Package io.debezium.relational.mapping

Class PropagateSourceMetadataToSchemaParameter

java.lang.Object

io.debezium.relational.mapping.PropagateSourceMetadataToSchemaParameter

All Implemented Interfaces:

ColumnMapper

public class PropagateSourceMetadataToSchemaParameter
extends Object
implements ColumnMapper

A column mapper that adds the COLUMN_NAME_PARAMETER_KEY, TYPE_NAME_PARAMETER_KEY, TYPE_LENGTH_PARAMETER_KEY, TYPE_SCALE_PARAMETER_KEY and COLUMN_COMMENT_PARAMETER_KEY schema parameter keys.

Author:

Orr Ganani, Gunnar Morling

Field Summary

Fields

Modifier and Type	Field	Description
private static final String	COLUMN_COMMENT_PARAMETER_KEY
private static final String	COLUMN_NAME_PARAMETER_KEY
private static final String	TYPE_LENGTH_PARAMETER_KEY
private static final String	TYPE_NAME_PARAMETER_KEY
private static final String	TYPE_SCALE_PARAMETER_KEY

Constructor Summary

Constructors

Constructor	Description
PropagateSourceMetadataToSchemaParameter()

Method Summary

Modifier and Type	Method	Description
void	alterFieldSchema(Column column, org.apache.kafka.connect.data.SchemaBuilder schemaBuilder)	Optionally annotate the schema with properties to better capture the mapping behavior.
ValueConverter	create(Column column)	Create for the given column a function that maps values.

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.debezium.relational.mapping.ColumnMapper

initialize

Field Details

TYPE_NAME_PARAMETER_KEY

private static final String TYPE_NAME_PARAMETER_KEY

See Also:

• Constant Field Values

TYPE_LENGTH_PARAMETER_KEY

private static final String TYPE_LENGTH_PARAMETER_KEY

See Also:

• Constant Field Values

TYPE_SCALE_PARAMETER_KEY

private static final String TYPE_SCALE_PARAMETER_KEY

See Also:

• Constant Field Values

COLUMN_COMMENT_PARAMETER_KEY

private static final String COLUMN_COMMENT_PARAMETER_KEY

See Also:

• Constant Field Values

COLUMN_NAME_PARAMETER_KEY

private static final String COLUMN_NAME_PARAMETER_KEY

See Also:

• Constant Field Values

Constructor Details

PropagateSourceMetadataToSchemaParameter

public PropagateSourceMetadataToSchemaParameter()

Method Details

create

public ValueConverter create(Column column)

Description copied from interface: ColumnMapper

Create for the given column a function that maps values.

Specified by:

create in interface ColumnMapper

Parameters:

column - the column description; never null

Returns:

the function that converts the value; may be null

alterFieldSchema

public void alterFieldSchema(Column column,
 org.apache.kafka.connect.data.SchemaBuilder schemaBuilder)

Description copied from interface: ColumnMapper

Optionally annotate the schema with properties to better capture the mapping behavior.

Specified by:

alterFieldSchema in interface ColumnMapper

Parameters:

column - the column definition; never null

schemaBuilder - the builder for the Field's schema; never null