com.whitestein.lsps.json.impl

Class MapStringObjectValueConverter

java.lang.Object

com.whitestein.lsps.json.impl.MapStringObjectValueConverter

All Implemented Interfaces:

ValueConverter

public class MapStringObjectValueConverter
extends java.lang.Object
implements ValueConverter

This converter handles conversion between Map<String, Object> and a JSON node representing a map. It produces a JSON node representing a JSON object with the following format:

 {
  "key1": value1,
  "key2": value2,
  ...
 }
 

Author:

jsa

Constructor Summary

Constructors

Constructor and Description
MapStringObjectValueConverter(MapType type) Creates a new instance of this converter for the given map type.

Method Summary

Modifier and Type	Method and Description
com.fasterxml.jackson.databind.JsonNode	toNode(java.lang.Object object, com.whitestein.lsps.json.impl.WriteContext context, boolean useExternalRef) Converts an LSPS object to a JsonNode.
java.lang.Object	toObject(com.fasterxml.jackson.databind.JsonNode node, com.whitestein.lsps.json.impl.ParseContext context) Creates an object from JsonNode.

Methods inherited from class java.lang.Object

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

Constructor Detail

MapStringObjectValueConverter

public MapStringObjectValueConverter(MapType type)

Creates a new instance of this converter for the given map type.

Parameters:

type - the type of map which this converter can handle

Method Detail

toNode

public com.fasterxml.jackson.databind.JsonNode toNode(java.lang.Object object,
                                                      com.whitestein.lsps.json.impl.WriteContext context,
                                                      boolean useExternalRef)

Description copied from interface: ValueConverter

Converts an LSPS object to a JsonNode.

Specified by:

toNode in interface ValueConverter

Parameters:

object - the object that should be written in the JSON string

context - the writing context

Returns:

a node representation for the JSON tree.

toObject

public java.lang.Object toObject(com.fasterxml.jackson.databind.JsonNode node,
                                 com.whitestein.lsps.json.impl.ParseContext context)

Description copied from interface: ValueConverter

Creates an object from JsonNode. It does not create LSPS objects directly. The returned object can be java.util.List, a java.util.Set, java.util.Map, RecordData or Reference. The returned object which can represent a complex data structure has to be processed further prior to converting it to LSPS objects. If this node is a root node of the JSON document then after this method is returned it is necessary to call ParseContext.resolveReferences(Object) to resolve all found references. Once all the references are resolved the returned object can be easily converted to LSPS object following this mappings:

Object	LSPS
RecordData	RecordHolder
Set	SetHolder
List	ListHolder
Map	MapHolder
simple types	simple types

Specified by:

toObject in interface ValueConverter

Parameters:

node - the JSON node

context - the parsing context

Returns:

an object easily convertible to LSPS object