Examples with ScalarReader org.apache.drill.exec.vector.accessor.ScalarReader used on opensource projects

Example 56 with ScalarReader

use of org.apache.drill.exec.vector.accessor.ScalarReader in project drill by axbaretto.

the class TestScalarAccessors method nullableLongTester.

private void nullableLongTester(MinorType type) {
    BatchSchema batchSchema = new SchemaBuilder().addNullable("col", type).build();
    SingleRowSet rs = fixture.rowSetBuilder(batchSchema).addRow(10L).addSingleCol(null).addRow(30L).build();
    assertEquals(3, rs.rowCount());
    RowSetReader reader = rs.reader();
    ScalarReader colReader = reader.scalar(0);
    assertTrue(reader.next());
    assertFalse(colReader.isNull());
    assertEquals(10, colReader.getLong());
    assertTrue(reader.next());
    assertTrue(colReader.isNull());
    assertNull(colReader.getObject());
    assertEquals("null", colReader.getAsString());
    // Data value is undefined, may be garbage
    assertTrue(reader.next());
    assertEquals(30, colReader.getLong());
    assertFalse(reader.next());
    rs.clear();
}

Example 57 with ScalarReader

use of org.apache.drill.exec.vector.accessor.ScalarReader in project drill by axbaretto.

the class TestScalarAccessors method testIntervalDayRW.

@Test
public void testIntervalDayRW() {
    BatchSchema batchSchema = new SchemaBuilder().add("col", MinorType.INTERVALDAY).build();
    Period p1 = Period.days(0);
    Period p2 = Period.days(3).plusHours(4).plusMinutes(5).plusSeconds(23);
    Period p3 = Period.days(999).plusHours(23).plusMinutes(59).plusSeconds(59);
    SingleRowSet rs = fixture.rowSetBuilder(batchSchema).addRow(p1).addRow(p2).addRow(p3).build();
    assertEquals(3, rs.rowCount());
    RowSetReader reader = rs.reader();
    ScalarReader colReader = reader.scalar(0);
    assertEquals(ValueType.PERIOD, colReader.valueType());
    assertTrue(reader.next());
    assertFalse(colReader.isNull());
    // The normalizedStandard() call is a hack. See DRILL-5689.
    assertEquals(p1, colReader.getPeriod().normalizedStandard());
    assertTrue(reader.next());
    assertEquals(p2, colReader.getPeriod().normalizedStandard());
    assertEquals(p2, ((Period) colReader.getObject()).normalizedStandard());
    assertEquals(p2.toString(), colReader.getAsString());
    assertTrue(reader.next());
    assertEquals(p3.normalizedStandard(), colReader.getPeriod().normalizedStandard());
    assertFalse(reader.next());
    rs.clear();
}

Example 58 with ScalarReader

use of org.apache.drill.exec.vector.accessor.ScalarReader in project drill by axbaretto.

the class TestScalarAccessors method testTinyIntRW.

@Test
public void testTinyIntRW() {
    BatchSchema batchSchema = new SchemaBuilder().add("col", MinorType.TINYINT).build();
    SingleRowSet rs = fixture.rowSetBuilder(batchSchema).addRow(0).addRow(Byte.MAX_VALUE).addRow(Byte.MIN_VALUE).build();
    assertEquals(3, rs.rowCount());
    RowSetReader reader = rs.reader();
    ScalarReader colReader = reader.scalar(0);
    assertEquals(ValueType.INTEGER, colReader.valueType());
    assertTrue(reader.next());
    assertFalse(colReader.isNull());
    assertEquals(0, colReader.getInt());
    assertTrue(reader.next());
    assertEquals(Byte.MAX_VALUE, colReader.getInt());
    assertEquals((int) Byte.MAX_VALUE, colReader.getObject());
    assertEquals(Byte.toString(Byte.MAX_VALUE), colReader.getAsString());
    assertTrue(reader.next());
    assertEquals(Byte.MIN_VALUE, colReader.getInt());
    assertFalse(reader.next());
    rs.clear();
}

Example 59 with ScalarReader

use of org.apache.drill.exec.vector.accessor.ScalarReader in project drill by axbaretto.

the class TestScalarAccessors method testNullableVarBinary.

@Test
public void testNullableVarBinary() {
    BatchSchema batchSchema = new SchemaBuilder().addNullable("col", MinorType.VARBINARY).build();
    byte[] v1 = new byte[] {};
    byte[] v2 = new byte[] { (byte) 0x00, (byte) 0x7f, (byte) 0x80, (byte) 0xFF };
    SingleRowSet rs = fixture.rowSetBuilder(batchSchema).addRow(v1).addSingleCol(null).addRow(v2).build();
    assertEquals(3, rs.rowCount());
    RowSetReader reader = rs.reader();
    ScalarReader colReader = reader.scalar(0);
    assertEquals(ValueType.BYTES, colReader.valueType());
    assertTrue(reader.next());
    assertFalse(colReader.isNull());
    assertTrue(Arrays.equals(v1, colReader.getBytes()));
    assertTrue(reader.next());
    assertTrue(colReader.isNull());
    assertNull(colReader.getObject());
    assertEquals("null", colReader.getAsString());
    assertTrue(reader.next());
    assertTrue(Arrays.equals(v2, colReader.getBytes()));
    assertFalse(reader.next());
    rs.clear();
}

Example 60 with ScalarReader

use of org.apache.drill.exec.vector.accessor.ScalarReader in project drill by axbaretto.

the class TestScalarAccessors method testSmallIntRW.

@Test
public void testSmallIntRW() {
    BatchSchema batchSchema = new SchemaBuilder().add("col", MinorType.SMALLINT).build();
    SingleRowSet rs = fixture.rowSetBuilder(batchSchema).addRow(0).addRow(Short.MAX_VALUE).addRow(Short.MIN_VALUE).build();
    assertEquals(3, rs.rowCount());
    RowSetReader reader = rs.reader();
    ScalarReader colReader = reader.scalar(0);
    assertEquals(ValueType.INTEGER, colReader.valueType());
    assertTrue(reader.next());
    assertFalse(colReader.isNull());
    assertEquals(0, colReader.getInt());
    assertTrue(reader.next());
    assertEquals(Short.MAX_VALUE, colReader.getInt());
    assertEquals((int) Short.MAX_VALUE, colReader.getObject());
    assertEquals(Short.toString(Short.MAX_VALUE), colReader.getAsString());
    assertTrue(reader.next());
    assertEquals(Short.MIN_VALUE, colReader.getInt());
    assertFalse(reader.next());
    rs.clear();
}