de.alpharogroup.xml.json

Class JsonToObjectExtensions

java.lang.Object

de.alpharogroup.xml.json.JsonToObjectExtensions

public final class JsonToObjectExtensions
extends Object

The class JsonToObjectExtensions converts json strings to java object and java collections.

Constructor Summary

Constructors

Constructor and Description
JsonToObjectExtensions()

Method Summary

Modifier and Type	Method and Description
static <T> T	toObject(String jsonString, Class<T> clazz) Transforms the given json string into a java object.
static <T> T	toObject(String jsonString, Class<T> clazz, boolean newMapper) Transforms the given json string into a java object.
static <T> T	toObject(String jsonString, Class<T> clazz, com.fasterxml.jackson.databind.Module... modules) Transforms the given json string into a java object.
static <T> Collection<T>	toObjectCollection(String jsonString, Class<? extends Collection> collectionClass, Class<T> elementClass) Transforms the given json string into a java object Collection
static <T> List<T>	toObjectList(String jsonString, Class<T> elementClass) Transforms the given json string into a java object List

Methods inherited from class java.lang.Object

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

Constructor Detail

JsonToObjectExtensions

public JsonToObjectExtensions()

Method Detail

toObject

public static <T> T toObject(String jsonString,
                             Class<T> clazz)
                      throws com.fasterxml.jackson.core.JsonParseException,
                             com.fasterxml.jackson.databind.JsonMappingException,
                             IOException

Transforms the given json string into a java object.

Type Parameters:

T - the generic type of the return type

Parameters:

jsonString - the json string

clazz - the clazz of the generic type

Returns:

the object

Throws:

com.fasterxml.jackson.core.JsonParseException - If an error occurs when parsing the string into Object

com.fasterxml.jackson.databind.JsonMappingException - the If an error occurs when mapping the string into Object

IOException - Signals that an I/O exception has occurred.

toObject

public static <T> T toObject(String jsonString,
                             Class<T> clazz,
                             boolean newMapper)
                      throws com.fasterxml.jackson.core.JsonParseException,
                             com.fasterxml.jackson.databind.JsonMappingException,
                             IOException

Transforms the given json string into a java object.

Type Parameters:

T - the generic type of the return type

Parameters:

jsonString - the json string

clazz - the clazz of the generic type

newMapper - flag that indicates if a new ObjectMapper should be created. if true a new ObjectMapper will be created otherwise the ObjectMapper from this class will be returned.

Returns:

the object

Throws:

com.fasterxml.jackson.core.JsonParseException - If an error occurs when parsing the string into Object

com.fasterxml.jackson.databind.JsonMappingException - the If an error occurs when mapping the string into Object

IOException - Signals that an I/O exception has occurred.

toObject

public static <T> T toObject(String jsonString,
                             Class<T> clazz,
                             com.fasterxml.jackson.databind.Module... modules)
                      throws com.fasterxml.jackson.core.JsonParseException,
                             com.fasterxml.jackson.databind.JsonMappingException,
                             IOException

Transforms the given json string into a java object.

Type Parameters:

T - the generic type of the return type

Parameters:

jsonString - the json string

clazz - the clazz of the generic type

modules - The modules to register for the mapper

Returns:

the object

Throws:

com.fasterxml.jackson.core.JsonParseException - If an error occurs when parsing the string into Object

com.fasterxml.jackson.databind.JsonMappingException - the If an error occurs when mapping the string into Object

IOException - Signals that an I/O exception has occurred.

toObjectList

public static <T> List<T> toObjectList(String jsonString,
                                       Class<T> elementClass)
                                throws com.fasterxml.jackson.core.JsonParseException,
                                       com.fasterxml.jackson.databind.JsonMappingException,
                                       IOException

Transforms the given json string into a java object List

Type Parameters:

T - the generic type of the return type

Parameters:

jsonString - the json string

elementClass - the element class of the generic type

Returns:

the list with the java objects.

Throws:

com.fasterxml.jackson.core.JsonParseException - If an error occurs when parsing the string into Object

com.fasterxml.jackson.databind.JsonMappingException - the If an error occurs when mapping the string into Object

IOException - Signals that an I/O exception has occurred.

toObjectCollection

public static <T> Collection<T> toObjectCollection(String jsonString,
                                                   Class<? extends Collection> collectionClass,
                                                   Class<T> elementClass)
                                            throws com.fasterxml.jackson.core.JsonParseException,
                                                   com.fasterxml.jackson.databind.JsonMappingException,
                                                   IOException

Transforms the given json string into a java object Collection

Type Parameters:

T - the generic type of the return type

Parameters:

jsonString - the json string

collectionClass - the collection class

elementClass - the element class

Returns:

the list with the java objects.

Throws:

com.fasterxml.jackson.core.JsonParseException - If an error occurs when parsing the string into Object

com.fasterxml.jackson.databind.JsonMappingException - the If an error occurs when mapping the string into Object

IOException - Signals that an I/O exception has occurred