Code & Cluster

The java.lang.Comparable and java.util.Comparator interfaces provide similar function and there is sometimes confusion as to which interf...

This is an introduction to the Apache Cassandra data model. For the benefit of those not familiar with Cassandra,  it is an open source, h...

There many NoSql databases out there and it can be confusing to determine which one is suitable for a particular use case. In this blog, we...

Serializable and Externalizable are almost forgotten interfaces in Java. And for good reason. Many applications do not need to serialize ob...

Redis is a fast in-memory key value store that we have been using to develop low latency applications. It is more a cache like Memcached o...

Most programmers are familiar with java.io package which offers a variety of classes for input/output operations to files or the network. I...

1.  Synchronized Every one knows that synchronized keyword is used to acquire a lock and serialize access to a code block. A lesser known...