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Core Java
Java PreparedStatement with LIKE Wildcards Example
Searching text using SQL’s LIKE operator is a common requirement in many applications. When working with JDBC, developers typically use…
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Core Java
How To Run An LLM Locally To Interact With Your Documents
Running Google Gemini allows you to query, summarize, and analyze your documents while leveraging a cloud-based model optimized for security…
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DevOps
Kafka Idempotence Performance Analysis
Apache Kafka is designed for high-throughput, fault-tolerant, distributed messaging. In real-world systems, producers may retry sending messages due to network…
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Enterprise Java
MCP Annotations in Spring AI
Spring AI introduces first-class support for the Model Context Protocol (MCP), enabling AI models to discover tools, data, and prompts…
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Enterprise Java
Multitenant Spring Authorization Server
Modern SaaS platforms often serve multiple customers (tenants) using a single deployment. Each tenant may require isolated OAuth2 clients, users,…
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Software Development
Turn Off Automatic Code Formatting in Eclipse
Eclipse IDE is one of the most popular development environments for Java and other languages. While automatic code formatting helps…
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Java
Renaming Fields in Elasticsearch Mappings
In Elasticsearch, index mappings define the structure and data types of fields stored in an index. Once a field is…
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Enterprise Java
Sending Emails Through Microsoft Exchange Server
Microsoft Exchange Server is widely used in enterprise environments for managing emails, calendars, and contacts. Applications often need to send…
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DevOps
How to Reset Consumer Offsets in Kafka
In distributed messaging systems, consumer offsets determine where a consumer resumes reading messages from a topic partition. Resetting consumer offsets…
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