GETTING STARTED JAVA LWJGL HOW TO

diff.visit(new DiffNode.Visitor()ДЇinal Object baseValue = node.canonicalGet(base) ДЇinal Object workingValue = node.canonicalGet(working) ДЇinal String message = node.getPath() + ' changed from ' +

GETTING STARTED JAVA LWJGL HOW TO

Thankfully the DiffNode provides a method called canonicalGet, which knows exactly how to do that. In order to do that, we need to extract those values from the input objects. Let's say we want to expand the example above by printing the actual values of the base and the working version.

This visitor pattern is very powerful when combined with the next feature: object accessors. This way you don't need to know the structure of the objects your are diffing and can simply deal with the returned nodes how you see fit. This visitor will be called for every single node, including the root node itself. The DiffNode provides a visit method which takes a Visitor as argument. (node.getPath() + ' => ' + node.getState()) Public void node(DiffNode node, Visit visit) Let's say we want to print the path of each node along with its state: diff.visit(new DiffNode.Visitor() Of course there is an easy way to do that, too. In this example we query the child node directly via NodePath, but in most cases you probably just want to iterate over all changes. And since its value differs between the base and the working object, getState returns the state CHANGED. That's the node representing the map entry with key 'item'. Since only one item has changed, the root node has one child node. So the root object (the map) contains changes. The map contains one entry with the same key and different values.

NodePath itemPath = NodePath.startBuilding().mapKey('item').build() ДЄssert diff.getChild(itemPath).getState() = Each node contains information about how the associated object has changed between the two given objects: assert diff.hasChanges() In this case this means they represent the entries of the maps. This represents the root of the object graph and contains other DiffNode instances, which represent the next level in the graph. We created a new ObjectDiffer and invoked its compare method, passing it two objects as arguments. Map base = Collections.singletonMap('item', 'bar') ДiffNode diff = ObjectDifferBuilder.buildDefault().compare(working, base) Map working = Collections.singletonMap('item', 'foo') Now let's start with a very easy scenario: Comparing two maps. However, in more complex scenarios it is flexible enough to let you tailor it to your needs. It can handle a wide variety of object structures without the need for any configuration. Java-object-diff provides a very simple API and tries to make everything as self-explanatory as possible.

Getting started java lwjgl