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

Example 76 with ScalarReader

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

the class TestScalarAccessors method testNullableIntervalDay.

@Test
public void testNullableIntervalDay() {
    TupleMetadata schema = new SchemaBuilder().addNullable("col", MinorType.INTERVALDAY).buildSchema();
    Period p1 = Period.years(0);
    Period p2 = Period.days(3).plusHours(4).plusMinutes(5).plusSeconds(23);
    SingleRowSet rs = fixture.rowSetBuilder(schema).addRow(p1).addSingleCol(null).addRow(p2).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());
    assertEquals(p1, colReader.getPeriod().normalizedStandard());
    assertTrue(reader.next());
    assertTrue(colReader.isNull());
    assertNull(colReader.getObject());
    assertEquals("null", colReader.getAsString());
    assertTrue(reader.next());
    assertEquals(p2, colReader.getPeriod().normalizedStandard());
    assertFalse(reader.next());
    rs.clear();
}

Example 77 with ScalarReader

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

the class TestScalarAccessors method testFloatArray.

@Test
public void testFloatArray() {
    TupleMetadata schema = new SchemaBuilder().addArray("col", MinorType.FLOAT4).buildSchema();
    SingleRowSet rs = fixture.rowSetBuilder(schema).addSingleCol(new double[] {}).addSingleCol(new double[] { 0, 20.5, 30.0 }).build();
    assertEquals(2, rs.rowCount());
    RowSetReader reader = rs.reader();
    ArrayReader arrayReader = reader.array(0);
    ScalarReader colReader = arrayReader.scalar();
    assertEquals(ValueType.FLOAT, colReader.valueType());
    assertTrue(reader.next());
    assertEquals(0, arrayReader.size());
    assertTrue(reader.next());
    assertEquals(3, arrayReader.size());
    assertTrue(arrayReader.next());
    assertEquals(0, colReader.getDouble(), 0.00001);
    assertEquals(0, (float) colReader.getObject(), 0.00001);
    assertEquals("0.0", colReader.getAsString());
    assertTrue(arrayReader.next());
    assertEquals(20.5, colReader.getDouble(), 0.00001);
    assertEquals(20.5, (float) colReader.getObject(), 0.00001);
    assertEquals("20.5", colReader.getAsString());
    assertTrue(arrayReader.next());
    assertEquals(30.0, colReader.getDouble(), 0.00001);
    assertEquals(30.0, (float) colReader.getObject(), 0.00001);
    assertEquals("30.0", colReader.getAsString());
    assertFalse(arrayReader.next());
    assertEquals("[0.0, 20.5, 30.0]", arrayReader.getAsString());
    assertEquals(Arrays.asList(0.0F, 20.5F, 30F), arrayReader.getObject());
    assertFalse(reader.next());
    rs.clear();
}

Example 78 with ScalarReader

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

the class TestScalarAccessors method nullableDecimalTester.

private void nullableDecimalTester(MinorType type, int precision) {
    MajorType majorType = MajorType.newBuilder().setMinorType(type).setScale(3).setPrecision(precision).setMode(DataMode.OPTIONAL).build();
    TupleMetadata schema = new SchemaBuilder().add("col", majorType).buildSchema();
    BigDecimal v1 = BigDecimal.ZERO;
    BigDecimal v2 = BigDecimal.valueOf(123_456_789, 3);
    SingleRowSet rs = fixture.rowSetBuilder(schema).addRow(v1).addSingleCol(null).addRow(v2).build();
    assertEquals(3, rs.rowCount());
    RowSetReader reader = rs.reader();
    ScalarReader colReader = reader.scalar(0);
    assertEquals(ValueType.DECIMAL, colReader.valueType());
    assertTrue(reader.next());
    assertFalse(colReader.isNull());
    assertEquals(0, v1.compareTo(colReader.getDecimal()));
    assertTrue(reader.next());
    assertTrue(colReader.isNull());
    assertNull(colReader.getObject());
    assertEquals("null", colReader.getAsString());
    assertTrue(reader.next());
    assertEquals(0, v2.compareTo(colReader.getDecimal()));
    assertFalse(reader.next());
    rs.clear();
}

Example 79 with ScalarReader

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

the class TestScalarAccessors method testIntRW.

@Test
public void testIntRW() {
    TupleMetadata schema = new SchemaBuilder().add("col", MinorType.INT).buildSchema();
    SingleRowSet rs = fixture.rowSetBuilder(schema).addRow(0).addRow(Integer.MAX_VALUE).addRow(Integer.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, reader.scalar(0).getInt());
    assertTrue(reader.next());
    assertEquals(Integer.MAX_VALUE, colReader.getInt());
    assertEquals(Integer.MAX_VALUE, colReader.getObject());
    assertEquals(Integer.toString(Integer.MAX_VALUE), colReader.getAsString());
    assertTrue(reader.next());
    assertEquals(Integer.MIN_VALUE, colReader.getInt());
    assertFalse(reader.next());
    rs.clear();
}

Example 80 with ScalarReader

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

the class TestScalarAccessors method testIntervalYearArray.

@Test
public void testIntervalYearArray() {
    TupleMetadata schema = new SchemaBuilder().addArray("col", MinorType.INTERVALYEAR).buildSchema();
    Period p1 = Period.years(0);
    Period p2 = Period.years(2).plusMonths(3);
    Period p3 = Period.years(1234).plusMonths(11);
    SingleRowSet rs = fixture.rowSetBuilder(schema).addSingleCol(new Period[] {}).addSingleCol(new Period[] { p1, p2, p3 }).build();
    assertEquals(2, rs.rowCount());
    RowSetReader reader = rs.reader();
    ArrayReader arrayReader = reader.array(0);
    ScalarReader colReader = arrayReader.scalar();
    assertEquals(ValueType.PERIOD, colReader.valueType());
    assertTrue(reader.next());
    assertEquals(0, arrayReader.size());
    assertTrue(reader.next());
    assertEquals(3, arrayReader.size());
    assertTrue(arrayReader.next());
    assertEquals(p1, colReader.getPeriod());
    assertTrue(arrayReader.next());
    assertEquals(p2, colReader.getPeriod());
    assertEquals(p2, colReader.getObject());
    assertEquals(p2.toString(), colReader.getAsString());
    assertTrue(arrayReader.next());
    assertEquals(p3, colReader.getPeriod());
    assertFalse(arrayReader.next());
    assertFalse(reader.next());
    rs.clear();
}