Package org.apache.flink.api.java.operators.Keys

Examples of org.apache.flink.api.java.operators.Keys.ExpressionKeys


    Assert.assertTrue("The hashing for tuples and pojos must be the same, so that they are mixable", pHash == tHash);
   
    Tuple3<Integer, String, Double> multiTupleTest = new Tuple3<Integer, String, Double>(1, "haha", 4d); // its important here to use the same values.
    TupleTypeInfo<Tuple3<Integer, String, Double>> multiTupleType = (TupleTypeInfo<Tuple3<Integer, String, Double>>)TypeExtractor.getForObject(multiTupleTest);
   
    ExpressionKeys fieldKey = new ExpressionKeys(new int[]{1,0,2}, multiTupleType);
    ExpressionKeys expressKey = new ExpressionKeys(new String[] {"nestedClass.dumm2", "nestedClass.dumm1", "nestedClass.dumm3"}, pType);
    try {
      Assert.assertTrue("Expecting the keys to be compatible", fieldKey.areCompatible(expressKey));
    } catch (IncompatibleKeysException e) {
      e.printStackTrace();
      Assert.fail("Keys must be compatible: "+e.getMessage());
    }
    TypeComparator<TestUserClass> multiPojoComp = pType.createComparator( expressKey.computeLogicalKeyPositions(), new boolean[]{true, true, true}, 0);
    int multiPojoHash = multiPojoComp.hash(pojoTestRecord);
   
   
    // pojo order is: dumm2 (str), dumm1 (int), dumm3 (double).
    TypeComparator<Tuple3<Integer, String, Double>> multiTupleComp = multiTupleType.createComparator(fieldKey.computeLogicalKeyPositions(), new boolean[] {true, true,true}, 0);
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