An evening with querydsl
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The document discusses Querydsl, an open source query framework for Java that generates type-safe queries across multiple platforms including JPA, JDO, JDBC, Lucene, Hibernate Search, MongoDB, and Collections. It allows domain changes to be reflected in queries, provides autocomplete for faster and safer query construction, and avoids issues with string concatenation and unsafe references present in alternative approaches like HQL. An example application using Querydsl with a Bookstore data model is presented to demonstrate its features.
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