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MappingCosmosConverter Class

Package:

com.azure.spring.data.cosmos.core.convert

Maven Artifact:

com.azure:azure-spring-data-cosmos:5.19.0

• java.lang.Object
• • com.azure.spring.data.cosmos.core.convert.MappingCosmosConverter

Implements

org.springframework.context.ApplicationContextAware org.springframework.data.convert.EntityConverter<CosmosPersistentEntity<?>,CosmosPersistentProperty,Object,com.fasterxml.jackson.databind.JsonNode>

public class MappingCosmosConverter
implements org.springframework.data.convert.EntityConverter<CosmosPersistentEntity<?>,CosmosPersistentProperty,Object,com.fasterxml.jackson.databind.JsonNode>, org.springframework.context.ApplicationContextAware

A converter class between common types and cosmosItemProperties

Field Summary

Modifier and Type	Field and Description
protected org.springframework.core.convert.support.GenericConversionService	conversionService Generic conversion service
protected final org.springframework.data.mapping.context.MappingContext<<?>,CosmosPersistentProperty>	mappingContext Mapping context

Constructor Summary

Constructor	Description
MappingCosmosConverter(MappingContext<? extends CosmosPersistentEntity<?>,CosmosPersistentProperty> mappingContext, ObjectMapper objectMapper)	Initialization

Method Summary

Modifier and Type	Method and Description
R	read(Class<R> type, JsonNode jsonNode)
List<String>	getTransientFields(T objectToSave, CosmosEntityInformation<T,?> entityInfo) To get transient fields
Map<Field,Object>	getTransientFieldsMap(T object, List<String> transientFields) To get transient fields and their values
com.fasterxml.jackson.databind.JsonNode	repopulateTransientFields(JsonNode responseItem, Map<Field,Object> transientValues) To repopulate any transient fields that were stripped from the original object
com.fasterxml.jackson.databind.JsonNode	writeJsonNode(Object sourceEntity, List<String> transientFields) To write source entity as a cosmos item
org.springframework.context.ApplicationContext	getApplicationContext() To get application context
org.springframework.core.convert.ConversionService	getConversionService()
org.springframework.data.mapping.context.MappingContext<<?>,CosmosPersistentProperty>	getMappingContext() To get mapping context
void	setApplicationContext(ApplicationContext applicationContext)
static Object	toCosmosDbValue(Object fromPropertyValue) Convert a property value to the value stored in CosmosDB
void	write(Object source, JsonNode sink)
com.fasterxml.jackson.databind.JsonNode	writeJsonNode(Object sourceEntity) To write source entity as a cosmos item

Methods inherited from java.lang.Object

clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Details

conversionService

protected GenericConversionService conversionService

Generic conversion service

mappingContext

protected final MappingContext,CosmosPersistentProperty> mappingContext

Mapping context

Constructor Details

MappingCosmosConverter

public MappingCosmosConverter(MappingContext,CosmosPersistentProperty> mappingContext, ObjectMapper objectMapper)

Initialization

Parameters:

mappingContext - must not be null

objectMapper - must not be null

Method Details

read

public R read(Class type, JsonNode jsonNode)

Parameters:

type

jsonNode

getTransientFields

public List getTransientFields(T objectToSave, CosmosEntityInformation entityInfo)

To get transient fields

Parameters:

objectToSave - must not be null

entityInfo - entity information

Returns:

List

getTransientFieldsMap

public Map getTransientFieldsMap(T object, List transientFields)

To get transient fields and their values

Parameters:

object - must not be null

transientFields - transient fields

Returns:

HashMap

repopulateTransientFields

public JsonNode repopulateTransientFields(JsonNode responseItem, Map transientValues)

To repopulate any transient fields that were stripped from the original object

Parameters:

responseItem - must not be null

transientValues - transient fields and their values

Returns:

CosmosItemProperties

writeJsonNode

public JsonNode writeJsonNode(Object sourceEntity, List transientFields)

To write source entity as a cosmos item

Parameters:

sourceEntity - must not be null

transientFields - transient fields

Returns:

CosmosItemProperties

getApplicationContext

public ApplicationContext getApplicationContext()

To get application context

Returns:

ApplicationContext

getConversionService

public ConversionService getConversionService()

getMappingContext

public MappingContext,CosmosPersistentProperty> getMappingContext()

To get mapping context

Returns:

MappingContext

setApplicationContext

public void setApplicationContext(ApplicationContext applicationContext)

Parameters:

applicationContext

toCosmosDbValue

public static Object toCosmosDbValue(Object fromPropertyValue)

Convert a property value to the value stored in CosmosDB

Parameters:

fromPropertyValue - source property value

Returns:

fromPropertyValue converted property value stored in CosmosDB

write

public void write(Object source, JsonNode sink)

Parameters:

source

sink

writeJsonNode

public JsonNode writeJsonNode(Object sourceEntity)

To write source entity as a cosmos item

Parameters:

sourceEntity - must not be null

Returns:

CosmosItemProperties