Package javax.json

Interface JsonPatch

public interface JsonPatch

This interface represents an immutable implementation of a JSON Patch as defined by RFC 6902.

A JsonPatch can be instantiated with Json.createPatch(JsonArray) by specifying the patch operations in a JSON Patch. Alternately, it can also be constructed with a JsonPatchBuilder.

The following illustrates both approaches.

1. Construct a JsonPatch with a JSON Patch.

   JsonArray contacts = ... // The target to be patched
   JsonArray patch = ...  ; // JSON Patch
   JsonPatch jsonpatch = Json.createPatch(patch);
   JsonArray result = jsonpatch.apply(contacts);
  

2. Construct a JsonPatch with JsonPatchBuilder.

   JsonPatchBuilder builder = Json.createPatchBuilder();
   JsonArray result = builder.add("/John/phones/office", "1234-567")
                             .remove("/Amy/age")
                             .build()
                             .apply(contacts);
  

Since:

1.1

See Also:

• RFC 6902

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static enum	JsonPatch.Operation	This enum represents the list of valid JSON Patch operations as defined by RFC 6902.

Method Summary

Modifier and Type	Method	Description
<T extends JsonStructure> T	apply(T target)	Applies the patch operations to the specified target.
JsonArray	toJsonArray()	Returns the JsonPatch as JsonArray.

Method Details

apply

<T extends JsonStructure> T apply(T target)

Applies the patch operations to the specified target. The target is not modified by the patch.

Type Parameters:

T - the target type, must be a subtype of JsonStructure

Parameters:

target - the target to apply the patch operations

Returns:

the transformed target after the patch

Throws:

JsonException - if the supplied JSON Patch is malformed or if it contains references to non-existing members

toJsonArray

JsonArray toJsonArray()

Returns the JsonPatch as JsonArray.

Returns:

this JsonPatch as JsonArray