org.apache.flink.streaming.util.serialization

Class ThreadSafeDeserializationSchema<T>

java.lang.Object

org.apache.flink.streaming.util.serialization.ThreadSafeDeserializationSchema<T>

All Implemented Interfaces:

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

public class ThreadSafeDeserializationSchema<T>
extends Object
implements org.apache.flink.api.common.serialization.DeserializationSchema<T>

Because the Pulsar Source is designed to be multi-threaded, Flink's internal design of the Source is single-threaded, so, DeserializationSchema instances are oriented to single-threaded, and thread safety issues exist when they are accessed by multiple threads at the same time. Cause the message deserialization to fail.

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

Method Summary

Modifier and Type	Method and Description
T	deserialize(byte[] bytes)
void	deserialize(byte[] message, org.apache.flink.util.Collector<T> out)
org.apache.flink.api.common.typeinfo.TypeInformation	getProducedType()
boolean	isEndOfStream(T object)
static ThreadSafeDeserializationSchema	of(org.apache.flink.api.common.serialization.DeserializationSchema deserializationSchema)
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

Method Detail

of

public static ThreadSafeDeserializationSchema of(org.apache.flink.api.common.serialization.DeserializationSchema deserializationSchema)

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<T>

Throws:

Exception

deserialize

public T deserialize(byte[] bytes)
              throws IOException

Specified by:

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

Throws:

IOException

deserialize

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

Specified by:

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

Throws:

IOException

isEndOfStream

public boolean isEndOfStream(T object)

Specified by:

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

getProducedType

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

Specified by:

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