Package io.debezium.relational.ddl

Class DdlChanges

java.lang.Object

io.debezium.relational.ddl.DdlChanges

All Implemented Interfaces:

DdlParserListener

@NotThreadSafe
public class DdlChanges
extends Object
implements DdlParserListener

A DdlParserListener that accumulates changes, allowing them to be consumed in the same order by database.

Author:

Randall Hauch

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	DdlChanges.DatabaseEventConsumer

Nested classes/interfaces inherited from interface io.debezium.relational.ddl.DdlParserListener

DdlParserListener.DatabaseAlteredEvent, DdlParserListener.DatabaseCreatedEvent, DdlParserListener.DatabaseDroppedEvent, DdlParserListener.DatabaseEvent, DdlParserListener.DatabaseSwitchedEvent, DdlParserListener.Event, DdlParserListener.EventType, DdlParserListener.SetVariableEvent, DdlParserListener.TableAlteredEvent, DdlParserListener.TableCreatedEvent, DdlParserListener.TableDroppedEvent, DdlParserListener.TableEvent, DdlParserListener.TableIndexCreatedEvent, DdlParserListener.TableIndexDroppedEvent, DdlParserListener.TableIndexEvent, DdlParserListener.TableTruncatedEvent

Field Summary

Fields

Modifier and Type	Field	Description
private final Set<String>	databaseNames
protected final List<DdlParserListener.Event>	events

Constructor Summary

Constructors

Constructor	Description
DdlChanges()

Method Summary

Modifier and Type	Method	Description
boolean	anyMatch(RelationalTableFilters filters)
boolean	anyMatch(Predicate<String> databaseFilter, Predicate<TableId> tableFilter)	Deprecated.
protected String	getDatabase(DdlParserListener.Event event)
void	getEventsByDatabase(DdlChanges.DatabaseEventConsumer consumer)	Consume the events in the same order they were recorded, but grouped by database name.
void	handle(DdlParserListener.Event event)	Handle a DDL event.
boolean	isEmpty()
DdlChanges	reset()	Clear all accumulated changes.
String	toString()

Methods inherited from class java.lang.Object

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

Field Details

events

protected final List<DdlParserListener.Event> events

databaseNames

private final Set<String> databaseNames

Constructor Details

DdlChanges

public DdlChanges()

Method Details

reset

public DdlChanges reset()

Clear all accumulated changes.

Returns:

this object for method chaining; never null

handle

public void handle(DdlParserListener.Event event)

Description copied from interface: DdlParserListener

Handle a DDL event.

Specified by:

handle in interface DdlParserListener

Parameters:

event - the DDL event; never null

getEventsByDatabase

public void getEventsByDatabase(DdlChanges.DatabaseEventConsumer consumer)

Consume the events in the same order they were recorded, but grouped by database name. Multiple sequential statements that were applied to the same database are grouped together.

Parameters:

consumer - the consumer

getDatabase

protected String getDatabase(DdlParserListener.Event event)

isEmpty

public boolean isEmpty()

toString

public String toString()

Overrides:

toString in class Object

anyMatch

@Deprecated
public boolean anyMatch(Predicate<String> databaseFilter,
 Predicate<TableId> tableFilter)

Deprecated.

Returns:

true if any event stored is one of

• database-wide events and affects included/excluded database
• table related events and the table is included
• events that set a variable and either affects included database or is a system-wide variable

anyMatch

public boolean anyMatch(RelationalTableFilters filters)

Returns:

true if any event stored is one of

• database-wide events and affects included/excluded database
• table related events and the table is included
• events that set a variable and either affects included database or is a system-wide variable