JsonRowDecoder (presto-record-decoder 334 API)

java.lang.Object
- io.prestosql.decoder.json.JsonRowDecoder

All Implemented Interfaces:: RowDecoder

public class JsonRowDecoder
extends java.lang.Object
implements RowDecoder

JSON specific row decoder.

Field Summary

Fields
Modifier and Type Field Description

static java.lang.String NAME

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.util.Optional<java.util.Map<DecoderColumnHandle,FieldValueProvider>>`	`decodeRow(byte[] data, java.util.Map<java.lang.String,java.lang.String> dataMap)`	Decodes a given set of bytes into field values.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - NAME
```
public static final java.lang.String NAME
```
    See Also:
    
    Constant Field Values
- Method Detail
  - decodeRow
```
public java.util.Optional<java.util.Map<DecoderColumnHandle,FieldValueProvider>> decodeRow(byte[] data,
                                                                                                 java.util.Map<java.lang.String,java.lang.String> dataMap)
```
    Description copied from interface: RowDecoder
    
    Decodes a given set of bytes into field values.
    
    Specified by:
    
    decodeRow in interface RowDecoder
    
    Parameters:
    
    data - The row data to decode.
    
    dataMap - The row data as fields map
    
    Returns:
    
    Returns mapping from column handle to decoded value. Unmapped columns will be reported as null. Optional.empty() signals decoding error.