Vlad Mihalcea

High-Performance Java Persistence Newsletter, Issue 64

Are you struggling with performance issues in your Spring, Jakarta EE, or Java EE application?

What if there were a tool that could automatically detect what caused performance issues in your JPA and Hibernate data access layer?

Wouldn’t it be awesome to have such a tool to watch your application and prevent performance issues during development, long before they affect production systems?

Well, Hypersistence Optimizer is that tool! And it works with Spring Boot, Spring Framework, Jakarta EE, Java EE, Quarkus, Micronaut, or Play Framework.

So, rather than fixing performance issues in your production system on a Saturday night, you are better off using Hypersistence Optimizer to help you prevent those issues so that you can spend your time on the things that you love!

Introduction

Welcome to a new issue of the High-Performance Java Persistence Newsletter in which we share articles, videos, workshops, and StackOverflow answers that are very relevant to any developer who interacts with a database system using Java.

Read More

How to map Java Enum to custom values with JPA and Hibernate

Are you struggling with performance issues in your Spring, Jakarta EE, or Java EE application?

What if there were a tool that could automatically detect what caused performance issues in your JPA and Hibernate data access layer?

Wouldn’t it be awesome to have such a tool to watch your application and prevent performance issues during development, long before they affect production systems?

Well, Hypersistence Optimizer is that tool! And it works with Spring Boot, Spring Framework, Jakarta EE, Java EE, Quarkus, Micronaut, or Play Framework.

So, rather than fixing performance issues in your production system on a Saturday night, you are better off using Hypersistence Optimizer to help you prevent those issues so that you can spend your time on the things that you love!

Introduction

In this article, we are going to see how we can map Java Enum to custom values when using JPA and Hibernate.

While Hibernate provides several options to save Enum values, having the option to customize this mechanism is even better, as it will allow you to better deal with legacy applications or use cases that require you to reorder the Java Enum values.

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How does the Hibernate JAVA_TIME_USE_DIRECT_JDBC setting work

Are you struggling with performance issues in your Spring, Jakarta EE, or Java EE application?

What if there were a tool that could automatically detect what caused performance issues in your JPA and Hibernate data access layer?

Wouldn’t it be awesome to have such a tool to watch your application and prevent performance issues during development, long before they affect production systems?

Well, Hypersistence Optimizer is that tool! And it works with Spring Boot, Spring Framework, Jakarta EE, Java EE, Quarkus, Micronaut, or Play Framework.

So, rather than fixing performance issues in your production system on a Saturday night, you are better off using Hypersistence Optimizer to help you prevent those issues so that you can spend your time on the things that you love!

Introduction

In this article, we are going to see how the Hibernate JAVA_TIME_USE_DIRECT_JDBC setting works and what JDBC Driver supports this feature.

This setting can be set programmatically, as illustrated by the following Spring Java-based configuration:

@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
    LocalContainerEntityManagerFactoryBean entityManagerFactoryBean = 
        new LocalContainerEntityManagerFactoryBean();
    entityManagerFactoryBean.setDataSource(dataSource());
⠀
    ...
⠀
    entityManagerFactoryBean.setJpaVendorAdapter(
        new HibernateJpaVendorAdapter()
    );
    entityManagerFactoryBean.setJpaProperties(additionalProperties());
    return entityManagerFactoryBean;
}

protected Properties additionalProperties() {
    Properties properties = new Properties();
    properties.setProperty(
        AvailableSettings.JAVA_TIME_USE_DIRECT_JDBC, 
        Boolean.TRUE.toString()
    );
    return properties;
}

Or you can set it declaratively in the Spring Boot application.properties configuration file like this:

spring.jpa.properties.hibernate.type.java_time_use_direct_jdbc=true

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Hibernate WITH RECURSIVE query

Are you struggling with performance issues in your Spring, Jakarta EE, or Java EE application?

What if there were a tool that could automatically detect what caused performance issues in your JPA and Hibernate data access layer?

Wouldn’t it be awesome to have such a tool to watch your application and prevent performance issues during development, long before they affect production systems?

Well, Hypersistence Optimizer is that tool! And it works with Spring Boot, Spring Framework, Jakarta EE, Java EE, Quarkus, Micronaut, or Play Framework.

So, rather than fixing performance issues in your production system on a Saturday night, you are better off using Hypersistence Optimizer to help you prevent those issues so that you can spend your time on the things that you love!

Introduction

In this article, we are going to see how the Hibernate WITH RECURSIVE query works and how we can use it to fetch hierarchical data structures.

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High-Performance Java Persistence Newsletter, Issue 63

Are you struggling with performance issues in your Spring, Jakarta EE, or Java EE application?

What if there were a tool that could automatically detect what caused performance issues in your JPA and Hibernate data access layer?

Wouldn’t it be awesome to have such a tool to watch your application and prevent performance issues during development, long before they affect production systems?

Well, Hypersistence Optimizer is that tool! And it works with Spring Boot, Spring Framework, Jakarta EE, Java EE, Quarkus, Micronaut, or Play Framework.

So, rather than fixing performance issues in your production system on a Saturday night, you are better off using Hypersistence Optimizer to help you prevent those issues so that you can spend your time on the things that you love!

Introduction

Welcome to a new issue of the High-Performance Java Persistence Newsletter in which we share articles, videos, workshops, and StackOverflow answers that are very relevant to any developer who interacts with a database system using Java.

Read More

Hibernate ON CONFLICT DO clause

Are you struggling with performance issues in your Spring, Jakarta EE, or Java EE application?

What if there were a tool that could automatically detect what caused performance issues in your JPA and Hibernate data access layer?

Wouldn’t it be awesome to have such a tool to watch your application and prevent performance issues during development, long before they affect production systems?

Well, Hypersistence Optimizer is that tool! And it works with Spring Boot, Spring Framework, Jakarta EE, Java EE, Quarkus, Micronaut, or Play Framework.

So, rather than fixing performance issues in your production system on a Saturday night, you are better off using Hypersistence Optimizer to help you prevent those issues so that you can spend your time on the things that you love!

Introduction

In this article, we are going to see how the Hibernate ON CONFLICT DO clause works, and how we can use it to execute an SQL UPSERT statement in a portable way.

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PostgreSQL COPY result set to file

Are you struggling with performance issues in your Spring, Jakarta EE, or Java EE application?

What if there were a tool that could automatically detect what caused performance issues in your JPA and Hibernate data access layer?

Wouldn’t it be awesome to have such a tool to watch your application and prevent performance issues during development, long before they affect production systems?

Well, Hypersistence Optimizer is that tool! And it works with Spring Boot, Spring Framework, Jakarta EE, Java EE, Quarkus, Micronaut, or Play Framework.

So, rather than fixing performance issues in your production system on a Saturday night, you are better off using Hypersistence Optimizer to help you prevent those issues so that you can spend your time on the things that you love!

Introduction

In this article, we are going to see how we can use the PostgreSQL COPY command to export a large result set to an external file.

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PostgreSQL plan_cache_mode

Are you struggling with performance issues in your Spring, Jakarta EE, or Java EE application?

What if there were a tool that could automatically detect what caused performance issues in your JPA and Hibernate data access layer?

Wouldn’t it be awesome to have such a tool to watch your application and prevent performance issues during development, long before they affect production systems?

Well, Hypersistence Optimizer is that tool! And it works with Spring Boot, Spring Framework, Jakarta EE, Java EE, Quarkus, Micronaut, or Play Framework.

So, rather than fixing performance issues in your production system on a Saturday night, you are better off using Hypersistence Optimizer to help you prevent those issues so that you can spend your time on the things that you love!

Introduction

In this article, we are going to analyze the PostgreSQL plan_cache_mode setting and see when it’s useful to override a given generic plan using the the force_custom_plan strategy.

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Overriding FetchType.EAGER with fetchgraph

Are you struggling with performance issues in your Spring, Jakarta EE, or Java EE application?

What if there were a tool that could automatically detect what caused performance issues in your JPA and Hibernate data access layer?

Wouldn’t it be awesome to have such a tool to watch your application and prevent performance issues during development, long before they affect production systems?

Well, Hypersistence Optimizer is that tool! And it works with Spring Boot, Spring Framework, Jakarta EE, Java EE, Quarkus, Micronaut, or Play Framework.

So, rather than fixing performance issues in your production system on a Saturday night, you are better off using Hypersistence Optimizer to help you prevent those issues so that you can spend your time on the things that you love!

Introduction

In this article, we are going to see how you can override the FetchType.EAGER strategy using the fetchgraph query hint.

While this feature has been available in the JPA specification since version 2.1, Hibernate has only supported this feature since version 5.5.

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High-Performance Java Persistence Newsletter, Issue 62

Are you struggling with performance issues in your Spring, Jakarta EE, or Java EE application?

What if there were a tool that could automatically detect what caused performance issues in your JPA and Hibernate data access layer?

Wouldn’t it be awesome to have such a tool to watch your application and prevent performance issues during development, long before they affect production systems?

Well, Hypersistence Optimizer is that tool! And it works with Spring Boot, Spring Framework, Jakarta EE, Java EE, Quarkus, Micronaut, or Play Framework.

So, rather than fixing performance issues in your production system on a Saturday night, you are better off using Hypersistence Optimizer to help you prevent those issues so that you can spend your time on the things that you love!

Introduction

Welcome to a new issue of the High-Performance Java Persistence Newsletter in which we share articles, videos, workshops, and StackOverflow answers that are very relevant to any developer who interacts with a database system using Java.

Read More