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Enterprise Java
How to map PostgreSQL Enums to JPA entity properties using Hibernate
Introduction The open-source hibernate-types project allows you to map JSON, ARRAY, YearMonth, Month or database-specific columns (e.g. INET addresses). In…
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Software Development
A beginner’s guide to read and write skew phenomena
Introduction In my article about ACID and database transactions, I introduced the three phenomena described by the SQL standard: dirty…
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Enterprise Java
How does the MySQL JDBC driver handle prepared statements
Prepared statement types While researching for the Statement Caching chapter in my High-Performance Java Persistence book, I got the chance…
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Software Development
A paranoid’s guide to backing up a working folder
Oops time Leanpub supports multiple storage engines and a private GitHub repository is probably the safest way to the backing…
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Enterprise Java
How does FlexyPool support both Connection proxies and decorators
Proxies FlexyPool monitors connection pool usage and so it needs to intercept the connection close method call. For simplicity sake,…
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Enterprise Java
Why you should always use connection pooling with Oracle XE
Introduction Oracle Express Edition is the free version of Oracle Enterprise Edition and its smaller size makes it very convenient…
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Enterprise Java
How does FlexyPool support the Dropwizard Metrics package renaming
Introduction FlexyPool relies heavily on Dropwizard (previously Codahale) Metrics for monitoring the connection pool usage. Being integrated into Dropwizard, the…
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Enterprise Java
How to monitor a Java EE DataSource
Introduction FlexyPool is an open-source framework that can monitor a DataSource connection usage. This tool come out of necessity, since…
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Enterprise Java
How does Hibernate Query Cache work
Introduction Now that I covered both Entity and Collection caching, it’s time to investigate how Query Caching works. The Query…
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