Class DataType

java.lang.Object

com.bazaarvoice.jolt.modifier.DataType

Direct Known Subclasses:

DataType.LIST, DataType.MAP, DataType.RUNTIME

public abstract class DataType
extends Object

From the spec we need to guess the DataType of the incoming input This is useful for, a) in cases where the spec suggested a list but input was map and vice versa, where we can just skip processing instead of throwing random array/map errors b) in case where the input is actually null and we need to create appropriate data structure and then apply spec logic Note: By design jolt does not stop processing on bad input data

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	DataType.LIST	List type that records maxIndex from spec, and uses that to expand a source (list) properly
static final class	DataType.MAP	MAP type class
static final class	DataType.RUNTIME	Runtime type

Field Summary

Fields

Modifier and Type	Field	Description
private static final DataType.MAP	mapInstance
private static final DataType.RUNTIME	runtimeInstance

Constructor Summary

Constructors

Constructor	Description
DataType()

Method Summary

Modifier and Type	Method	Description
Object	create(String keyOrIndex, WalkedPath walkedPath, OpMode opMode)	Creates an empty map/list, as required by spec, in the parent map/list at given key/index
protected abstract Object	createValue()	MAP and LIST types overrides this method to return appropriate new map or list
static DataType	determineDataType(int confirmedArrayAtIndex, int confirmedMapAtIndex, int maxExplicitIndex)
Integer	expand(Object source)	LIST overrides this method to expand the source (list) such that in can support an index specified in spec that is outside the range input list, returns original size of the input
abstract boolean	isCompatible(Object input)	Determines if an input is compatible with current DataType

Methods inherited from class Object

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

Field Details

runtimeInstance

private static final DataType.RUNTIME runtimeInstance

mapInstance

private static final DataType.MAP mapInstance

Constructor Details

DataType

public DataType()

Method Details

determineDataType

public static DataType determineDataType(int confirmedArrayAtIndex,
 int confirmedMapAtIndex,
 int maxExplicitIndex)

isCompatible

public abstract boolean isCompatible(Object input)

Determines if an input is compatible with current DataType

createValue

protected abstract Object createValue()

MAP and LIST types overrides this method to return appropriate new map or list

expand

public Integer expand(Object source)

LIST overrides this method to expand the source (list) such that in can support an index specified in spec that is outside the range input list, returns original size of the input

create

public Object create(String keyOrIndex,
 WalkedPath walkedPath,
 OpMode opMode)

Creates an empty map/list, as required by spec, in the parent map/list at given key/index

Parameters:

keyOrIndex - of the parent object to create

walkedPath - containing the parent object

opMode - to determine if this write operation is allowed

Returns:

newly created object