,Two) 20000,(20000,20,200,2000,Two,2,Second)\n" + "3 Third (30,300,3000,Three) 30000,(30000,30,300,3000,Three,3,Third)\n";
    compareResultAsTuples(result, expected);
}