Unidentified Fruit Tree

I have seen these fruits in the supermarkets as well as the local markets, but never stopped to ask it's name. Here is the beautiful fruiting specimen. We found this atop a small waterfall in Bolinas, Philippines.

Identifying the Unknown Species

We saw this plant growing alongside the riverbed in the Philippines. No one we asked was able to identify or place a name on it. Can you?
If you know the taxonomic or common name of this plant then please share your knowledge with us. Thank you.