org.apache.avro.reflect
Class ReflectDatumWriter

java.lang.Object
  org.apache.avro.generic.GenericDatumWriter<Object>
      org.apache.avro.reflect.ReflectDatumWriter

All Implemented Interfaces:

DatumWriter<Object>

Direct Known Subclasses:

SpecificDatumWriter

public class ReflectDatumWriter
extends GenericDatumWriter<Object>

DatumWriter for existing classes via Java reflection.

Constructor Summary

ReflectDatumWriter()

ReflectDatumWriter(ReflectData reflectData)

ReflectDatumWriter(Schema root)

ReflectDatumWriter(Schema root, ReflectData reflectData)

Method Summary

protected Object	getField(Object record, String name, int position) Called by the default implementation of GenericDatumWriter.writeRecord(org.apache.avro.Schema, java.lang.Object, org.apache.avro.io.Encoder) to retrieve a record field value.
protected boolean	isEnum(Object datum)
protected void	writeEnum(Schema schema, Object datum, Encoder out) Called to write an enum value.

Methods inherited from class org.apache.avro.generic.GenericDatumWriter

getArrayElements, getArraySize, getMapEntries, getMapSize, setSchema, write, write, writeArray, writeBytes, writeFixed, writeMap, writeRecord, writeString

Methods inherited from class java.lang.Object

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

Constructor Detail

ReflectDatumWriter

public ReflectDatumWriter()

ReflectDatumWriter

public ReflectDatumWriter(Schema root)

ReflectDatumWriter

public ReflectDatumWriter(Schema root,
                          ReflectData reflectData)

ReflectDatumWriter

public ReflectDatumWriter(ReflectData reflectData)

Method Detail

getField

protected Object getField(Object record,
                          String name,
                          int position)

Description copied from class: GenericDatumWriter

Called by the default implementation of GenericDatumWriter.writeRecord(org.apache.avro.Schema, java.lang.Object, org.apache.avro.io.Encoder) to retrieve a record field value. The default implementation is for GenericRecord.

Overrides:

getField in class GenericDatumWriter<Object>

writeEnum

protected void writeEnum(Schema schema,
                         Object datum,
                         Encoder out)
                  throws IOException

Description copied from class: GenericDatumWriter

Called to write an enum value. May be overridden for alternate enum representations.

Overrides:

writeEnum in class GenericDatumWriter<Object>

Throws:

IOException

isEnum

protected boolean isEnum(Object datum)