org.apache.flink.formats.json

Class JsonRowDataDeserializationSchema

java.lang.Object

org.apache.flink.formats.json.JsonRowDataDeserializationSchema

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 class JsonRowDataDeserializationSchema
extends Object
implements org.apache.flink.api.common.serialization.DeserializationSchema<org.apache.flink.table.data.RowData>

Deserialization schema from JSON to Flink Table/SQL internal data structure RowData.

Deserializes a byte[] message as a JSON object and reads the specified fields.

Failures during deserialization are forwarded as wrapped IOExceptions.

See Also:

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
JsonRowDataDeserializationSchema(org.apache.flink.table.types.logical.RowType rowType, org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.table.data.RowData> resultTypeInfo, boolean failOnMissingField, boolean ignoreParseErrors, org.apache.flink.formats.common.TimestampFormat timestampFormat)

Method Summary

Modifier and Type	Method and Description
org.apache.flink.table.data.RowData	convertToRowData(org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JsonNode message)
org.apache.flink.table.data.RowData	deserialize(byte[] message)
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JsonNode	deserializeToJsonNode(byte[] message)
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)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.api.common.serialization.DeserializationSchema

deserialize, open

Constructor Detail

JsonRowDataDeserializationSchema

public JsonRowDataDeserializationSchema(org.apache.flink.table.types.logical.RowType rowType,
                                        org.apache.flink.api.common.typeinfo.TypeInformation<org.apache.flink.table.data.RowData> resultTypeInfo,
                                        boolean failOnMissingField,
                                        boolean ignoreParseErrors,
                                        org.apache.flink.formats.common.TimestampFormat timestampFormat)

Method Detail

deserialize

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

Specified by:

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

Throws:

IOException

deserializeToJsonNode

public org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JsonNode deserializeToJsonNode(byte[] message)
                                                                                               throws IOException

Throws:

IOException

convertToRowData

public org.apache.flink.table.data.RowData convertToRowData(org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JsonNode message)

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