Examples of org.apache.hadoop.hbase.codec.Encoder

org.apache.hadoop.hbase.codec.Encoder
Accepts a stream of KeyValues. This can be used to anywhere KeyValues need to be written out, but currently it is only used for serializing WALEdits. This could be backed by a List, but more efficient implementations will append results to a byte[] to eliminate overhead, and possibly encode the underlying data further.
To read the data back, use a corresponding {@link Decoder} @see Decoder

      }
    }
  }


  public void write(DataOutput out) throws IOException {
    Encoder kvEncoder = codec.getEncoder((DataOutputStream) out);
    out.writeInt(VERSION_2);


    //write out the keyvalues
    out.writeInt(kvs.size());
    for(KeyValue kv: kvs){
      kvEncoder.write(kv);
    }
    kvEncoder.flush();


    out.writeInt(scopes.size());
    for (byte[] key : scopes.keySet()) {
      Bytes.writeByteArray(out, key);
      out.writeInt(scopes.get(key));

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    if (this.compression == null) {
      return new IndexKeyValueEncoder(os);
    }


    // compression is on, return our one that will handle putting in the correct markers
    Encoder encoder = super.getEncoder(os);
    return new CompressedIndexKeyValueEncoder(os, encoder);
  }

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      }
    }
  }


  public void write(DataOutput out) throws IOException {
    Encoder kvEncoder = codec.getEncoder((DataOutputStream) out);
    out.writeInt(VERSION_2);


    //write out the keyvalues
    out.writeInt(kvs.size());
    for(KeyValue kv: kvs){
      kvEncoder.write(kv);
    }
    kvEncoder.flush();


    if (scopes == null) {
      out.writeInt(0);
    } else {
      out.writeInt(scopes.size());

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    if (this.compression == null) {
      return new IndexKeyValueEncoder(os);
    }


    // compression is on, return our one that will handle putting in the correct markers
    Encoder encoder = super.getEncoder(os);
    return new CompressedIndexKeyValueEncoder(os, encoder);
  }

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      }
    }
  }


  public void write(DataOutput out) throws IOException {
    Encoder kvEncoder = codec.getEncoder((DataOutputStream) out);
    out.writeInt(VERSION_2);


    //write out the keyvalues
    out.writeInt(kvs.size());
    for(KeyValue kv: kvs){
      kvEncoder.write(kv);
    }
    kvEncoder.flush();


    out.writeInt(scopes.size());
    for (byte[] key : scopes.keySet()) {
      Bytes.writeByteArray(out, key);
      out.writeInt(scopes.get(key));

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    if (this.compression == null) {
      return new IndexKeyValueEncoder(os);
    }


    // compression is on, return our one that will handle putting in the correct markers
    Encoder encoder = super.getEncoder(os);
    return new CompressedIndexKeyValueEncoder(os, encoder);
  }

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Related Classes of org.apache.hadoop.hbase.codec.Encoder

org.apache.hadoop.hbase.regionserver.wal.IndexedWALEditCodec

org.apache.hadoop.hbase.regionserver.wal.WALEdit

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