dalesbred's Introduction

Dalesbred

Dalesbred is a breed of domestic sheep originating in the United Kingdom.

It is also a library that strives to make database access from Java nicer. Dalesbred assumes that SQL is a great way to access database, but that JDBC as an API causes pain. Therefore it wraps JDBC with a set of helpers while still providing access to low-level functionality.

Visit the Dalesbred website for details.

Quick-start

Add dependency to your pom.xml:

<dependency>
    <groupId>org.dalesbred</groupId>
    <artifactId>dalesbred</artifactId>
    <version>1.2.3</version>
</dependency>

Create a class with public fields, normal JavaBean accessors or a constructor matching your SQL-query. For example:

public class Department {
    public int id;
    public String name;
}

Create a database connection:

Database db = Database.forUrlAndCredentials("jdbc:example-url", "login", "password");

Fetch matching rows from table:

List<Department> departments = db.findAll(Department.class,
        "select id, name from department where name like ?", "%foo");

Insert a new row:

db.update("insert into user (id, name) values (?, ?)", 42, "Example User");

Improve your experience with Kotlin and bundled extension methods:

val departments = db.findAll<Department>("""
    select id, name 
      from department
      where name like ?""", 
    "%foo")

Documentation

IDEA-integration

If you're using IntelliJ IDEA, check out Dalesbred IDEA Plugin, which provides inspections for common errors (e.g. mismatch between query parameters and query).

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