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Imagine having a tool that can automatically detect if you are using JPA and Hibernate properly. Hypersistence Optimizer is that tool!
High-Performance Hibernate Tutorial
I’ve been using Hibernate for almost a decade and I admit it was not an easy journey. These tutorials are snippets from my High-Performance Java Persistence book, whose main goal is to show you how to make your data access layer run a high-speeds.
This material is useful for both beginners and experienced developers, so enjoy reading it.
The best Tutorials on High-Performance Hibernate #Hibernate #Java #Tutorials #NewYearsResolution #Career https://t.co/wQNjz6kK24 pic.twitter.com/4wDmQYvswq
— Java (@java) January 1, 2019
Tips and Best Practices
- Why and when you should use JPA
- The best way to prevent JPA and Hibernate performance issues
- How to detect JPA and Hibernate performance issues automatically using Hypersistence Optimizer
- Tuning Spring Petclinic JPA and Hibernate configuration with Hypersistence Optimizer
- Hibernate Query Performance Tuning
- Spring Boot performance tuning
- Spring Boot performance monitoring
- A beginner’s guide to the high-performance-java-persistence GitHub repository
- Hibernate performance tuning tips
- 14 High-Performance Java Persistence tips
- 9 High-Performance Tips when using MySQL with JPA and Hibernate
- 9 High-Performance Tips when using PostgreSQL with JPA and Hibernate
- How to detect the Hibernate N+1 query problem during testing
- Hibernate slow query log
- A beginner’s guide to SQL injection and how you should prevent it
- How to store date, time, and timestamps in UTC time zone with JDBC and Hibernate
- The fastest way to update a table row when using Hibernate and Oracle
- How to use database-specific or Hibernate-specific features without sacrificing portability
- How to use the Hibernate
SessiondoWorkanddoReturningWorkmethods - JPA providers market share
Bootstrapping
- A beginner’s guide to JPA persistence.xml file
- How to bootstrap Hibernate without the
persistence.xmlconfiguration file - How to bootstrap JPA programmatically without the
persistence.xmlconfiguration file - JDBC Driver Connection URL strings
- JDBC Driver Maven dependency list
- How to get access to database table metadata with Hibernate 5
- How to get the entity mapping to database table binding metadata from Hibernate
Schema Management
Mappings
Basic Types
- A beginner’s guide to Hibernate Types
- How to implement a custom basic type using Hibernate
UserType - JPA AttributeConverter – A Beginner’s Guide
- How to map calculated properties with JPA and Hibernate
@Formulaannotation - How to map calculated properties with Hibernate
@Generatedannotation - How to emulate
@CreatedByand@LastModifiedByfrom Spring Data using the@GeneratorTypeHibernate annotation - How to map Date and Timestamp with JPA and Hibernate
- What’s new in JPA 2.2 – Java 8 Date and Time Types
- The best way to map a Java 1.8 Optional entity attribute with JPA and Hibernate
- The best way to map an Enum Type with JPA and Hibernate
- How to map a JPA entity to a View or SQL query using Hibernate
- How to map the PostgreSQL inet type with JPA and Hibernate
- How to map a PostgreSQL Range column type with JPA and Hibernate
- How to map the Java YearMonth type with JPA and Hibernate
- How to map
java.time.Yearandjava.time.Monthwith JPA and Hibernate - How to map a PostgreSQL Interval to a Java
Durationwith Hibernate - How to escape SQL reserved keywords with JPA and Hibernate
JSON
- The hibernate-types open-source project offers extra Hibernate Types (e.g. JSON, ARRAY)
- How to map JSON objects using generic Hibernate Types
- How to map Oracle JSON columns using JPA and Hibernate
- How to map SQL Server JSON columns using JPA and Hibernate
- How to store schema-less EAV (Entity-Attribute-Value) data using JSON and Hibernate
- How to map a String JPA property to a JSON column using Hibernate
- How to map JSON collections using JPA and Hibernate
- Java Map to JSON mapping with JPA and Hibernate
- How to map Java Records to JSON columns using Hibernate
- How to encrypt and decrypt JSON properties with JPA and Hibernate
- How to customize the Jackson ObjectMapper used by Hibernate-Types
- How to customize the JSON Serializer used by Hibernate-Types
- How to fix the Hibernate “No Dialect mapping for JDBC type” issue
- How to fix the Hibernate “column is of type jsonb but expression is of type bytes” issue
ARRAY
- How to map a PostgreSQL ARRAY to a Java List with JPA and Hibernate
- How to map Java and SQL arrays with JPA and Hibernate
- How to map a PostgreSQL Enum ARRAY to a JPA entity property using Hibernate
- Multidimensional array mapping with JPA and Hibernate
- Hibernate HSQLDB ARRAY Type
Equals and HashCode
- The best way to implement equals, hashCode, and toString with JPA and Hibernate
- How to implement equals and hashCode using the entity identifier (primary key)
- How to implement equals and hashCode using the entity natural identifier
Relationships
- A beginner’s guide to database table relationships
- ManyToOne JPA and Hibernate association best practices
- The best way to map a @OneToOne relationship with JPA and Hibernate
- How to change the @OneToOne shared primary key column name with JPA and Hibernate
- The best way to map a @OneToMany relationship with JPA and Hibernate
- The best way to use the @ManyToMany annotation with JPA and Hibernate
- The best way to map a many-to-many association with extra columns when using JPA and Hibernate
- The best way to map a Composite Primary Key with JPA and Hibernate
- How to map a composite identifier using an automatically @GeneratedValue with JPA and Hibernate
- How to synchronize bidirectional entity associations with JPA and Hibernate
- How to map a @ManyToOne association using a non-Primary Key column
- How to customize an entity association JOIN ON clause with Hibernate
@JoinFormula - How to map a JPA
@ManyToOnerelationship to a SQL query using the Hibernate@JoinFormulaannotation - How to optimize unidirectional collections with JPA and Hibernate
- How do Set and List collections behave with JPA and Hibernate
Advanced mapping techniques
- Fluent API entity building with JPA and Hibernate
- How to map an immutable entity with JPA and Hibernate
- How to map the latest child of a parent entity using Hibernate
@JoinFormula - How to map multiple JPA entities to one database table with Hibernate
- How to update only a subset of entity attributes using JPA and Hibernate @DynamicUpdate
- How to use external XML mappings files with JPA and Hibernate
- How to encrypt and decrypt data with Hibernate
- The best way to soft delete with Hibernate
- How to fix “wrong column type encountered” schema-validation errors with JPA and Hibernate
- How to audit entity modifications using the JPA
@EntityListeners,@Embedded, and@Embeddableannotations - How to use
@PrePersistand@PreUpdateon Embeddable with JPA and Hibernate - How to map camelCase properties to snake_case column names with Hibernate
Identifiers
- A beginner’s guide to natural and surrogate database keys
- Hibernate Identity, Sequence, and Table (Sequence) generator
- How to generate JPA entity identifier values using a database sequence
- The hi/lo algorithm
- Hibernate pooled and pooled-lo identifier generators
- A beginner’s guide to Hibernate enhanced identifier generators
- How to migrate the hilo Hibernate identifier optimizer to the pooled strategy
- Why you should never use the TABLE identifier generator with JPA and Hibernate
- Why should not use the AUTO JPA GenerationType with MySQL and Hibernate
- How to replace the TABLE identifier generator with either SEQUENCE or IDENTITY in a portable way
- PostgreSQL SERIAL column and Hibernate IDENTITY generator
- How to combine the Hibernate assigned generator with a sequence or an identity column
- How to implement a custom String-based sequence identifier generator with Hibernate
- MariaDB 10.3 supports database sequences
- Hibernate and UUID identifiers
- How to use a JVM or database auto-generated UUID identifier with JPA and Hibernate
- The best way to map a @NaturalId business key with JPA and Hibernate
Inheritance
- The best way to use entity inheritance with JPA and Hibernate
- The best way to map the SINGLE_TABLE inheritance with JPA and Hibernate
- MySQL 8 support for custom SQL CHECK constraints simplifies SINGLE_TABLE inheritance data integrity validation rules
- The best way to map the @DiscriminatorColumn with JPA and Hibernate
- How to inherit properties from a base class entity using
@MappedSuperclasswith JPA and Hibernate - How to order entity subclasses by their class type using JPA and Hibernate
Connection Management
- The simple scalability equation
- The anatomy of Connection Pooling
- Why you should use FlexyPool
- How to monitor your connection pool with FlexyPool
- How to monitor a Java EE DataSource
- Why you should always use hibernate.connection.provider_disables_autocommit for resource-local JPA transactions
- How does aggressive connection release work in Hibernate
Persistence Context
- The JPA and Hibernate first-level cache
- A beginner’s guide to JPA/Hibernate entity state transitions
- A beginner’s guide to JPA and Hibernate Cascade Types
- How does orphanRemoval work with JPA and Hibernate
- A beginner’s guide to flush strategies in JPA and Hibernate
- How does persist and merge work in JPA
- How do JPA persist, merge and Hibernate save, update, saveOrUpdate work
- How to merge entity collections with JPA and Hibernate
- How does AUTO flush strategy work in Hibernate
- How to override the default Hibernate Session FlushMode
- How do JPA and Hibernate define the AUTO flush mode
- A beginner’s guide to Hibernate flush operation order
- The best way to clone or duplicate an entity with JPA and Hibernate
- How to intercept entity changes with Hibernate event listeners
- The anatomy of Hibernate dirty checking mechanism
- How to customize Hibernate dirty checking mechanism
- How to enable bytecode enhancement dirty checking in Hibernate
- How does the bytecode enhancement dirty checking mechanism work in Hibernate 4.3
Fetching
- Pagination best practices
- How do find and getReference EntityManager methods work when using JPA and Hibernate
- N+1 query problem with JPA and Hibernate
- The best way to fetch multiple entities by id using JPA and Hibernate
- A beginner’s guide to Hibernate fetching strategies
- EAGER fetching is a code smell
- The best way to map a projection query to a DTO (Data Transfer Object) with JPA and Hibernate
- How to write a compact DTO projection query with JPA
- How to fetch a one-to-many DTO projection with JPA and Hibernate
- The best way to handle the LazyInitializationException
- The best way to lazy load entity attributes using JPA and Hibernate
- The best way to initialize LAZY entity and collection proxies with JPA and Hibernate
- Why you should avoid EXTRA Lazy Collections with Hibernate
- ResultSet statement fetching with JDBC and Hibernate
- The best way to fix the Hibernate
MultipleBagFetchException - How to fetch entities multiple levels deep with Hibernate
- The Open Session In View Anti-Pattern
- The hibernate.enable_lazy_load_no_trans Anti-Pattern
- How does MySQL result set streaming perform vs fetching the whole JDBC ResultSet at once
- How does a JPA Proxy work and how to unproxy it with Hibernate
- The best way to fix the Hibernate “HHH000104: firstResult/maxResults specified with collection fetch; applying in memory!” warning message
- How to detect HHH000104 issues with the
hibernate.query.fail_on_pagination_over_collection_fetchconfiguration property
Concurrency Control
- Data knowledge stack
- A beginner’s guide to ACID and database transactions
- A beginner’s guide to database deadlock
- How does the 2PL (Two-Phase Locking) algorithm work
- How does MVCC (Multi-Version Concurrency Control) work
- How to get the current database transaction id
- How to log the database transaction id using MDC (Mapped Diagnostic Context)
- How does the entity version property work when merging with JPA and Hibernate
- Optimistic locking version property with JPA and Hibernate
- The best way to map an entity version property with JPA and Hibernate
- How do PostgreSQL advisory locks work
- How to implement a database job queue using SKIP LOCKED
- A beginner’s guide to database locking and the lost update phenomena
- How to prevent lost updates in long conversations
- A beginner’s guide to Dirty Read anomaly
- A beginner’s guide to Non-Repeatable Read anomaly
- A beginner’s guide to Phantom Read anomaly
- A beginner’s guide to Read and Write Skew phenomena
- A beginner’s guide to the Write Skew anomaly, and how it differs between 2PL and MVCC
- How does database pessimistic locking interact with INSERT, UPDATE, and DELETE SQL statements
- How do UPSERT and MERGE work in Oracle, SQL Server, PostgreSQL, and MySQL
- Logical vs physical clock optimistic locking
- How to retry JPA transactions after an OptimisticLockException
- How does Hibernate guarantee application-level repeatable reads
- Hibernate collections optimistic locking
- How to address the OptimisticLockException in JPA and Hibernate
- How to prevent OptimisticLockException with Hibernate versionless optimistic locking
- A beginner’s guide to transaction isolation levels in enterprise Java
- A beginner’s guide to Java Persistence locking
- How does LockModeType.OPTIMISTIC work in JPA and Hibernate
- How to fix optimistic locking race conditions with pessimistic locking
- How does LockModeType.OPTIMISTIC_FORCE_INCREMENT work in JPA and Hibernate
- How does LockModeType.PESSIMISTIC_FORCE_INCREMENT work in JPA and Hibernate
- How do LockModeType.PESSIMISTIC_READ and LockModeType.PESSIMISTIC_WRITE work in JPA and Hibernate
- How does CascadeType.LOCK works in JPA and Hibernate
- How to increment the parent entity version whenever a child entity gets modified with JPA and Hibernate
- Spring read-only transaction Hibernate optimization
- Read-write and read-only transaction routing with Spring
Batching
- Batch processing best practices
- The best way to do batch processing with JPA and Hibernate
- How to batch INSERT and UPDATE statements with Hibernate
- How to batch DELETE statements with Hibernate
- How to customize the JDBC batch size for each Persistence Context with Hibernate
- How to find which statement failed in a JDBC Batch Update
- How to optimize the merge operation using update while batching with JPA and Hibernate
- How to enable multi-row inserts with the PostgreSQL reWriteBatchedInserts configuration property
Queries
- How does a relational database execute SQL statements and prepared statements
- A beginner’s guide to JPA and Hibernate
QuerysetParametermethod - A beginner’s guide to JPA and Hibernate query hints
- Query timeout with JPA and Hibernate
- The best way to use the JPA SqlResultSetMapping
- How to return a Map result from a JPA or Hibernate query
- How to improve statement caching efficiency with IN clause parameter padding
- A beginner’s guide to the Hibernate JPQL and Native Query Plan Cache
- How to optimize JPQL and Criteria API query plans with Hibernate Statistics
- How to intercept and modify SQL queries with the Hibernate StatementInspector
- The best way to use the JPQL DISTINCT keyword with JPA and Hibernate
- How to JOIN unrelated entities with JPA and Hibernate
- How to resolve the Hibernate global database schema and catalog for native SQL queries
- How to map table rows to columns using SQL PIVOT or CASE expressions
- The JPA EntityManager createNativeQuery is a Magic Wand
- Why you should use the Hibernate ResultTransformer to customize result set mappings
- The best way to use a Hibernate ResultTransformer
- Why you should definitely learn SQL Window Functions
- Query pagination with JPA and Hibernate
- What’s new in JPA 2.2 – Stream the result of a Query execution
- How to get the actual execution plan for an Oracle SQL query using Hibernate query hints
- How to solve the PostgreSQL :: cast operator issue with JPA and Hibernate
- The best way to use SQL functions in JPQL or Criteria API queries with JPA and Hibernate
- How to execute SQL functions with multiple parameters in a JPQL query with Hibernate
- How to query parent rows when all children must match the filtering criteria with SQL and Hibernate
- How to bind custom Hibernate parameter types to JPA queries
Bulk processing
- Bulk Update and Delete with JPA and Hibernate
- JPA Criteria API Bulk Update and Delete
- Bulk Update optimistic locking with JPA and Hibernate
Criteria Queries
- How to write JPA Criteria API queries using Codota
- JPA Criteria Metamodel Generation and Usage Guide
- How to query by entity type using JPA Criteria API
- Why you should always check the SQL statements generated by Criteria API
- The performance penalty of Class.forName when parsing JPQL and Criteria queries
- How does Hibernate handle JPA Criteria API literals
Stored Procedures
- The best way to call a stored procedure with JPA and Hibernate
- How to call Oracle stored procedures and functions with JPA and Hibernate
- How to call SQL Server stored procedures and functions with JPA and Hibernate
- How to call PostgreSQL functions (stored procedures) with JPA and Hibernate
- How to call MySQL stored procedures and functions with JPA and Hibernate
Caching
- A beginner’s guide to Cache synchronization strategies
- Things to consider before jumping to enterprise caching
- Caching best practices
- How does Hibernate store second-level cache entries
- How does Hibernate READ_ONLY CacheConcurrencyStrategy work
- How does Hibernate NONSTRICT_READ_WRITE CacheConcurrencyStrategy work
- How does Hibernate READ_WRITE CacheConcurrencyStrategy work
- How does Hibernate TRANSACTIONAL CacheConcurrencyStrategy work
- How does Hibernate Collection Cache work
- How does Hibernate Query Cache work
- How to use the Hibernate Query Cache for DTO projections
- How to avoid the Hibernate Query Cache N+1 issue
- How to cache non-existing entity fetch results with JPA and Hibernate
Statistics
Audit Logging
- A beginner’s guide to CDC (Change Data Capture)
- MySQL audit logging using triggers
- The best way to implement an audit log using Hibernate Envers
- How to extract change data events from MySQL to Kafka using Debezium
Multitenancy
- A beginner’s guide to database multitenancy
- Hibernate database catalog multitenancy
- Hibernate database schema multitenancy
Testing
- The minimal configuration for testing Hibernate
- Hibernate integration testing strategies
- How to run database integration tests 20 times faster
- How to run integration tests at warp-speed using Docker and tmpfs
- The best way to log JDBC statements
- The best way to detect database connection leaks
- How to install DB2 Express-C on Docker and set up the JDBC connection properties
- How to get started with CockroachDB and Hibernate
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