Spring Batch Mastery

Spring Batch Framework covered in 4 levels of difficulty: beginner, intermediate, advanced and expert, with source code

Created by: Kiryl Yesipau
Technology Expert & Mentor

Created by: Yestastic Tech Labs LLC
Top-Tier Learning in Technology

What Will I Learn?

• (Beginner) Clearly understand foundational concepts of the framework, such as Job, Step, ItemReader, ItemProcessor and ItemWriter
• (Beginner) Learn how to interact with plain text format in terms of read/write, using FlatFileItemReader and FlatFileItemWriter
• (Beginner) Learn how to read and write data in XML format using StaxEventItemReader and StaxEventItemWriter
• (Beginner) Build command line application leveraging CommandLineJobRunner and DefaultBatchConfiguration
• (Intermediate) Solid understanding of chunk-oriented processing concept and chunkSize / commitInterval setting
• (Intermediate) In-depth insight into concepts of JobInstance, JobExecution, StepExecution and ExecutionContext, and how they work together
• (Intermediate) Excellent comprehension of restartability concept, how ExecutionContext is reused or not reused, and relevant settings
• (Intermediate) Both cursor and paging approaches for reading data from relational databases with focus on JdbcCursorItemReader and JdbcPagingItemReader
• (Intermediate) Data write to relational databases with JdbcBatchItemWriter
• (Intermediate) How and when to use accepted database read design patterns, e.g. stateless database reading and driving query
• (Intermediate) Read & write JSON format with JsonFileItemWriter and JsonFileItemReader
• (Intermediate) Building conditional (if / else) step execution flows
• (Intermediate) Using JUnit Spring Batch tools for writing end-to-end tests for jobs and steps, with relevant mocking techniques explained
• (Advanced) Hands-on experience on integrating Spring Batch and Spring Boot to run workflows as a web application with HTTP endpoints
• (Advanced) The approach of reading multi-line records from plain text files, as well as using MultiResourceItemReader to read from collection of files
• (Advanced) Passing ExecutionContext parameters between steps with ExecutionContextPromotionListener
• (Advanced) Accessing ExecutionContext and JobParameters declaratively with @StepScope
• (Advanced) Appending headers and footers to plain text output with FlatFileHeaderCallback and FlatFileFooterCallback
• (Advanced) Building and running split parallel step flows
• (Advanced) In-depth and nuanced understanding of retry and skip capabilities of Spring Batch
• (Advanced) JUnit testing of @StepScope defined components
• (Expert) Understanding design principles and practical tools of running steps in multiple threads
• (Expert) Broad coverage of remote chunking approach with pros and cons analyzed
• (Expert) In depth understanding of partitioning concept, as well as APIs provided by the framework, including PartitionStep, PartitionHandler and Partitioner
• (Expert) Hands-on experience implementing partitioned Spring Batch jobs, both local and distributed

Requirements

• No Spring Batch experience required; moreover, beginner material is covered comprehensively in the Beginner Chapter
• Ability to read and understand Java code is required
• Classic Spring Framework understanding is not required, however it's beneficial
• In case you'd like to run the application code, ability to install required tools (described in README files), such as java, gradle, mysql, etc., is required

Target audience

• In terms of level, anyone will find the course useful, since covered topics range from entry level to technical architect and expert level
• In terms of application, the course is both useful for job seekers preparing for interview and for practitioners aiming to learn or elevate their Spring Batch skills