Package org.apache.beam.sdk.io.aws2.dynamodb

Class AttributeValueCoder

java.lang.Object

org.apache.beam.sdk.coders.Coder<AttributeValue>

org.apache.beam.sdk.coders.StructuredCoder<AttributeValue>

org.apache.beam.sdk.coders.AtomicCoder<AttributeValue>

org.apache.beam.sdk.io.aws2.dynamodb.AttributeValueCoder

All Implemented Interfaces:

Serializable

public class AttributeValueCoder
extends AtomicCoder<AttributeValue>

A Coder that serializes and deserializes the AttributeValue objects.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.beam.sdk.coders.Coder

Coder.Context, Coder.NonDeterministicException

Method Summary

Modifier and Type	Method	Description
AttributeValue	decode(InputStream inStream)	Decodes a value of type T from the given input stream in the given context.
void	encode(AttributeValue value, OutputStream outStream)	Encodes the given value of type T onto the given output stream.
static AttributeValueCoder	of()

Methods inherited from class org.apache.beam.sdk.coders.AtomicCoder

equals, getCoderArguments, getComponents, hashCode, verifyDeterministic

Methods inherited from class org.apache.beam.sdk.coders.StructuredCoder

toString

Methods inherited from class org.apache.beam.sdk.coders.Coder

consistentWithEquals, decode, encode, getEncodedElementByteSize, getEncodedElementByteSizeUsingCoder, getEncodedTypeDescriptor, isRegisterByteSizeObserverCheap, registerByteSizeObserver, structuralValue, verifyDeterministic, verifyDeterministic

Methods inherited from class java.lang.Object

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

Method Details

of

public static AttributeValueCoder of()

encode

public void encode(AttributeValue value,
 OutputStream outStream)
            throws IOException

Description copied from class: Coder

Encodes the given value of type T onto the given output stream. Multiple elements can be encoded next to each other on the output stream, each coder should encode information to know how many bytes to read when decoding. A common approach is to prefix the encoding with the element's encoded length.

Specified by:

encode in class Coder<AttributeValue>

Throws:

IOException - if writing to the OutputStream fails for some reason

decode

public AttributeValue decode(InputStream inStream)
                      throws IOException

Description copied from class: Coder

Decodes a value of type T from the given input stream in the given context. Returns the decoded value. Multiple elements can be encoded next to each other on the input stream, each coder should encode information to know how many bytes to read when decoding. A common approach is to prefix the encoding with the element's encoded length.

Specified by:

decode in class Coder<AttributeValue>

Throws:

IOException - if reading from the InputStream fails for some reason