Package com.linkedin.venice.schema.vson

Class VsonAvroDatumWriter<K>

java.lang.Object
org.apache.avro.generic.GenericDatumWriter<K>
com.linkedin.venice.schema.vson.VsonAvroDatumWriter<K>
All Implemented Interfaces:
org.apache.avro.io.DatumWriter<K>
@Deprecated public class VsonAvroDatumWriter<K> extends org.apache.avro.generic.GenericDatumWriter<K>
Deprecated.

  • Constructor Summary

    Constructors
    Constructor
    Description
    VsonAvroDatumWriter(org.apache.avro.Schema root)
    Deprecated.
     

  • Method Summary

    Modifier and Type
    Method
    Description
    protected void
    write(org.apache.avro.Schema schema, Object datum, org.apache.avro.io.Encoder out)
    Deprecated.
     
    protected void
    writeFixed(org.apache.avro.Schema schema, Object datum, org.apache.avro.io.Encoder out)
    Deprecated.
    In Vson-Avro conversion, Fixed type is specialized for representing 'single byte' or 'short'.
    protected void
    writeRecord(org.apache.avro.Schema schema, Object datum, org.apache.avro.io.Encoder out)
    Deprecated.
     
    protected void
    writeUnion(org.apache.avro.Schema schema, Object datum, org.apache.avro.io.Encoder out)
    Deprecated.
    This method is kinda hacking.

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

    addAvroTypeMsg, addClassCastMsg, convert, getArrayElements, getArraySize, getData, getMapEntries, getMapSize, npe, resolveUnion, setSchema, write, writeArray, writeBytes, writeEnum, writeField, writeMap, writeString, writeString, writeWithoutConversion

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • VsonAvroDatumWriter

      public VsonAvroDatumWriter(org.apache.avro.Schema root)
      Deprecated.

  • Method Details

    • write

      protected void write(org.apache.avro.Schema schema, Object datum, org.apache.avro.io.Encoder out) throws IOException
      Deprecated.
      Overrides:
      write in class org.apache.avro.generic.GenericDatumWriter<K>
      Throws:
      IOException

    • writeRecord

      protected void writeRecord(org.apache.avro.Schema schema, Object datum, org.apache.avro.io.Encoder out) throws IOException
      Deprecated.
      Overrides:
      writeRecord in class org.apache.avro.generic.GenericDatumWriter<K>
      Throws:
      IOException

    • writeFixed

      protected void writeFixed(org.apache.avro.Schema schema, Object datum, org.apache.avro.io.Encoder out) throws IOException
      Deprecated.
      In Vson-Avro conversion, Fixed type is specialized for representing 'single byte' or 'short'.
      Overrides:
      writeFixed in class org.apache.avro.generic.GenericDatumWriter<K>
      Throws:
      IOException

    • writeUnion

      protected void writeUnion(org.apache.avro.Schema schema, Object datum, org.apache.avro.io.Encoder out) throws IOException
      Deprecated.
      This method is kinda hacking. Since we know that 'Union' is only able to have two fields and the index is fixed, we explicitly set them. The reason we don't use GenericData.resolveUnion(org.apache.avro.Schema, java.lang.Object) is that Vson Record is presented as a map. This is inconsistent with GenericData.isRecord(Object) and I am hesitated to involve another override as long as it work fine here. P.S. this also means we need to override write(Schema, Object, Encoder) since 'UNION' is not processed in a method call in super class
      Throws:
      IOException