Package org.apache.flink.cdc.common.event.visitor

Class SchemaChangeEventVisitor

java.lang.Object

org.apache.flink.cdc.common.event.visitor.SchemaChangeEventVisitor

@Internal
public class SchemaChangeEventVisitor
extends Object

Visitor clas for all SchemaChangeEvents and returns a specific typed object.

Constructor Summary

Constructors

Constructor	Description
SchemaChangeEventVisitor()

Method Summary

Modifier and Type	Method	Description
static <T,E extends Throwable> T	visit(SchemaChangeEvent event, VisitorHandler<AddColumnEvent,T,E> addColumnVisitor, VisitorHandler<AlterColumnTypeEvent,T,E> alterColumnTypeEventVisitor, VisitorHandler<CreateTableEvent,T,E> createTableEventVisitor, VisitorHandler<DropColumnEvent,T,E> dropColumnEventVisitor, VisitorHandler<DropTableEvent,T,E> dropTableEventVisitor, VisitorHandler<RenameColumnEvent,T,E> renameColumnEventVisitor, VisitorHandler<TruncateTableEvent,T,E> truncateTableEventVisitor, VisitorHandler<AlterTableCommentEvent,T,E> alterTableCommentEventVisitor)
static <E extends Throwable> void	voidVisit(SchemaChangeEvent event, VoidVisitorHandler<AddColumnEvent,E> addColumnVisitor, VoidVisitorHandler<AlterColumnTypeEvent,E> alterColumnTypeEventVisitor, VoidVisitorHandler<CreateTableEvent,E> createTableEventVisitor, VoidVisitorHandler<DropColumnEvent,E> dropColumnEventVisitor, VoidVisitorHandler<DropTableEvent,E> dropTableEventVisitor, VoidVisitorHandler<RenameColumnEvent,E> renameColumnEventVisitor, VoidVisitorHandler<TruncateTableEvent,E> truncateTableEventVisitor, VoidVisitorHandler<AlterTableCommentEvent,E> alterTableCommentEventHandler)

Methods inherited from class java.lang.Object

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

Constructor Detail

SchemaChangeEventVisitor

public SchemaChangeEventVisitor()

Method Detail

visit

public static <T,E extends Throwable> T visit(SchemaChangeEvent event,
                                                    @Nonnull
                                                    VisitorHandler<AddColumnEvent,T,E> addColumnVisitor,
                                                    @Nonnull
                                                    VisitorHandler<AlterColumnTypeEvent,T,E> alterColumnTypeEventVisitor,
                                                    @Nonnull
                                                    VisitorHandler<CreateTableEvent,T,E> createTableEventVisitor,
                                                    @Nonnull
                                                    VisitorHandler<DropColumnEvent,T,E> dropColumnEventVisitor,
                                                    @Nonnull
                                                    VisitorHandler<DropTableEvent,T,E> dropTableEventVisitor,
                                                    @Nonnull
                                                    VisitorHandler<RenameColumnEvent,T,E> renameColumnEventVisitor,
                                                    @Nonnull
                                                    VisitorHandler<TruncateTableEvent,T,E> truncateTableEventVisitor,
                                                    @Nonnull
                                                    VisitorHandler<AlterTableCommentEvent,T,E> alterTableCommentEventVisitor)
                                             throws E extends Throwable

Throws:

E extends Throwable

voidVisit

public static <E extends Throwable> void voidVisit(SchemaChangeEvent event,
                                                   @Nonnull
                                                   VoidVisitorHandler<AddColumnEvent,E> addColumnVisitor,
                                                   @Nonnull
                                                   VoidVisitorHandler<AlterColumnTypeEvent,E> alterColumnTypeEventVisitor,
                                                   @Nonnull
                                                   VoidVisitorHandler<CreateTableEvent,E> createTableEventVisitor,
                                                   @Nonnull
                                                   VoidVisitorHandler<DropColumnEvent,E> dropColumnEventVisitor,
                                                   @Nonnull
                                                   VoidVisitorHandler<DropTableEvent,E> dropTableEventVisitor,
                                                   @Nonnull
                                                   VoidVisitorHandler<RenameColumnEvent,E> renameColumnEventVisitor,
                                                   @Nonnull
                                                   VoidVisitorHandler<TruncateTableEvent,E> truncateTableEventVisitor,
                                                   @Nonnull
                                                   VoidVisitorHandler<AlterTableCommentEvent,E> alterTableCommentEventHandler)
                                            throws E extends Throwable

Throws:

E extends Throwable