Package io.helidon.config.spi

Class AbstractConfigSource.Builder<B extends AbstractConfigSource.Builder<B,T>,T>

java.lang.Object

io.helidon.config.spi.AbstractSource.Builder<B,T,ConfigSource>

io.helidon.config.spi.AbstractConfigSource.Builder<B,T>

Type Parameters:

B - type of Builder implementation

T - type of key source attributes (target) used to construct polling strategy from

All Implemented Interfaces:

java.util.function.Supplier<ConfigSource>

Direct Known Subclasses:

AbstractParsableConfigSource.Builder

Enclosing class:

AbstractConfigSource<S>

public abstract static class AbstractConfigSource.Builder<B extends AbstractConfigSource.Builder<B,T>,T>
extends AbstractSource.Builder<B,T,ConfigSource>
implements java.util.function.Supplier<ConfigSource>

A common ConfigSource builder ready to be extended by builder implementation related to ConfigSource extensions.

It allows to configure following properties:

• mediaTypeMapping - a mapping of a key to a media type
• parserMapping - a mapping of a key to a ConfigParser

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Builder(java.lang.Class<T> targetType)	Initialize builder.

Method Summary

Modifier and Type	Method	Description
ConfigSource	get()
protected java.util.function.Function<Config.Key,java.lang.String>	getMediaTypeMapping()
protected java.util.function.Function<Config.Key,ConfigParser>	getParserMapping()
protected B	init(Config metaConfig)	Initialize builder from specified configuration properties.
B	mediaTypeMapping(java.util.function.Function<Config.Key,java.lang.String> mediaTypeMapping)	Sets a function mapping key to media type.
B	parserMapping(java.util.function.Function<Config.Key,ConfigParser> parserMapping)	Sets a function mapping key to a parser.

Methods inherited from class io.helidon.config.spi.AbstractSource.Builder

build, changesExecutor, changesMaxBuffer, getChangesExecutor, getChangesMaxBuffer, getPollingStrategy, getRetryPolicy, getTarget, isMandatory, optional, pollingStrategy, pollingStrategy, retryPolicy

Methods inherited from class java.lang.Object

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

Constructor Detail

Builder

protected Builder(java.lang.Class<T> targetType)

Initialize builder.

Parameters:

targetType - target type

Method Detail

get

public ConfigSource get()

Specified by:

get in interface java.util.function.Supplier<B extends AbstractConfigSource.Builder<B,T>>

init

protected B init(Config metaConfig)

Initialize builder from specified configuration properties.

Supported configuration properties:

• optional - type boolean, see AbstractSource.Builder.optional()
• polling-strategy - see PollingStrategy for details about configuration format, see AbstractSource.Builder.pollingStrategy(Supplier) or AbstractSource.Builder.pollingStrategy(Function)

• media-type-mapping - type Map - key to media type, see mediaTypeMapping(Function)

Overrides:

init in class AbstractSource.Builder<B extends AbstractConfigSource.Builder<B,T>,T,ConfigSource>

Parameters:

metaConfig - configuration properties used to initialize a builder instance.

Returns:

modified builder instance

mediaTypeMapping

public B mediaTypeMapping(java.util.function.Function<Config.Key,java.lang.String> mediaTypeMapping)

Sets a function mapping key to media type.

Parameters:

mediaTypeMapping - a mapping function

Returns:

a modified builder

parserMapping

public B parserMapping(java.util.function.Function<Config.Key,ConfigParser> parserMapping)

Sets a function mapping key to a parser.

Parameters:

parserMapping - a mapping function

Returns:

a modified builder

getMediaTypeMapping

protected java.util.function.Function<Config.Key,java.lang.String> getMediaTypeMapping()

getParserMapping

protected java.util.function.Function<Config.Key,ConfigParser> getParserMapping()