JsonMapper (spring-cloud-function-context 3.2.12 API)

java.lang.Object
- org.springframework.cloud.function.json.JsonMapper

Direct Known Subclasses:

GsonMapper, JacksonMapper
```
public abstract class JsonMapper
extends Object
```
Author:

Dave Syer, Oleg Zhurakousky

Constructor Summary

Constructors
Constructor Description

JsonMapper()

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`protected abstract <T> T`	`doFromJson(Object json, Type type)`
`<T> T`	`fromJson(Object json, Type type)`
`static boolean`	`isJsonString(Object value)`	Performs a simple validation on an object to see if it appears to be a JSON string.
`static boolean`	`isJsonStringRepresentsCollection(Object value)`
`static boolean`	`isJsonStringRepresentsMap(Object value)`
`byte[]`	`toJson(Object value)`
`abstract String`	`toString(Object value)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - JsonMapper
```
public JsonMapper()
```
- Method Detail
  - fromJson
```
public <T> T fromJson(Object json,
                      Type type)
```
  - doFromJson
```
protected abstract <T> T doFromJson(Object json,
                                    Type type)
```
  - toJson
```
public byte[] toJson(Object value)
```
  - toString
```
public abstract String toString(Object value)
```
  - isJsonString
```
public static boolean isJsonString(Object value)
```
    Performs a simple validation on an object to see if it appears to be a JSON string. NOTE: the validation is very rudimentary and simply checks that the object is a String and begins and ends with matching pairs of "{}" or "[]" or "\"\"" and therefore may not handle some corner cases. Primarily intended for internal of the framework.
    
    Parameters:
    
    value - candidate object to evaluate
    
    Returns:
    
    true if and object appears to be a valid JSON string, otherwise false.
  - isJsonStringRepresentsCollection
```
public static boolean isJsonStringRepresentsCollection(Object value)
```
  - isJsonStringRepresentsMap
```
public static boolean isJsonStringRepresentsMap(Object value)
```