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

Class NullValueParser

java.lang.Object

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

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

All Implemented Interfaces:

ElementParser

Direct Known Subclasses:

NullFieldParser

public abstract class NullValueParser
extends AbstractElementParser

Parses nulls. On the first non-null token, replaces itself with a "resolved" parser to handle the actual structure.

Field Summary

Fields

Modifier and Type	Field and Description
protected String	key

Constructor Summary

Constructors

Constructor and Description
NullValueParser(JsonStructureParser structParser, String key)

Method Summary

Modifier and Type	Method and Description
void	parse(TokenIterator tokenizer) Parses nulls.
protected abstract ElementParser	resolve(TokenIterator tokenizer) Replace this parser with a new parser based on the current parse context.

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

Field Detail

key

protected final String key

Constructor Detail

NullValueParser

public NullValueParser(JsonStructureParser structParser,
                       String key)

Method Detail

parse

public void parse(TokenIterator tokenizer)

Parses nulls. On the first non-null Parses true | false | null | integer | float | string| embedded-object | { ... } | [ ... ]

resolve

protected abstract ElementParser resolve(TokenIterator tokenizer)

Replace this parser with a new parser based on the current parse context.