Answer:
DataSource is a factory to obtain database connections. There're several ways to create DataSource beans in a Spring application:
- using JNDI lookup
- using JDBC DataSource vendors
- using test-purpose DataSource implementations provided by Spring Framework (e.g. DriverManagerDataSource, SingleConnectionDataSource, embedded Datasource created via EmbeddedDatabaseBuilder class).
Preferable development DataSource is a pooled-Datasource obtained by JNDI lookup. For testing purposes, embedded Datasource EmbeddedDatabase is sometimes sufficient.
Examples of mentioned terms:
SampleDataSourceConfiguration - basic example for configuring production/development Datasource s.(in the attachment below)๐๐๐
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Configuring a DataSource๐ https://www.baeldung.com/spring-boot-configure-data-source-programmatic