org.apache.drill.exec.store.easy.json.loader

Class VariantParser

java.lang.Object

org.apache.drill.exec.store.easy.json.parser.AbstractElementParser

org.apache.drill.exec.store.easy.json.parser.FullValueParser

org.apache.drill.exec.store.easy.json.loader.VariantParser

All Implemented Interfaces:

ElementParser

public class VariantParser
extends FullValueParser

Parser which accepts all JSON values and converts them to actions on a UNION vector writer. Scalar values are written to the writer directly. Object and array values create extra layers of parser and listener.

Constructor Summary

Constructors

Constructor and Description
VariantParser(JsonLoaderImpl loader, VariantWriter writer)

Method Summary

Modifier and Type	Method and Description
protected ArrayParser	buildArrayParser(TokenIterator tokenizer)
protected ObjectParser	buildObjectParser(TokenIterator tokenizer)
protected void	onValue(com.fasterxml.jackson.core.JsonToken token, TokenIterator tokenizer)

Methods inherited from class org.apache.drill.exec.store.easy.json.parser.FullValueParser

parse

Methods inherited from class org.apache.drill.exec.store.easy.json.parser.AbstractElementParser

errorFactory, structParser

Methods inherited from class java.lang.Object

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

Constructor Detail

VariantParser

public VariantParser(JsonLoaderImpl loader,
                     VariantWriter writer)

Method Detail

onValue

protected void onValue(com.fasterxml.jackson.core.JsonToken token,
                       TokenIterator tokenizer)

Specified by:

onValue in class FullValueParser

buildObjectParser

protected ObjectParser buildObjectParser(TokenIterator tokenizer)

Specified by:

buildObjectParser in class FullValueParser

buildArrayParser

protected ArrayParser buildArrayParser(TokenIterator tokenizer)

Specified by:

buildArrayParser in class FullValueParser