org.apache.drill.exec.vector.complex.fn

Class JsonReaderUtils

java.lang.Object

org.apache.drill.exec.vector.complex.fn.JsonReaderUtils

public class JsonReaderUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
JsonReaderUtils()

Method Summary

Modifier and Type	Method and Description
static void	ensureAtLeastOneField(BaseWriter.ComplexWriter writer, Collection<SchemaPath> columns, boolean allTextMode, List<BaseWriter.ListWriter> emptyArrayWriters)
static void	writeColumnsUsingSchema(BaseWriter.ComplexWriter writer, Collection<SchemaPath> columns, TupleMetadata schema, boolean allTextMode) Creates writers which correspond to the specified schema for specified root writer.

Methods inherited from class java.lang.Object

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

Constructor Detail

JsonReaderUtils

public JsonReaderUtils()

Method Detail

ensureAtLeastOneField

public static void ensureAtLeastOneField(BaseWriter.ComplexWriter writer,
                                         Collection<SchemaPath> columns,
                                         boolean allTextMode,
                                         List<BaseWriter.ListWriter> emptyArrayWriters)

writeColumnsUsingSchema

public static void writeColumnsUsingSchema(BaseWriter.ComplexWriter writer,
                                           Collection<SchemaPath> columns,
                                           TupleMetadata schema,
                                           boolean allTextMode)

Creates writers which correspond to the specified schema for specified root writer.

Parameters:

writer - parent writer for writers to create

columns - collection of columns for which writers should be created

schema - table schema

allTextMode - whether all primitive writers should be of varchar type