Examples with StringCell org.knime.core.data.def.StringCell used on opensource projects

Example 41 with StringCell

use of org.knime.core.data.def.StringCell in project knime-core by knime.

the class DataTableDomainCreatorTest method testPossibleValues.

/**
 * Checks whether possible values are computed correctly.
 */
@Test
public void testPossibleValues() {
    DataColumnSpecCreator colSpecCrea = new DataColumnSpecCreator("String col", StringCell.TYPE);
    DataTableSpec tableSpec = new DataTableSpec(colSpecCrea.createSpec());
    RowKey rowKey = new RowKey("Row0");
    DataTableDomainCreator domainCreator = new DataTableDomainCreator(tableSpec, false);
    domainCreator.setMaxPossibleValues(2);
    // initially no values
    Set<DataCell> expectedValues = new LinkedHashSet<>();
    DataColumnDomain colDomain = domainCreator.createSpec().getColumnSpec(0).getDomain();
    assertThat("Unexpected possible values", colDomain.getValues(), is(expectedValues));
    // add two values
    expectedValues.add(new StringCell("v1"));
    domainCreator.updateDomain(new DefaultRow(rowKey, "v1"));
    colDomain = domainCreator.createSpec().getColumnSpec(0).getDomain();
    assertThat("Unexpected possible values", colDomain.getValues(), is(expectedValues));
    expectedValues.add(new StringCell("v2"));
    domainCreator.updateDomain(new DefaultRow(rowKey, "v2"));
    colDomain = domainCreator.createSpec().getColumnSpec(0).getDomain();
    assertThat("Unexpected possible values", colDomain.getValues(), is(expectedValues));
    // add more than the maximum number removes all values
    domainCreator.updateDomain(new DefaultRow(rowKey, "v3"));
    colDomain = domainCreator.createSpec().getColumnSpec(0).getDomain();
    assertThat("Unexpected possible values", colDomain.getValues(), is(nullValue()));
}

Example 42 with StringCell

use of org.knime.core.data.def.StringCell in project knime-core by knime.

the class DataContainerTest method generateRows.

private static RowIterator generateRows(final int count) {
    return new RowIterator() {

        private int m_index = 0;

        @Override
        public DataRow next() {
            DefaultRow r = new DefaultRow(RowKey.createRowKey(m_index), new StringCell("String " + m_index), new IntCell(m_index), new DoubleCell(m_index));
            m_index++;
            return r;
        }

        @Override
        public boolean hasNext() {
            return m_index < count;
        }
    };
}

Example 43 with StringCell

use of org.knime.core.data.def.StringCell in project knime-core by knime.

the class DataContainerTest method testDuplicateKey.

/**
 * method being tested: addRowToTable().
 */
public final void testDuplicateKey() {
    String[] colNames = new String[] { "Column 1", "Column 2" };
    DataType[] colTypes = new DataType[] { StringCell.TYPE, IntCell.TYPE };
    DataTableSpec spec1 = new DataTableSpec(colNames, colTypes);
    DataContainer c = new DataContainer(spec1);
    RowKey r1Key = new RowKey("row 1");
    DataCell r1Cell1 = new StringCell("Row 1, Cell 1");
    DataCell r1Cell2 = new IntCell(12);
    DataRow r1 = new DefaultRow(r1Key, new DataCell[] { r1Cell1, r1Cell2 });
    RowKey r2Key = new RowKey("row 2");
    DataCell r2Cell1 = new StringCell("Row 2, Cell 1");
    DataCell r2Cell2 = new IntCell(22);
    DataRow r2 = new DefaultRow(r2Key, new DataCell[] { r2Cell1, r2Cell2 });
    c.addRowToTable(r1);
    c.addRowToTable(r2);
    // add row 1 twice
    try {
        c.addRowToTable(r1);
        c.close();
        // ... eh eh, you don't do this
        fail("Expected " + DuplicateKeyException.class + " not thrown");
    } catch (DuplicateKeyException e) {
        NodeLogger.getLogger(getClass()).debug("Got expected exception: " + e.getClass(), e);
    }
}

Example 44 with StringCell

use of org.knime.core.data.def.StringCell in project knime-core by knime.

the class DataContainerTest method testIncompatibleTypes.

/**
 * method being tested: addRowToTable().
 */
public final void testIncompatibleTypes() {
    String[] colNames = new String[] { "Column 1", "Column 2" };
    DataType[] colTypes = new DataType[] { StringCell.TYPE, IntCell.TYPE };
    DataTableSpec spec1 = new DataTableSpec(colNames, colTypes);
    DataContainer c = new DataContainer(spec1);
    RowKey r1Key = new RowKey("row 1");
    DataCell r1Cell1 = new StringCell("Row 1, Cell 1");
    DataCell r1Cell2 = new IntCell(12);
    DataRow r1 = new DefaultRow(r1Key, new DataCell[] { r1Cell1, r1Cell2 });
    RowKey r2Key = new RowKey("row 2");
    DataCell r2Cell1 = new StringCell("Row 2, Cell 1");
    DataCell r2Cell2 = new IntCell(22);
    DataRow r2 = new DefaultRow(r2Key, new DataCell[] { r2Cell1, r2Cell2 });
    RowKey r3Key = new RowKey("row 3");
    DataCell r3Cell1 = new StringCell("Row 3, Cell 1");
    DataCell r3Cell2 = new IntCell(32);
    DataRow r3 = new DefaultRow(r3Key, new DataCell[] { r3Cell1, r3Cell2 });
    c.addRowToTable(r1);
    c.addRowToTable(r2);
    c.addRowToTable(r3);
    // add incompatible types
    RowKey r4Key = new RowKey("row 4");
    DataCell r4Cell1 = new StringCell("Row 4, Cell 1");
    // not allowed
    DataCell r4Cell2 = new DoubleCell(42.0);
    DataRow r4 = new DefaultRow(r4Key, new DataCell[] { r4Cell1, r4Cell2 });
    try {
        c.addRowToTable(r4);
        c.close();
        fail("Expected " + DataContainerException.class + " not thrown");
    } catch (DataContainerException e) {
        if (!(e.getCause() instanceof IllegalArgumentException)) {
            throw e;
        } else {
            NodeLogger.getLogger(getClass()).debug("Got expected exception: " + e.getCause().getClass(), e.getCause());
        }
    } catch (IllegalArgumentException e) {
        NodeLogger.getLogger(getClass()).debug("Got expected exception: " + e.getClass(), e);
    }
}

Example 45 with StringCell

use of org.knime.core.data.def.StringCell in project knime-core by knime.

the class JavaToDataCellConversionTest method testToStringCell.

/**
 * Test String -> StringCell and Object -> StringCell conversions.
 *
 * @throws Exception When something went wrong
 */
@Test
public void testToStringCell() throws Exception {
    final StringCell cell = testSimpleConversion(String.class, StringCell.TYPE, StringCell.class, new String("KNIME"));
    assertEquals("KNIME", cell.getStringValue());
}