Class SerializationUtils

java.lang.Object

org.springframework.data.mongodb.core.query.SerializationUtils

public abstract class SerializationUtils
extends Object

Utility methods for JSON serialization.

Author:

Oliver Gierke, Christoph Strobl, Mark Paluch

Method Summary

Modifier and Type	Method	Description
static Map<String,Object>	flattenMap(@Nullable org.bson.Document source)	Flattens out a given Document.
static @Nullable String	serializeToJsonSafely(@Nullable Object value)	Serializes the given object into pseudo-JSON meaning it's trying to create a JSON representation as far as possible but falling back to the given object's Object.toString() method if it's not serializable.
static String	serializeValue(@Nullable Object value)

Methods inherited from class Object

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

Method Details

flattenMap

public static Map<String,Object> flattenMap(@Nullable org.bson.Document source)

Flattens out a given Document.

{
  _id : 1
  nested : { value : "conflux"}
}

will result in

{
  _id : 1
  nested.value : "conflux"
}

Parameters:

source - can be null.

Returns:

Collections.emptyMap() when source is null

Since:

1.8

serializeToJsonSafely

@Contract("null -> null; !null -> !null")
public static @Nullable String serializeToJsonSafely(@Nullable Object value)

Serializes the given object into pseudo-JSON meaning it's trying to create a JSON representation as far as possible but falling back to the given object's Object.toString() method if it's not serializable. Useful for printing raw Documents containing complex values before actually converting them into Mongo native types.

Parameters:

value -

Returns:

the serialized value or null.

serializeValue

public static String serializeValue(@Nullable Object value)