Examples with ListDataTraits org.knime.core.table.schema.traits.ListDataTraits used on opensource projects

Example 1 with ListDataTraits

use of org.knime.core.table.schema.traits.ListDataTraits in project knime-core by knime.

the class ValueFactoryUtilsTest method testGetTraitsOnCollectionValueFactory.

@Test
void testGetTraitsOnCollectionValueFactory() {
    var valueFactory = new ListValueFactory();
    valueFactory.initialize(new IntValueFactory(), IntCell.TYPE);
    // 
    assertThat(ValueFactoryUtils.getTraits(valueFactory)).isInstanceOf(// 
    ListDataTraits.class).matches(// 
    this::hasLogicalTypeTrait).matches(this::isListTypeTrait).extracting(// 
    ListDataTraits.class::cast).extracting(// 
    ListDataTraits::getInner).matches(// 
    this::hasLogicalTypeTrait).extracting(// 
    ValueFactoryUtilsTest::extractValueFactoryClassName).isEqualTo(IntValueFactory.class.getName());
    // collection of data cell value factories
    var listOfDataCells = createListValueFactory(createDataCellValueFactory(), XMLCell.TYPE);
    // 
    assertThat(ValueFactoryUtils.getTraits(listOfDataCells)).isInstanceOf(// 
    ListDataTraits.class).matches(// 
    this::hasLogicalTypeTrait).matches(// 
    this::isListTypeTrait).extracting(// 
    ListDataTraits.class::cast).extracting(// 
    ListDataTraits::getInner).extracting(// 
    ValueFactoryUtilsTest::extractLogicalTypeJson).matches(j -> j.get("value_factory_class").asText().equals(DictEncodedDataCellValueFactory.class.getName())).extracting(// 
    j -> j.get("data_type")).extracting(// 
    j -> j.get("cell_class").asText()).isEqualTo(XMLCell.class.getName());
    // nested collection
    var nestedCollection = createListValueFactory(createListValueFactory(IntValueFactory.INSTANCE, IntCell.TYPE), DataType.getType(ListCell.class, IntCell.TYPE));
    // 
    assertThat(ValueFactoryUtils.getTraits(nestedCollection)).isInstanceOf(// 
    ListDataTraits.class).matches(// 
    this::hasLogicalTypeTrait).matches(// 
    this::isListTypeTrait).extracting(// 
    ListDataTraits.class::cast).extracting(// 
    ListDataTraits::getInner).matches(// 
    this::hasLogicalTypeTrait).matches(// 
    this::isListTypeTrait).extracting(// 
    ListDataTraits.class::cast).extracting(// 
    ListDataTraits::getInner).matches(// 
    this::hasLogicalTypeTrait).extracting(// 
    ValueFactoryUtilsTest::extractValueFactoryClassName).isEqualTo(IntValueFactory.class.getName());
    // SparseListValueFactory (uses StructDataTraits)
    var sparseList = new SparseListValueFactory();
    sparseList.initialize(IntValueFactory.INSTANCE, IntCell.TYPE);
    // 
    assertThat(ValueFactoryUtils.getTraits(sparseList)).isInstanceOf(// 
    StructDataTraits.class).extracting(// 
    StructDataTraits.class::cast).matches(// 
    this::hasLogicalTypeTrait).matches(// 
    t -> extractValueFactoryClassName(t).equals(SparseListValueFactory.class.getName())).extracting(// 
    t -> t.getDataTraits(0)).matches(// 
    this::hasLogicalTypeTrait).extracting(// 
    ValueFactoryUtilsTest::extractValueFactoryClassName).isEqualTo(IntValueFactory.class.getName());
}