Package org.springframework.data.repository.init

Class Jackson2ResourceReader

java.lang.Object

org.springframework.data.repository.init.Jackson2ResourceReader

All Implemented Interfaces:

ResourceReader

public class Jackson2ResourceReader
extends Object
implements ResourceReader

A ResourceReader using Jackson to read JSON into objects.

Since:

1.6

Author:

Oliver Gierke, Christoph Strobl, Mark Paluch

Nested Class Summary

Nested classes/interfaces inherited from interface org.springframework.data.repository.init.ResourceReader

ResourceReader.Type

Constructor Summary

Constructors

Constructor	Description
Jackson2ResourceReader()	Creates a new Jackson2ResourceReader.
Jackson2ResourceReader(com.fasterxml.jackson.databind.ObjectMapper mapper)	Creates a new Jackson2ResourceReader using the given ObjectMapper.

Method Summary

Modifier and Type	Method	Description
Object	readFrom(Resource resource, ClassLoader classLoader)	Reads a single or Collection of target objects from the given Resource.
void	setTypeKey(String typeKey)	Configures the JSON document's key to lookup the type to instantiate the object.

Methods inherited from class java.lang.Object

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

Constructor Details

Jackson2ResourceReader

public Jackson2ResourceReader()

Creates a new Jackson2ResourceReader.

Jackson2ResourceReader

public Jackson2ResourceReader(@Nullable
 com.fasterxml.jackson.databind.ObjectMapper mapper)

Creates a new Jackson2ResourceReader using the given ObjectMapper.

Parameters:

mapper -

Method Details

setTypeKey

public void setTypeKey(@Nullable
 String typeKey)

Configures the JSON document's key to lookup the type to instantiate the object. Defaults to DEFAULT_TYPE_KEY.

Parameters:

typeKey -

readFrom

public Object readFrom(Resource resource,
 @Nullable
 ClassLoader classLoader)
                throws Exception

Description copied from interface: ResourceReader

Reads a single or Collection of target objects from the given Resource.

Specified by:

readFrom in interface ResourceReader

Parameters:

resource - must not be null.

classLoader - can be null.

Returns:

Collection of target objects if resource contains multiple ones of single on. Never null.

Throws:

Exception