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

Class ValueDef

java.lang.Object

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

public class ValueDef
extends Object

Description of a JSON value as inferred from looking ahead in the JSON stream. Includes a type (which can be empty for an empty array, or null), and an array size (which is 0 for simple values.)

To be clear, this is the JSON parser's best guess at a field type from the input token stream. This is not a description of the desired data type as JSON can only react to what it sees on input.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ValueDef.JsonType Description of JSON types as derived from JSON tokens.

Field Summary

Fields

Modifier and Type	Field and Description
static ValueDef	UNKNOWN
static ValueDef	UNKNOWN_ARRAY

Constructor Summary

Constructors

Constructor and Description
ValueDef(ValueDef.JsonType type)
ValueDef(ValueDef.JsonType type, int dims)

Method Summary

Modifier and Type	Method and Description
int	dimensions()
boolean	isArray()
static ValueDef.JsonType	jsonTypeFor(com.fasterxml.jackson.core.JsonToken token)
String	toString()
ValueDef.JsonType	type()

Methods inherited from class java.lang.Object

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

Field Detail

UNKNOWN_ARRAY

public static final ValueDef UNKNOWN_ARRAY

UNKNOWN

public static final ValueDef UNKNOWN

Constructor Detail

ValueDef

public ValueDef(ValueDef.JsonType type)

ValueDef

public ValueDef(ValueDef.JsonType type,
                int dims)

Method Detail

type

public ValueDef.JsonType type()

dimensions

public int dimensions()

isArray

public boolean isArray()

toString

public String toString()

Overrides:

toString in class Object

jsonTypeFor

public static ValueDef.JsonType jsonTypeFor(com.fasterxml.jackson.core.JsonToken token)