Data Abstraction and Problem Solving with Java, CourseSmart eTextbook, 3/EDr. Janet Prichard
Sort; /** * Extension of {@link CrudRepository} to provide additional methods to retrieve entities using the pagination and * sorting abstraction. * * @author Oliver Gierke * @see Sort * @see Pageable * @see Page */ @NoRepositoryBean public interface PagingAndSortingRepository<T, ID> ...
Most traditional business intelligence (BI) solutions use this type of data warehouse. Alternatively, you can present the data through a low-latency NoSQL technology, such as HBase, or an interactive Hive database that provides a metadata abstraction over data files in the distributed data store...
but represents programs as SQL query expressions. TheSQLabstraction closely interacts with the Table API, and SQL queries can be executed over tables defined in theTable API.
Java SE 8 to the rescue! The Java API designers are updating the API with a new abstraction calledStreamthat lets you process data in a declarative way. Furthermore, streams can leverage multi-core architectures without you having to write a single line of multithread code. Sounds good, does...
JPQL allows the queries to be defined in terms of the object model, instead of the data model. Since developers are programming in Java using the object model, this is normally more intuitive. This also allows for data abstraction and database schema and database platform independence. ...
Here we’ve modeled our passenger as a JPA entity, but we could have just as easily modeled it as a MongoDB document, or any other model abstraction: @EntityclassPassenger{@Id@GeneratedValue@Column(nullable = false)privateLong id;@Basic(optional = false)@Column(nullable = false)privateString...
Since we have a little better grasp on abstraction, we can extend that to the abstract data type. If you've guessed that an abstract data type is one that we keep in the HOW part of our code, you've guessed correctly. Examples
A recent abstraction for data pipelines comes from an open source project, Apache Beam. It provides a programmatic approach to creating data pipelines, with the actual implementation of the pipeline depending on the platform on which the pipeline is deployed. Apache Beam provides a unified model fo...
This module provides integration with theRedisstore. It is also tested to work withValkeyon a best-effort basis as long as Valkey remains largely compatible with Redis. Features Connection package as low-level abstraction across multiple Redis drivers (LettuceandJedis). ...