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Edmonds-Karp Max Flow in Java
Maximum flow is built by sending as much flow as possible from a source vertex to a sink vertex across directed edges with fixed capacity limits.
9 hrs ago
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Alexander Obregon
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SQL Table Identity Columns
Identity columns let a table assign a new numeric value during an insert.
Jun 30
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Alexander Obregon
Resilience4j Circuit Breakers in Spring Boot That Actually Trip
Circuit breakers protect Spring Boot services from sending every request into a dependency that is already failing, slow, or overloaded.
Jun 29
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Alexander Obregon
Weekly Recap – June 28th, 2026
More Spring Boot and SQL
Jun 28
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Alexander Obregon
1
Rendezvous Hashing for Spring Boot Routing
For a Spring Boot service, rendezvous hashing gives repeatable routing for the same tenant, cache lookup, account id, or request name without storing a…
Jun 26
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Alexander Obregon
1
SQL Text Sorting With Collations
Text sorting can feel small until two databases give different answers for the same text.
Jun 25
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Alexander Obregon
Cache Stampede Control in Spring Boot With Single Flight
Cache-backed services can break down when a popular value expires and a rush of requests misses the cache at the same time.
Jun 24
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Alexander Obregon
Sparse Columns in SQL Server
Large SQL Server tables can collect a long tail of optional attributes when the main entity stays the same, but different categories need different…
Jun 23
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Alexander Obregon
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Alexander Obregon's Substack
Weekly recaps of what I’ve published, plus updates, extras, and some exclusive content you won’t find on my Medium.
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