com.launchdarkly.client.utils

Class FeatureStoreHelpers

java.lang.Object

com.launchdarkly.client.utils.FeatureStoreHelpers

public abstract class FeatureStoreHelpers
extends java.lang.Object

Helper methods that may be useful for implementing a FeatureStore or FeatureStoreCore.

Since:

4.6.0

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	FeatureStoreHelpers.UnmarshalException Thrown by unmarshalJson(VersionedDataKind, String) for a deserialization error.

Constructor Summary

Constructors

Constructor and Description
FeatureStoreHelpers()

Method Summary

Modifier and Type	Method and Description
static java.lang.String	marshalJson(VersionedData item) Marshals a feature store item into a JSON string.
static <T extends VersionedData> T	unmarshalJson(VersionedDataKind<T> kind, java.lang.String data) Unmarshals a feature store item from a JSON string.

Methods inherited from class java.lang.Object

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

Constructor Detail

FeatureStoreHelpers

public FeatureStoreHelpers()

Method Detail

unmarshalJson

public static <T extends VersionedData> T unmarshalJson(VersionedDataKind<T> kind,
                                                        java.lang.String data)

Unmarshals a feature store item from a JSON string. This is a very simple wrapper around a Gson method, just to allow external feature store implementations to make use of the Gson instance that's inside the SDK rather than having to import Gson themselves.

Type Parameters:

T - class of the object that will be returned

Parameters:

kind - specifies the type of item being decoded

data - the JSON string

Returns:

the unmarshaled item

Throws:

FeatureStoreHelpers.UnmarshalException - if the JSON string was invalid

marshalJson

public static java.lang.String marshalJson(VersionedData item)

Marshals a feature store item into a JSON string. This is a very simple wrapper around a Gson method, just to allow external feature store implementations to make use of the Gson instance that's inside the SDK rather than having to import Gson themselves.

Parameters:

item - the item to be marshaled

Returns:

the JSON string