Package org.apache.drill.exec.store.easy.json.extended

Class BaseExtendedValueParser

java.lang.Object

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

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

org.apache.drill.exec.store.easy.json.extended.BaseExtendedValueParser

All Implemented Interfaces:

ElementParser

Direct Known Subclasses:

MongoBinaryValueParser, MongoDateValueParser, SimpleExtendedValueParser

public abstract class BaseExtendedValueParser
extends ValueParser

Field Summary

Fields

Modifier and Type	Field	Description
protected static final String	SCALAR_HINT

Fields inherited from class org.apache.drill.exec.store.easy.json.parser.ValueParser

listener

Constructor Summary

Constructors

Constructor	Description
BaseExtendedValueParser(JsonStructureParser structParser, ScalarListener listener)

Method Summary

Modifier and Type	Method	Description
protected abstract String	formatHint()
protected void	parseExtended(TokenIterator tokenizer, String typeName)	Parse a value in extended form:
protected void	requireField(TokenIterator tokenizer, String fieldName)
protected com.fasterxml.jackson.core.JsonToken	requireScalar(TokenIterator tokenizer)
protected void	requireToken(com.fasterxml.jackson.core.JsonToken token, com.fasterxml.jackson.core.JsonToken expected)
protected void	requireToken(TokenIterator tokenizer, com.fasterxml.jackson.core.JsonToken expected)
protected RuntimeException	syntaxError()
protected abstract String	typeName()

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

Methods inherited from interface org.apache.drill.exec.store.easy.json.parser.ElementParser

parse

Field Details

SCALAR_HINT

protected static final String SCALAR_HINT

See Also:

• Constant Field Values

Constructor Details

BaseExtendedValueParser

public BaseExtendedValueParser(JsonStructureParser structParser,
 ScalarListener listener)

Method Details

typeName

protected abstract String typeName()

parseExtended

protected void parseExtended(TokenIterator tokenizer,
 String typeName)

Parse a value in extended form:

 {"$type": value}</code

.

Uses the given type name. Can parse an entire field, or a subfield, as in the V2 date format.

requireToken

protected void requireToken(TokenIterator tokenizer,
 com.fasterxml.jackson.core.JsonToken expected)

requireToken

protected void requireToken(com.fasterxml.jackson.core.JsonToken token,
 com.fasterxml.jackson.core.JsonToken expected)

requireScalar

protected com.fasterxml.jackson.core.JsonToken requireScalar(TokenIterator tokenizer)

requireField

protected void requireField(TokenIterator tokenizer,
 String fieldName)

syntaxError

protected RuntimeException syntaxError()

formatHint

protected abstract String formatHint()