Class JacksonResourceReader

java.lang.Object

org.springframework.data.repository.init.JacksonResourceReader

All Implemented Interfaces:

ResourceReader

public class JacksonResourceReader
extends Object
implements ResourceReader

A ResourceReader using Jackson to read JSON into objects.

Since:

4.0

Author:

Oliver Gierke, Christoph Strobl, Mark Paluch, Johannes Englmeier

Nested Class Summary

Nested classes/interfaces inherited from interface ResourceReader

ResourceReader.Type

Constructor Summary

Constructors

Constructor	Description
JacksonResourceReader()	Creates a new JacksonResourceReader.
JacksonResourceReader(tools.jackson.databind.ObjectMapper mapper)	Creates a new JacksonResourceReader using the given ObjectMapper.

Method Summary

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

Methods inherited from class Object

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

Constructor Details

JacksonResourceReader

public JacksonResourceReader()

Creates a new JacksonResourceReader.

JacksonResourceReader

public JacksonResourceReader(tools.jackson.databind.ObjectMapper mapper)

Creates a new JacksonResourceReader using the given ObjectMapper.

Parameters:

mapper -

Method Details

setTypeKey

public void setTypeKey(@Nullable String typeKey)

Configures the JSON document's key to look up 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