org.apache.avro.reflect

Class ReflectDatumWriter<T>

java.lang.Object

org.apache.avro.generic.GenericDatumWriter<T>

org.apache.avro.specific.SpecificDatumWriter<T>

org.apache.avro.reflect.ReflectDatumWriter<T>

All Implemented Interfaces:

DatumWriter<T>

public class ReflectDatumWriter<T>
extends SpecificDatumWriter<T>

DatumWriter for existing classes via Java reflection.

Constructor Summary

Constructors

Modifier	Constructor and Description
	ReflectDatumWriter()
	ReflectDatumWriter(Class<T> c)
	ReflectDatumWriter(Class<T> c, ReflectData data)
protected	ReflectDatumWriter(ReflectData reflectData)
	ReflectDatumWriter(Schema root)
	ReflectDatumWriter(Schema root, ReflectData reflectData)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	write(Schema schema, Object datum, Encoder out) Called to write data.
protected void	writeArray(Schema schema, Object datum, Encoder out) Called to write a array.
protected void	writeBytes(Object datum, Encoder out) Called to write a bytes.
protected void	writeField(Object record, Schema.Field f, Encoder out, Object state) Called to write a single field of a record.

Methods inherited from class org.apache.avro.specific.SpecificDatumWriter

getSpecificData, writeEnum, writeString

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

getArrayElements, getArraySize, getData, getMapEntries, getMapSize, npe, resolveUnion, setSchema, write, writeFixed, writeMap, writeRecord, writeString, writeWithoutConversion

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(Class<T> c)

ReflectDatumWriter

public ReflectDatumWriter(Class<T> c,
                  ReflectData data)

ReflectDatumWriter

public ReflectDatumWriter(Schema root)

ReflectDatumWriter

public ReflectDatumWriter(Schema root,
                  ReflectData reflectData)

ReflectDatumWriter

protected ReflectDatumWriter(ReflectData reflectData)

Method Detail

writeArray

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

Called to write a array. May be overridden for alternate array representations.

Overrides:

writeArray in class GenericDatumWriter<T>

Throws:

IOException

writeBytes

protected void writeBytes(Object datum,
              Encoder out)
                   throws IOException

Description copied from class: GenericDatumWriter

Called to write a bytes. May be overridden for alternate bytes representations.

Overrides:

writeBytes in class GenericDatumWriter<T>

Throws:

IOException

write

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

Description copied from class: GenericDatumWriter

Called to write data.

Overrides:

write in class GenericDatumWriter<T>

Throws:

IOException

writeField

protected void writeField(Object record,
              Schema.Field f,
              Encoder out,
              Object state)
                   throws IOException

Description copied from class: GenericDatumWriter

Called to write a single field of a record. May be overridden for more efficient or alternate implementations.

Overrides:

writeField in class GenericDatumWriter<T>

Throws:

IOException