Package com.graphql_java_generator.client

Class GraphQLObjectMapper

java.lang.Object

com.graphql_java_generator.client.GraphQLObjectMapper

public class GraphQLObjectMapper
extends Object

This class is a wrapper around an ObjectMapper. It allows the GraphQL plugin generated code to use its own ObjectMapper, without interfering with the containing app. This insures that the containing app can configure and use "its" ObjectMapper as it wants, and that the GraphQL plugin can use its own ObjectMapper with its own configuration.
This class is not Spring bean, as it is configured for each request, with the list of alias for this GraphQL request.

Author:

etienne-sf

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	GraphQLObjectMapper.GraphQLDeserializationProblemHandler	This class handles various deserialization problems.

Constructor Summary

Constructors

Constructor	Description
GraphQLObjectMapper(String graphQLObjectsPackage, Map<Class<?>,Map<String,Field>> aliasFields)	Standard creator for the GraphQL ObjectMapper

Method Summary

Modifier and Type	Method	Description
Map<String,com.fasterxml.jackson.databind.JsonNode>	convertValue(com.fasterxml.jackson.databind.JsonNode extensions, com.fasterxml.jackson.core.type.TypeReference<Map<String,com.fasterxml.jackson.databind.JsonNode>> typeReference)
<T> T	convertValue(Object o, Class<T> clazz)
Object	getAliasValue(com.fasterxml.jackson.core.JsonParser parser, Field targetField, com.fasterxml.jackson.core.TreeNode value)	Parse a TreeNode, and return it as a value, according to the given classes
com.fasterxml.jackson.databind.JsonNode	readTree(String content)
<T> T	readValue(String msg, Class<T> subscriptionType)
<T> T	treeToValue(com.fasterxml.jackson.core.TreeNode value, Class<T> clazz)
<T> T	treeToValue(List<?> list, Class<T> clazz)
<T> T	treeToValue(Map<?,?> map, Class<T> clazz)
com.fasterxml.jackson.databind.JsonNode	valueToTree(Object o)
String	writeValueAsString(Object o)

Methods inherited from class java.lang.Object

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

Constructor Details

GraphQLObjectMapper

public GraphQLObjectMapper(String graphQLObjectsPackage,
 Map<Class<?>,Map<String,Field>> aliasFields)

Standard creator for the GraphQL ObjectMapper

Parameters:

graphQLObjectsPackage - The package where the GraphQL objects have been generated

Method Details

getAliasValue

public Object getAliasValue(com.fasterxml.jackson.core.JsonParser parser,
 Field targetField,
 com.fasterxml.jackson.core.TreeNode value)
                     throws IOException,
GraphQLRequestExecutionException

Parse a TreeNode, and return it as a value, according to the given classes

Parameters:

parser - The current json parser

targetField - The field on which an alias has been set. This allows to retrieve the annotation on this field, to know everything about it's properties, as defined in the GraphQL schema.
It may be null, in which case enumeration values won't be properly deserialized.

value - The value to parse

Returns:

The parsed value. That is, according to the above sample: a String, a List or a List<List>

Throws:

IOException

GraphQLRequestExecutionException

convertValue

public Map<String,com.fasterxml.jackson.databind.JsonNode> convertValue(com.fasterxml.jackson.databind.JsonNode extensions,
 com.fasterxml.jackson.core.type.TypeReference<Map<String,com.fasterxml.jackson.databind.JsonNode>> typeReference)

convertValue

public <T> T convertValue(Object o,
 Class<T> clazz)

readValue

public <T> T readValue(String msg,
 Class<T> subscriptionType)
                throws com.fasterxml.jackson.databind.JsonMappingException,
com.fasterxml.jackson.core.JsonProcessingException

Throws:

com.fasterxml.jackson.databind.JsonMappingException

com.fasterxml.jackson.core.JsonProcessingException

readTree

public com.fasterxml.jackson.databind.JsonNode readTree(String content)
                                                 throws com.fasterxml.jackson.databind.JsonMappingException,
com.fasterxml.jackson.core.JsonProcessingException

Throws:

com.fasterxml.jackson.databind.JsonMappingException

com.fasterxml.jackson.core.JsonProcessingException

treeToValue

public <T> T treeToValue(com.fasterxml.jackson.core.TreeNode value,
 Class<T> clazz)
                  throws com.fasterxml.jackson.core.JsonProcessingException

Throws:

com.fasterxml.jackson.core.JsonProcessingException

treeToValue

public <T> T treeToValue(Map<?,?> map,
 Class<T> clazz)
                  throws com.fasterxml.jackson.core.JsonProcessingException

Throws:

com.fasterxml.jackson.core.JsonProcessingException

treeToValue

public <T> T treeToValue(List<?> list,
 Class<T> clazz)
                  throws com.fasterxml.jackson.core.JsonProcessingException

Throws:

com.fasterxml.jackson.core.JsonProcessingException

writeValueAsString

public String writeValueAsString(Object o)
                          throws com.fasterxml.jackson.core.JsonProcessingException

Throws:

com.fasterxml.jackson.core.JsonProcessingException

valueToTree

public com.fasterxml.jackson.databind.JsonNode valueToTree(Object o)

See Also:

• ObjectMapper.valueToTree(Object)