Package io.debezium.connector.oracle.converters

Class NumberToZeroScaleConverter

java.lang.Object

io.debezium.connector.oracle.converters.NumberToZeroScaleConverter

All Implemented Interfaces:

io.debezium.spi.converter.CustomConverter<org.apache.kafka.connect.data.SchemaBuilder,io.debezium.spi.converter.RelationalColumn>

public class NumberToZeroScaleConverter
extends Object
implements io.debezium.spi.converter.CustomConverter<org.apache.kafka.connect.data.SchemaBuilder,io.debezium.spi.converter.RelationalColumn>

Oracle allows for the NUMBER data type to have negative scale. This can cause issue when converting into Avro format, as Avro specification forbids negative scales. This converter converts sufficiently high number, those which are converted into BigDecimal type, into BigDecimal with a zero scale. The drawback of using this converter is losing the information about the number scale, but shouldn't be a big issue in typical case, as negative scale causes rounding of the number when stored in the database, i.e. the value of the number is correct, we just lose the information that the number could be rounded. For completeness the converter supports also other RelationalDatabaseConnectorConfig.DecimalHandlingMode modes.

Author:

vjuranek

See Also:

• Oracle data types
• Avro Decimal specification

Nested Class Summary

Nested classes/interfaces inherited from interface io.debezium.spi.converter.CustomConverter

io.debezium.spi.converter.CustomConverter.Converter, io.debezium.spi.converter.CustomConverter.ConverterRegistration<S extends Object>

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DECIMAL_MODE_PROPERTY
private JdbcValueConverters.DecimalMode	decimalMode
private static final org.slf4j.Logger	LOGGER

Constructor Summary

Constructors

Constructor	Description
NumberToZeroScaleConverter()

Method Summary

Modifier and Type	Method	Description
void	configure(Properties props)
void	converterFor(io.debezium.spi.converter.RelationalColumn field, io.debezium.spi.converter.CustomConverter.ConverterRegistration<org.apache.kafka.connect.data.SchemaBuilder> registration)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

LOGGER

private static final org.slf4j.Logger LOGGER

DECIMAL_MODE_PROPERTY

public static final String DECIMAL_MODE_PROPERTY

See Also:

• Constant Field Values

decimalMode

private JdbcValueConverters.DecimalMode decimalMode

Constructor Details

NumberToZeroScaleConverter

public NumberToZeroScaleConverter()

Method Details

configure

public void configure(Properties props)

Specified by:

configure in interface io.debezium.spi.converter.CustomConverter<org.apache.kafka.connect.data.SchemaBuilder,io.debezium.spi.converter.RelationalColumn>

converterFor

public void converterFor(io.debezium.spi.converter.RelationalColumn field,
 io.debezium.spi.converter.CustomConverter.ConverterRegistration<org.apache.kafka.connect.data.SchemaBuilder> registration)

Specified by:

converterFor in interface io.debezium.spi.converter.CustomConverter<org.apache.kafka.connect.data.SchemaBuilder,io.debezium.spi.converter.RelationalColumn>