Package io.debezium.relational.mapping

Class ColumnMappers

java.lang.Object

io.debezium.relational.mapping.ColumnMappers

@Immutable
public class ColumnMappers
extends Object

A set of ColumnMapper objects for columns.

Author:

Randall Hauch

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ColumnMappers.Builder	A builder of Selectors.
protected static class	ColumnMappers.MapperRule

Field Summary

Fields

Modifier and Type	Field	Description
private List<ColumnMappers.MapperRule>	rules

Constructor Summary

Constructors

Modifier	Constructor	Description
private	ColumnMappers(List<ColumnMappers.MapperRule> rules)

Method Summary

Modifier and Type	Method	Description
static ColumnMappers.Builder	build()	Obtain a new builder for a table selection predicate.
static ColumnMappers	create(RelationalDatabaseConnectorConfig connectorConfig)	Builds a new ColumnMappers instance based on the given configuration.
protected static ColumnMapper	instantiateMapper(Class<ColumnMapper> clazz, Configuration config)
ColumnMapper	mapperFor(TableId tableId, Column column)	Get the value mapping function for the given column.
ValueConverter	mappingConverterFor(TableId tableId, Column column)	Get the value mapping function for the given column.
ValueConverter	mappingConverterFor(Table table, Column column)	Get the value mapping function for the given column.

Methods inherited from class java.lang.Object

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

Field Detail

rules

private final List<ColumnMappers.MapperRule> rules

Constructor Detail

ColumnMappers

private ColumnMappers(List<ColumnMappers.MapperRule> rules)

Method Detail

build

public static ColumnMappers.Builder build()

Obtain a new builder for a table selection predicate.

Returns:

the builder; never null

create

public static ColumnMappers create(RelationalDatabaseConnectorConfig connectorConfig)

Builds a new ColumnMappers instance based on the given configuration.

mappingConverterFor

public ValueConverter mappingConverterFor(Table table,
                                          Column column)

Get the value mapping function for the given column.

Parameters:

table - the table to which the column belongs; may not be null

column - the column; may not be null

Returns:

the mapping function, or null if there is no mapping function

mappingConverterFor

public ValueConverter mappingConverterFor(TableId tableId,
                                          Column column)

Get the value mapping function for the given column.

Parameters:

tableId - the identifier of the table to which the column belongs; may not be null

column - the column; may not be null

Returns:

the mapping function, or null if there is no mapping function

mapperFor

public ColumnMapper mapperFor(TableId tableId,
                              Column column)

Get the value mapping function for the given column.

Parameters:

tableId - the identifier of the table to which the column belongs; may not be null

column - the column; may not be null

Returns:

the mapping function, or null if there is no mapping function

instantiateMapper

protected static ColumnMapper instantiateMapper(Class<ColumnMapper> clazz,
                                                Configuration config)