Package io.helidon.config

Class OverrideSources

java.lang.Object

io.helidon.config.OverrideSources

public final class OverrideSources
extends Object

Class provides access to built-in OverrideSource implementations.

See Also:

OverrideSource

Method Summary

Modifier and Type	Method	Description
static AbstractOverrideSource.Builder<? extends AbstractOverrideSource.Builder<?,Path>,Path>	classpath(String resourceName)	Creates new instance of Classpath OverrideSource Builder to be used to bootstrap OverrideSource instance from specified resource.
static OverrideSource	create(Map<String,String> overrideValues)	Creates a new instance od OverrideSource from a map of wildcards to values.
static OverrideSource	empty()	An empty implementation of OverrideSource.
static AbstractOverrideSource.Builder<? extends AbstractOverrideSource.Builder<?,Path>,Path>	file(String file)	Creates new instance of the File OverrideSource Builder to be used to bootstrap an File OverrideSource instance.
static AbstractOverrideSource.Builder<? extends AbstractOverrideSource.Builder<?,URL>,URL>	url(URL url)	Creates new instance of the URL OverrideSource Builder to be used to bootstrap an URL OverrideSource instance.

Methods inherited from class java.lang.Object

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

Method Detail

empty

public static OverrideSource empty()

An empty implementation of OverrideSource.

A single instance is hold, so the return value is always the same.

Returns:

an empty implementation of OverrideSource

create

public static OverrideSource create(Map<String,String> overrideValues)

Creates a new instance od OverrideSource from a map of wildcards to values.

Note that Map does not guarantee the ordering of the items, but overrides are resolved in specified order. When more than one of the overrides keys might match, the first of them will be applied.

Parameters:

overrideValues - a map of wildcards to values

Returns:

a new instance of OverrideSource

classpath

public static AbstractOverrideSource.Builder<? extends AbstractOverrideSource.Builder<?,Path>,Path> classpath(String resourceName)

Creates new instance of Classpath OverrideSource Builder to be used to bootstrap OverrideSource instance from specified resource.

The name of a resource is a '/'-separated full path name that identifies the resource. If the resource name has a leading slash then it is dropped before lookup.

Parameters:

resourceName - a name of the resource

Returns:

new Builder instance

file

public static AbstractOverrideSource.Builder<? extends AbstractOverrideSource.Builder<?,Path>,Path> file(String file)

Creates new instance of the File OverrideSource Builder to be used to bootstrap an File OverrideSource instance.

Parameters:

file - a file with an override value map

Returns:

an instance of builder

url

public static AbstractOverrideSource.Builder<? extends AbstractOverrideSource.Builder<?,URL>,URL> url(URL url)

Creates new instance of the URL OverrideSource Builder to be used to bootstrap an URL OverrideSource instance.

Parameters:

url - an URL with an override value map

Returns:

an instance of builder