public class BinaryMessageEncoder<D> extends Object implements MessageEncoder<D>
MessageEncoder that adds a header and 8-byte schema fingerprint to
each datum encoded as binary.
This class is thread-safe.
| Constructor and Description |
|---|
BinaryMessageEncoder(GenericData model,
Schema schema)
Creates a new
BinaryMessageEncoder that uses the given
data model to deconstruct datum instances described by
the schema. |
BinaryMessageEncoder(GenericData model,
Schema schema,
boolean shouldCopy)
Creates a new
BinaryMessageEncoder that uses the given
data model to deconstruct datum instances described by
the schema. |
| Modifier and Type | Method and Description |
|---|---|
ByteBuffer |
encode(D datum)
Serialize a single datum to a ByteBuffer.
|
void |
encode(D datum,
OutputStream stream)
Serialize a single datum to an OutputStream.
|
public BinaryMessageEncoder(GenericData model, Schema schema)
BinaryMessageEncoder that uses the given
data model to deconstruct datum instances described by
the schema.
Buffers returned by #encode(D) are copied and will not be modified by
future calls to encode.
model - the data model for datum instancesschema - the Schema for datum instancespublic BinaryMessageEncoder(GenericData model, Schema schema, boolean shouldCopy)
BinaryMessageEncoder that uses the given
data model to deconstruct datum instances described by
the schema.
If shouldCopy is true, then buffers returned by #encode(D)
are copied and will not be modified by future calls to encode.
If shouldCopy is false, then buffers returned by encode wrap
a thread-local buffer that can be reused by future calls to encode,
but may not be. Callers should only set shouldCopy to false if the
buffer will be copied before the current thread's next call to
encode.
model - the data model for datum instancesschema - the Schema for datum instancesshouldCopy - whether to copy buffers before returning encoded resultspublic ByteBuffer encode(D datum) throws IOException
MessageEncoderencode in interface MessageEncoder<D>datum - a datumIOExceptionpublic void encode(D datum, OutputStream stream) throws IOException
MessageEncoderencode in interface MessageEncoder<D>datum - a datumstream - an OutputStream to serialize the datum toIOExceptionCopyright © 2009–2020 The Apache Software Foundation. All rights reserved.