org.apache.flink.streaming.connectors.pulsar.internal

Class PulsarDeserializationSchemaWrapper<T>

java.lang.Object

org.apache.flink.streaming.connectors.pulsar.internal.PulsarDeserializationSchemaWrapper<T>

Type Parameters:

T - The type created by the deserialization schema.

All Implemented Interfaces:

Serializable, org.apache.flink.api.java.typeutils.ResultTypeQueryable<T>, PulsarDeserializationSchema<T>

@Internal
public class PulsarDeserializationSchemaWrapper<T>
extends Object
implements PulsarDeserializationSchema<T>

A simple wrapper for using the DeserializationSchema with the PulsarDeserializationSchema interface.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
PulsarDeserializationSchemaWrapper(org.apache.flink.api.common.serialization.DeserializationSchema<T> deserializationSchema)

Method Summary

Modifier and Type	Method and Description
T	deserialize(org.apache.pulsar.client.api.Message message) Deserializes the Pulsar message.
org.apache.flink.api.common.typeinfo.TypeInformation<T>	getProducedType()
boolean	isEndOfStream(T nextElement) Method to decide whether the element signals the end of the stream.
void	open(org.apache.flink.api.common.serialization.DeserializationSchema.InitializationContext context)

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.streaming.connectors.pulsar.internal.PulsarDeserializationSchema

deserialize

Constructor Detail

PulsarDeserializationSchemaWrapper

public PulsarDeserializationSchemaWrapper(org.apache.flink.api.common.serialization.DeserializationSchema<T> deserializationSchema)

Method Detail

open

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

Specified by:

open in interface PulsarDeserializationSchema<T>

Throws:

Exception

isEndOfStream

public boolean isEndOfStream(T nextElement)

Description copied from interface: PulsarDeserializationSchema

Method to decide whether the element signals the end of the stream. If true is returned the element won't be emitted.

Specified by:

isEndOfStream in interface PulsarDeserializationSchema<T>

Parameters:

nextElement - The element to test for the end-of-stream signal.

Returns:

True, if the element signals end of stream, false otherwise.

deserialize

public T deserialize(org.apache.pulsar.client.api.Message message)
              throws IOException

Description copied from interface: PulsarDeserializationSchema

Deserializes the Pulsar message.

Specified by:

deserialize in interface PulsarDeserializationSchema<T>

Parameters:

message - Pulsar message to be deserialized.

Returns:

The deserialized message as an object (null if the message cannot be deserialized).

Throws:

IOException

getProducedType

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

Specified by:

getProducedType in interface org.apache.flink.api.java.typeutils.ResultTypeQueryable<T>