GraphQL + OWL: An “Ontologized” GraphQL Interface

GraphQL + OWL: An "Ontologized" GraphQL Interface

Introduction This article describes a proposal for a GraphQL OWL-compliant interface, including queries and mutations. Instead of dealing with abstract OWL concepts, we reference a popular ontology, BIBFRAME, used in structuring bibliographic descriptions. We will go through a brief synthetic overview of GraphQL and BIBFRAME and then describe the proposal. Note the article has nothing to do […]

Indexing At Scale

INDEXING AT SCALE

This article describes a design of a mediation layer that implements a hybrid search API through GraphQL.

Apache Solr Atomic Updates: a Polymorphic Approach

Apache Solr Atomic Updates: a Polymorphic Approach

In this post we describe an approach to solve the problem of an application that requires both Full and Atomic Updates, using one of the powerful concepts in Object Oriented Programming: Polymorphism.

Digging in the Solr code: 5 minutes howto

How to quickly debug a custom Apache Solr component (e.g. request handler, query parser, filter) in your favourite IDE.
The example uses IntelliJ but it is valid for any IDE.