Package org.apache.flink.formats.json

Class JsonDeserializationSchema<T>

java.lang.Object

org.apache.flink.api.common.serialization.AbstractDeserializationSchema<T>

org.apache.flink.formats.json.JsonDeserializationSchema<T>

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.serialization.DeserializationSchema<T>, org.apache.flink.api.java.typeutils.ResultTypeQueryable<T>

@PublicEvolving
public class JsonDeserializationSchema<T>
extends org.apache.flink.api.common.serialization.AbstractDeserializationSchema<T>

DeserializationSchema that deserializes a JSON String.

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

Field Summary

Fields

Modifier and Type	Field	Description
protected org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.ObjectMapper	mapper

Constructor Summary

Constructors

Constructor	Description
JsonDeserializationSchema(Class<T> clazz)
JsonDeserializationSchema(Class<T> clazz, org.apache.flink.util.function.SerializableSupplier<org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.ObjectMapper> mapperFactory)
JsonDeserializationSchema(org.apache.flink.api.common.typeinfo.TypeInformation<T> typeInformation)
JsonDeserializationSchema(org.apache.flink.api.common.typeinfo.TypeInformation<T> typeInformation, org.apache.flink.util.function.SerializableSupplier<org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.ObjectMapper> mapperFactory)

Method Summary

Modifier and Type	Method	Description
T	deserialize(byte[] message)
void	open(org.apache.flink.api.common.serialization.DeserializationSchema.InitializationContext context)

Methods inherited from class org.apache.flink.api.common.serialization.AbstractDeserializationSchema

getProducedType, isEndOfStream

Methods inherited from class java.lang.Object

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

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

deserialize

Field Detail

mapper

protected transient org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.ObjectMapper mapper

Constructor Detail

JsonDeserializationSchema

public JsonDeserializationSchema(Class<T> clazz)

JsonDeserializationSchema

public JsonDeserializationSchema(org.apache.flink.api.common.typeinfo.TypeInformation<T> typeInformation)

JsonDeserializationSchema

public JsonDeserializationSchema(Class<T> clazz,
                                 org.apache.flink.util.function.SerializableSupplier<org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.ObjectMapper> mapperFactory)

JsonDeserializationSchema

public JsonDeserializationSchema(org.apache.flink.api.common.typeinfo.TypeInformation<T> typeInformation,
                                 org.apache.flink.util.function.SerializableSupplier<org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.ObjectMapper> mapperFactory)

Method Detail

open

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

deserialize

public T deserialize(byte[] message)
              throws IOException

Specified by:

deserialize in interface org.apache.flink.api.common.serialization.DeserializationSchema<T>

Specified by:

deserialize in class org.apache.flink.api.common.serialization.AbstractDeserializationSchema<T>

Throws:

IOException