org.apache.flink.cdc.runtime.operators.schema.coordinator

Class SchemaDerivation

java.lang.Object

org.apache.flink.cdc.runtime.operators.schema.coordinator.SchemaDerivation

public class SchemaDerivation
extends Object

Derive schema changes based on the routing rules.

Constructor Summary

Constructors

Constructor and Description
SchemaDerivation(SchemaManager schemaManager, List<org.apache.flink.api.java.tuple.Tuple2<org.apache.flink.cdc.common.schema.Selectors,org.apache.flink.cdc.common.event.TableId>> routes, Map<org.apache.flink.cdc.common.event.TableId,Set<org.apache.flink.cdc.common.event.TableId>> derivationMapping)

Method Summary

Modifier and Type	Method and Description
List<org.apache.flink.cdc.common.event.SchemaChangeEvent>	applySchemaChange(org.apache.flink.cdc.common.event.SchemaChangeEvent schemaChangeEvent)
static Map<org.apache.flink.cdc.common.event.TableId,Set<org.apache.flink.cdc.common.event.TableId>>	deserializerDerivationMapping(DataInputStream in)
Map<org.apache.flink.cdc.common.event.TableId,Set<org.apache.flink.cdc.common.event.TableId>>	getDerivationMapping()
static void	serializeDerivationMapping(SchemaDerivation schemaDerivation, DataOutputStream out)

Methods inherited from class java.lang.Object

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

Constructor Detail

SchemaDerivation

public SchemaDerivation(SchemaManager schemaManager,
                        List<org.apache.flink.api.java.tuple.Tuple2<org.apache.flink.cdc.common.schema.Selectors,org.apache.flink.cdc.common.event.TableId>> routes,
                        Map<org.apache.flink.cdc.common.event.TableId,Set<org.apache.flink.cdc.common.event.TableId>> derivationMapping)

Method Detail

applySchemaChange

public List<org.apache.flink.cdc.common.event.SchemaChangeEvent> applySchemaChange(org.apache.flink.cdc.common.event.SchemaChangeEvent schemaChangeEvent)

getDerivationMapping

public Map<org.apache.flink.cdc.common.event.TableId,Set<org.apache.flink.cdc.common.event.TableId>> getDerivationMapping()

serializeDerivationMapping

public static void serializeDerivationMapping(SchemaDerivation schemaDerivation,
                                              DataOutputStream out)
                                       throws IOException

Throws:

IOException

deserializerDerivationMapping

public static Map<org.apache.flink.cdc.common.event.TableId,Set<org.apache.flink.cdc.common.event.TableId>> deserializerDerivationMapping(DataInputStream in)
                                                                                                                                   throws IOException

Throws:

IOException