org.apache.flink.streaming.util.serialization

Class JavaDefaultStringSchema

java.lang.Object

org.apache.flink.streaming.util.serialization.JavaDefaultStringSchema

All Implemented Interfaces:

Serializable, org.apache.flink.api.java.typeutils.ResultTypeQueryable<String>, DeserializationSchema<String>, SerializationSchema<String,byte[]>

public class JavaDefaultStringSchema
extends Object
implements DeserializationSchema<String>, SerializationSchema<String,byte[]>

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
JavaDefaultStringSchema()

Method Summary

Methods

Modifier and Type	Method and Description
String	deserialize(byte[] message) Deserializes the byte message.
TypeInformation<String>	getProducedType()
boolean	isEndOfStream(String nextElement) Method to decide whether the element signals the end of the stream.
byte[]	serialize(String element) Serializes the incoming element to a specified type.

Methods inherited from class java.lang.Object

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

Constructor Detail

JavaDefaultStringSchema

public JavaDefaultStringSchema()

Method Detail

isEndOfStream

public boolean isEndOfStream(String nextElement)

Description copied from interface: DeserializationSchema

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 DeserializationSchema<String>

Parameters:

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

Returns:

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

serialize

public byte[] serialize(String element)

Description copied from interface: SerializationSchema

Serializes the incoming element to a specified type.

Specified by:

serialize in interface SerializationSchema<String,byte[]>

Parameters:

element - The incoming element to be serialized

Returns:

The serialized element.

deserialize

public String deserialize(byte[] message)

Description copied from interface: DeserializationSchema

Deserializes the byte message.

Specified by:

deserialize in interface DeserializationSchema<String>

Parameters:

message - The message, as a byte array.

Returns:

The deserialized message as an object.

getProducedType

public TypeInformation<String> getProducedType()

Specified by:

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