Reusable QtModelIndex instance

Why?

Cause

• Number of the items (if hundreds) to be viewed has a performance impact
• As a developer I want best performance. There are many cases that the user deals only with an invalid QModelIndex and represents the root index. Extra jni calls can be avoided by adding reusable Q(t)ModelIndex instance.

Customer

• TODO

Cruft

• TODO

What?

Definition

• Share a reference to a static invalid QtModelIndex to avoid extra JNI calls between jvm & native. To eliminate an invalid QtModelndex going back and forth between JVM & native, because an invalid QtModelIndex does not deliver any information other than being an invalid index (mostly when an item does not have parent aka. invalid parent).

Demarcation

Dependencies