org.springframework.boot.jdbc

Class DataSourceBuilder<T extends javax.sql.DataSource>

java.lang.Object

org.springframework.boot.jdbc.DataSourceBuilder<T>

Type Parameters:

T - the DataSource type being built

public final class DataSourceBuilder<T extends javax.sql.DataSource>
extends java.lang.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)

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

See Also:

create(), create(ClassLoader), derivedFrom(DataSource)

Method Summary

Modifier and Type	Method and Description
T	build() Return a newly built DataSource instance.
static DataSourceBuilder<?>	create() Create a new DataSourceBuilder instance.
static DataSourceBuilder<?>	create(java.lang.ClassLoader classLoader) Create a new DataSourceBuilder instance.
static DataSourceBuilder<?>	derivedFrom(javax.sql.DataSource dataSource) Create a new DataSourceBuilder instance derived from the specified data source.
DataSourceBuilder<T>	driverClassName(java.lang.String driverClassName) Set the driver class name that should be used when building the datasource.
static java.lang.Class<? extends javax.sql.DataSource>	findType(java.lang.ClassLoader classLoader) Find the DataSource type preferred for the given classloader.
DataSourceBuilder<T>	password(java.lang.String password) Set the password that should be used when building the datasource.
<D extends javax.sql.DataSource> DataSourceBuilder<D>	type(java.lang.Class<D> type) Set the DataSource type that should be built.
DataSourceBuilder<T>	url(java.lang.String url) Set the URL that should be used when building the datasource.
DataSourceBuilder<T>	username(java.lang.String username) Set the username that should be used when building the datasource.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

type

public <D extends javax.sql.DataSource> DataSourceBuilder<D> type(java.lang.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(java.lang.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(java.lang.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(java.lang.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(java.lang.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(java.lang.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(javax.sql.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 java.lang.Class<? extends javax.sql.DataSource> findType(java.lang.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