DataSourceBuilder (com.holon-platform.jdbc:holon-jdbc-root 5.2.0-alpha2 API)

```
public interface DataSourceBuilder
```
Builder to create and configure DataSource instances using a DataSourceConfigProperties configuration properties source.
The DataSource instances are created and configured using a suitable DataSourceFactory, bound to a symbolic type name which can be specified using the DataSourceConfigProperties.TYPE property. The DataSourceFactory which corresponds to a DataSource type name must be registered to build the DataSource using the registerFactory(DataSourceFactory) method. Default factories can be registered using default Java ServiceLoader extension, through a com.holonplatform.jdbc.DataSourceFactory file under the META-INF/services folder.

The builder supports DataSourcePostProcessor registration to initialiaze and/or configure the created DataSource instances. Default post processors can be registered using default Java ServiceLoader extension, through a com.holonplatform.jdbc.DataSourcePostProcessor file under the META-INF/services folder.

Since:

5.0.0

See Also:

DataSourceConfigProperties

Nested Class Summary

Nested Classes
Modifier and Type Interface and Description

static interface DataSourceBuilder.Builder
Direct DataSource instance builder.

Nested Classes
Modifier and Type	Interface and Description
`static interface`	`DataSourceBuilder.Builder` Direct `DataSource` instance builder.

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`DEFAULT_PRIORITY` Default `DataSourceBuilder` priority if not specified using `Priority` annotation.
`static String`	`TYPE_BASIC` Default DataSource type: BasicDataSource
`static String`	`TYPE_DBCP` Default DataSource type: DBCP 2 DataSource
`static String`	`TYPE_HIKARICP` Default DataSource type: HikariCP DataSource
`static String`	`TYPE_JNDI` Default DataSource type: JNDI DataSource
`static String`	`TYPE_TOMCAT` Default DataSource type: Tomcat DataSource

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method and Description
`DataSource`	`build(DataSourceConfigProperties configurationProperties)` Build a DataSource instance using given configuration properties.
`static DataSource`	`build(String propertiesFileName)` Convenience method to directly build a `DataSource` using given DataSource configuration properties file name.
`static DataSource`	`build(String propertiesFileName, ClassLoader classLoader)` Convenience method to directly build a `DataSource` using given DataSource configuration properties file name.
`static DataSourceBuilder.Builder`	`builder()` Get a `DataSourceBuilder.Builder` to set configuration properties and directly obtain a `DataSource` instance.
`static DataSourceBuilder`	`create()` Create a new `DataSourceBuilder` using the default ClassLoader.
`static DataSourceBuilder`	`create(ClassLoader classLoader)` Create a new `DataSourceBuilder`.
`void`	`registerFactory(DataSourceFactory factory)` Register a `DataSourceFactory` to be used to build `DataSource` instances of the type returned by the `DataSourceFactory.getDataSourceType()` method.
`void`	`registerPostProcessor(DataSourcePostProcessor postProcessor)` Register a new `DataSourcePostProcessor` to initialiaze and/or configure the created `DataSource` instances.

- Field Detail
  - TYPE_BASIC
```
static final String TYPE_BASIC
```
    Default DataSource type: BasicDataSource
    
    See Also:
    
    DataSourceConfigProperties.TYPE, Constant Field Values
  - TYPE_HIKARICP
```
static final String TYPE_HIKARICP
```
    Default DataSource type: HikariCP DataSource
    
    See Also:
    
    DataSourceConfigProperties.TYPE, Constant Field Values
  - TYPE_DBCP
```
static final String TYPE_DBCP
```
    Default DataSource type: DBCP 2 DataSource
    
    See Also:
    
    DataSourceConfigProperties.TYPE, Constant Field Values
  - TYPE_TOMCAT
```
static final String TYPE_TOMCAT
```
    Default DataSource type: Tomcat DataSource
    
    See Also:
    
    DataSourceConfigProperties.TYPE, Constant Field Values
  - TYPE_JNDI
```
static final String TYPE_JNDI
```
    Default DataSource type: JNDI DataSource
    
    See Also:
    
    DataSourceConfigProperties.TYPE, Constant Field Values
  - DEFAULT_PRIORITY
```
static final int DEFAULT_PRIORITY
```
    Default DataSourceBuilder priority if not specified using Priority annotation.
    
    See Also:
    
    Constant Field Values
- Method Detail
  - registerFactory
```
void registerFactory(DataSourceFactory factory)
```
    Register a DataSourceFactory to be used to build DataSource instances of the type returned by the DataSourceFactory.getDataSourceType() method.
    Any previous binding with given type will be replaced by the given DataSourceFactory.
    
    Parameters:
    
    factory - the factory to register (not null)
    
    See Also:
    
    DataSourceConfigProperties.TYPE
  - registerPostProcessor
```
void registerPostProcessor(DataSourcePostProcessor postProcessor)
```
    Register a new DataSourcePostProcessor to initialiaze and/or configure the created DataSource instances.
    
    Parameters:
    
    postProcessor - Post processor to register (not null)
  - build
```
DataSource build(DataSourceConfigProperties configurationProperties)
          throws com.holonplatform.core.config.ConfigPropertySet.ConfigurationException
```
    Build a DataSource instance using given configuration properties.
    
    Parameters:
    
    configurationProperties - Configuration properties
    
    Returns:
    
    DataSource instance configured according to given configuration properties
    
    Throws:
    
    com.holonplatform.core.config.ConfigPropertySet.ConfigurationException - Error configuring DataSource using given configuration properties
  - create
```
static DataSourceBuilder create()
```
    Create a new DataSourceBuilder using the default ClassLoader. The builder will be initialized with default DataSourceFactorys and DataSourcePostProcessors loaded using default Java ServiceLoader extensions.
    
    Returns:
    
    A new DataSourceBuilder instance
  - create
```
static DataSourceBuilder create(ClassLoader classLoader)
```
    Create a new DataSourceBuilder. The builder will be initialized with default DataSourceFactorys and DataSourcePostProcessors loaded using default Java ServiceLoader extensions.
    
    Parameters:
    
    classLoader - The ClassLoader to use to initialize the builder (not null)
    
    Returns:
    
    A new DataSourceBuilder instance
  - build
```
static DataSource build(String propertiesFileName)
```
    Convenience method to directly build a DataSource using given DataSource configuration properties file name.
    See DataSourceConfigProperties for available DataSource configuration property names and meaning.
    
    Parameters:
    
    propertiesFileName - DataSource configuration properties file name (not null)
    
    Returns:
    
    A new DataSource instance built according to provided configuration properties
    
    Throws:
    
    com.holonplatform.core.config.ConfigPropertySet.ConfigurationException - Error configuring a DataSource using given configuration properties
  - build
```
static DataSource build(String propertiesFileName,
                        ClassLoader classLoader)
```
    Convenience method to directly build a DataSource using given DataSource configuration properties file name.
    See DataSourceConfigProperties for available DataSource configuration property names and meaning.
    
    Parameters:
    
    propertiesFileName - DataSource configuration properties file name (not null)
    
    classLoader - The ClassLoader to use to load the file
    
    Returns:
    
    A new DataSource instance built according to provided configuration properties
    
    Throws:
    
    com.holonplatform.core.config.ConfigPropertySet.ConfigurationException - Error configuring a DataSource using given configuration properties
  - builder
```
static DataSourceBuilder.Builder builder()
```
    Get a DataSourceBuilder.Builder to set configuration properties and directly obtain a DataSource instance.
    
    Returns:
    
    A new DataSource builder

Interface DataSourceBuilder

Nested Class Summary

Field Summary

Method Summary

Field Detail

TYPE_BASIC

TYPE_HIKARICP

TYPE_DBCP

TYPE_TOMCAT

TYPE_JNDI

DEFAULT_PRIORITY

Method Detail

registerFactory

registerPostProcessor

build

create

create

build

build

builder