Top Description Methods
com.typesafe.config

public Interface ConfigResolver

Implement this interface and provide an instance to ConfigResolveOptions.appendResolver() to provide custom behavior when unresolved substitutions are encountered during resolution.
Since
1.3.2

Method Summary

Modifier and TypeMethod and Description
public ConfigValue

Returns:

the value to use as a substitution or null
lookup(String
the unresolved path
path)

Returns the value to substitute for the given unresolved path.

public ConfigResolver

Returns:

a new resolver
withFallback(ConfigResolver
the previous includer for chaining
fallback)

Returns a new resolver that falls back to the given resolver if this one doesn't provide a substitution itself.

Method Detail

lookupback to summary
public ConfigValue lookup(String path)

Returns the value to substitute for the given unresolved path. To get the components of the path use ConfigUtil#splitPath(String). If a non-null value is returned that value will be substituted, otherwise resolution will continue to consider the substitution as still unresolved.

Parameters
path:String

the unresolved path

Returns:ConfigValue

the value to use as a substitution or null

withFallbackback to summary
public ConfigResolver withFallback(ConfigResolver fallback)

Returns a new resolver that falls back to the given resolver if this one doesn't provide a substitution itself. It's important to handle the case where you already have the fallback with a "return this", i.e. this method should not create a new object if the fallback is the same one you already have. The same fallback may be added repeatedly.

Parameters
fallback:ConfigResolver

the previous includer for chaining

Returns:ConfigResolver

a new resolver