org.apache.flink.formats.avro.registry.confluent.debezium

Class DebeziumAvroDeserializationSchema

java.lang.Object

org.apache.flink.formats.avro.registry.confluent.debezium.DebeziumAvroDeserializationSchema

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.serialization.DeserializationSchema<org.apache.flink.table.data.RowData>, org.apache.flink.api.java.typeutils.ResultTypeQueryable<org.apache.flink.table.data.RowData>

@Internal
public final class DebeziumAvroDeserializationSchema
extends Object
implements org.apache.flink.api.common.serialization.DeserializationSchema<org.apache.flink.table.data.RowData>

Deserialization schema from Debezium Avro to Flink Table/SQL internal data structure RowData. The deserialization schema knows Debezium's schema definition and can extract the database data and convert into RowData with RowKind. Deserializes a byte[] message as a JSON object and reads the specified fields. Failures during deserialization are forwarded as wrapped IOExceptions.

See Also:

Debezium, Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flink.api.common.serialization.DeserializationSchema

org.apache.flink.api.common.serialization.DeserializationSchema.InitializationContext

Constructor Summary

Constructors

Constructor and Description
DebeziumAvroDeserializationSchema(org.apache.flink.table.types.logical.RowType rowType, org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.table.data.RowData> producedTypeInfo, String schemaRegistryUrl, String schemaString, Map<String,?> registryConfigs)

Method Summary

Modifier and Type	Method and Description
static org.apache.flink.table.types.logical.RowType	createDebeziumAvroRowType(org.apache.flink.table.types.DataType databaseSchema)
org.apache.flink.table.data.RowData	deserialize(byte[] message)
void	deserialize(byte[] message, org.apache.flink.util.Collector<org.apache.flink.table.data.RowData> out)
boolean	equals(Object o)
org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.table.data.RowData>	getProducedType()
int	hashCode()
boolean	isEndOfStream(org.apache.flink.table.data.RowData nextElement)
void	open(org.apache.flink.api.common.serialization.DeserializationSchema.InitializationContext context)

Methods inherited from class java.lang.Object

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

Constructor Detail

DebeziumAvroDeserializationSchema

public DebeziumAvroDeserializationSchema(org.apache.flink.table.types.logical.RowType rowType,
                                         org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.table.data.RowData> producedTypeInfo,
                                         String schemaRegistryUrl,
                                         @Nullable
                                         String schemaString,
                                         @Nullable
                                         Map<String,?> registryConfigs)

Method Detail

open

public void open(org.apache.flink.api.common.serialization.DeserializationSchema.InitializationContext context)
          throws Exception

Specified by:

open in interface org.apache.flink.api.common.serialization.DeserializationSchema<org.apache.flink.table.data.RowData>

Throws:

Exception

deserialize

public org.apache.flink.table.data.RowData deserialize(byte[] message)
                                                throws IOException

Specified by:

deserialize in interface org.apache.flink.api.common.serialization.DeserializationSchema<org.apache.flink.table.data.RowData>

Throws:

IOException

deserialize

public void deserialize(byte[] message,
                        org.apache.flink.util.Collector<org.apache.flink.table.data.RowData> out)
                 throws IOException

Specified by:

deserialize in interface org.apache.flink.api.common.serialization.DeserializationSchema<org.apache.flink.table.data.RowData>

Throws:

IOException

isEndOfStream

public boolean isEndOfStream(org.apache.flink.table.data.RowData nextElement)

Specified by:

isEndOfStream in interface org.apache.flink.api.common.serialization.DeserializationSchema<org.apache.flink.table.data.RowData>

getProducedType

public org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.table.data.RowData> getProducedType()

Specified by:

getProducedType in interface org.apache.flink.api.java.typeutils.ResultTypeQueryable<org.apache.flink.table.data.RowData>

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

createDebeziumAvroRowType

public static org.apache.flink.table.types.logical.RowType createDebeziumAvroRowType(org.apache.flink.table.types.DataType databaseSchema)