Apache Solr Hello World Example

Apache Solr is an Open-source REST-API based Enterprise Real-time Search and Analytics Engine Server from Apache Software Foundation. It’s core Search Functionality is built using Apache Lucene Framework and added with some extra and useful features. It is written in Java Language. SOLR stands for Searching On Lucene w/Replication. It’s main functionalities are indexing and …

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Spring Boot + Spring Data + Elasticsearch example

In this article, we will discuss about “How to create a Spring Boot + Spring Data + Elasticsearch Example”. Tools used in this article : Spring Boot 1.5.1.RELEASE Spring Boot Starter Data Elasticsearch 1.5.1.RELEASE Spring Data Elasticsearch 2.10.RELEASE Elasticsearch 2.4.4 Maven Java 8 Note SpringBoot 1.5.1.RELEASE and Spring Data Elasticsearch 2.10.RELEASE supports only ElasticSearch 2.4.0. …

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ElasticSearch Hello World Example

ElasticSearch is an Open-source Enterprise REST based Real-time Search and Analytics Engine. It’s core Search Functionality is built using Apache Lucene, but supports many other features. It is written in Java Language. It supports Store, Index, Search and Analyze Data in Real-time. Like MongoDB, ElasticSearch is also a Document-based NoSQL Data Store. Note ElasticSearch website: …

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Java 8 Optional In Depth

Java 8 has introduced a new class Optional in java.util package. It is used to represent a value is present or absent. The main advantage of this new construct is that No more too many null checks and NullPointerException. It avoids any runtime NullPointerExceptions and supports us in developing clean and neat Java APIs or …

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