Package org.springframework.boot.jdbc

Class DataSourceBuilder<T extends DataSource>

java.lang.Object
org.springframework.boot.jdbc.DataSourceBuilder<T>
Type Parameters:
T - the DataSource type being built
public final class DataSourceBuilder<T extends DataSource> extends Object
Convenience class for building a DataSource. Provides a limited subset of the properties supported by a typical DataSource as well as detection logic to pick the most suitable pooling DataSource implementation.

The following pooling DataSource implementations are supported by this builder. When no type has been explicitly set, the first available pool implementation will be picked:

  • Hikari (com.zaxxer.hikari.HikariDataSource)
  • Tomcat JDBC Pool (org.apache.tomcat.jdbc.pool.DataSource)
  • Apache DBCP2 (org.apache.commons.dbcp2.BasicDataSource)
  • Oracle UCP (oracle.ucp.jdbc.PoolDataSourceImpl)
  • C3P0 (com.mchange.v2.c3p0.ComboPooledDataSource)

The following non-pooling DataSource implementations can be used when explicitly set as a type:

  • Spring's SimpleDriverDataSource (org.springframework.jdbc.datasource.SimpleDriverDataSource)
  • Oracle (oracle.jdbc.datasource.OracleDataSource)
  • H2 (org.h2.jdbcx.JdbcDataSource)
  • Postgres (org.postgresql.ds.PGSimpleDataSource)
  • Any DataSource implementation with appropriately named methods

This class is commonly used in an @Bean method and often combined with @ConfigurationProperties.

Since:
2.0.0
Author:
Dave Syer, Madhura Bhave, Fabio Grassi, Phillip Webb
See Also:

  • Method Details

    • type

      public <D extends DataSource> DataSourceBuilder<D> type(Class<D> type)
      Set the DataSource type that should be built.
      Type Parameters:
      D - the datasource type
      Parameters:
      type - the datasource type
      Returns:
      this builder

    • url

      public DataSourceBuilder<T> url(String url)
      Set the URL that should be used when building the datasource.
      Parameters:
      url - the JDBC url
      Returns:
      this builder

    • driverClassName

      public DataSourceBuilder<T> driverClassName(String driverClassName)
      Set the driver class name that should be used when building the datasource.
      Parameters:
      driverClassName - the driver class name
      Returns:
      this builder

    • username

      public DataSourceBuilder<T> username(String username)
      Set the username that should be used when building the datasource.
      Parameters:
      username - the user name
      Returns:
      this builder

    • password

      public DataSourceBuilder<T> password(String password)
      Set the password that should be used when building the datasource.
      Parameters:
      password - the password
      Returns:
      this builder

    • build

      public T build()
      Return a newly built DataSource instance.
      Returns:
      the built datasource

    • create

      public static DataSourceBuilder<?> create()
      Create a new DataSourceBuilder instance.
      Returns:
      a new datasource builder instance

    • create

      public static DataSourceBuilder<?> create(ClassLoader classLoader)
      Create a new DataSourceBuilder instance.
      Parameters:
      classLoader - the classloader used to discover preferred settings
      Returns:
      a new DataSource builder instance

    • derivedFrom

      public static DataSourceBuilder<?> derivedFrom(DataSource dataSource)
      Create a new DataSourceBuilder instance derived from the specified data source. The returned builder can be used to build the same type of DataSource with username, password, url and driverClassName properties copied from the original when not specifically set.
      Parameters:
      dataSource - the source DataSource
      Returns:
      a new DataSource builder
      Since:
      2.5.0

    • findType

      public static Class<? extends DataSource> findType(ClassLoader classLoader)
      Find the DataSource type preferred for the given classloader.
      Parameters:
      classLoader - the classloader used to discover preferred settings
      Returns:
      the preferred DataSource type