io.debezium.relational

Class RelationalDatabaseSchema

java.lang.Object

io.debezium.relational.RelationalDatabaseSchema

All Implemented Interfaces:

DatabaseSchema<TableId>

Direct Known Subclasses:

HistorizedRelationalDatabaseSchema

public abstract class RelationalDatabaseSchema
extends Object
implements DatabaseSchema<TableId>

A DatabaseSchema of a relational database such as Postgres. Provides information about the physical structure of the database (the "database schema") as well as the structure of corresponding CDC messages (the "event schema").

Author:

Gunnar Morling

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	RelationalDatabaseSchema.SchemasByTableId A map of schemas by table id.

Field Summary

Fields

Modifier and Type	Field and Description
private Predicate<ColumnId>	columnFilter
private ColumnMappers	columnMappers
private TableSchemaBuilder	schemaBuilder
private String	schemaPrefix
private RelationalDatabaseSchema.SchemasByTableId	schemasByTableId
private Tables.TableFilter	tableFilter
private Tables	tables
private TopicSelector<TableId>	topicSelector

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	RelationalDatabaseSchema(CommonConnectorConfig config, TopicSelector<TableId> topicSelector, Tables.TableFilter tableFilter, Predicate<ColumnId> columnFilter, TableSchemaBuilder schemaBuilder, boolean tableIdCaseInsensitive)

Method Summary

Modifier and Type	Method and Description
protected void	buildAndRegisterSchema(Table table) Builds up the CDC event schema for the given table and stores it in this schema.
protected void	clearSchemas()
void	close()
private String	getEnvelopeSchemaName(Table table)
private static String	getSchemaPrefix(String serverName)
protected Tables.TableFilter	getTableFilter()
protected void	removeSchema(TableId id)
TableSchema	schemaFor(TableId id) Get the Schema information for the table with the given identifier, if that table exists and is included by the filter configuration.
Table	tableFor(TableId id) Get the Table meta-data for the table with the given identifier, if that table exists and is included by the filter configuration
Set<TableId>	tableIds() Returns the set of table ids included in the current filter configuration.
protected Tables	tables()

Methods inherited from class java.lang.Object

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

Field Detail

topicSelector

private final TopicSelector<TableId> topicSelector

schemaBuilder

private final TableSchemaBuilder schemaBuilder

tableFilter

private final Tables.TableFilter tableFilter

columnFilter

private final Predicate<ColumnId> columnFilter

columnMappers

private final ColumnMappers columnMappers

schemaPrefix

private final String schemaPrefix

schemasByTableId

private final RelationalDatabaseSchema.SchemasByTableId schemasByTableId

tables

private final Tables tables

Constructor Detail

RelationalDatabaseSchema

protected RelationalDatabaseSchema(CommonConnectorConfig config,
                                   TopicSelector<TableId> topicSelector,
                                   Tables.TableFilter tableFilter,
                                   Predicate<ColumnId> columnFilter,
                                   TableSchemaBuilder schemaBuilder,
                                   boolean tableIdCaseInsensitive)

Method Detail

getSchemaPrefix

private static String getSchemaPrefix(String serverName)

close

public void close()

Specified by:

close in interface DatabaseSchema<TableId>

tableIds

public Set<TableId> tableIds()

Returns the set of table ids included in the current filter configuration.

schemaFor

public TableSchema schemaFor(TableId id)

Get the Schema information for the table with the given identifier, if that table exists and is included by the filter configuration.

Note that the Schema will not contain any columns that have been filtered out.

Specified by:

schemaFor in interface DatabaseSchema<TableId>

Parameters:

id - the table identifier; may be null

Returns:

the schema information, or null if there is no table with the given identifier, if the identifier is null, or if the table has been excluded by the filters

tableFor

public Table tableFor(TableId id)

Get the Table meta-data for the table with the given identifier, if that table exists and is included by the filter configuration

Parameters:

id - the table identifier; may be null

Returns:

the current table definition, or null if there is no table with the given identifier, if the identifier is null, or if the table has been excluded by the filters

tables

protected Tables tables()

clearSchemas

protected void clearSchemas()

buildAndRegisterSchema

protected void buildAndRegisterSchema(Table table)

Builds up the CDC event schema for the given table and stores it in this schema.

removeSchema

protected void removeSchema(TableId id)

getEnvelopeSchemaName

private String getEnvelopeSchemaName(Table table)

getTableFilter

protected Tables.TableFilter getTableFilter()