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sconfig/org.ekrich.config/org.ekrich.config.impl/ReplaceableMergeStack

ReplaceableMergeStack

org.ekrich.config.impl.ReplaceableMergeStack
trait ReplaceableMergeStack extends Container

Implemented by a merge stack (ConfigDelayedMerge, ConfigDelayedMergeObject) that replaces itself during substitution resolution in order to implement "look backwards only" semantics.

Attributes

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Supertypes
trait Container
trait ConfigValue
class Object
trait Matchable
class Any
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Known subtypes

Members list

Value members

Abstract methods

def makeReplacement(context: ResolveContext, skipping: Int): AbstractConfigValue

Make a replacement for this object skipping the given number of elements which are lower in merge priority.

Make a replacement for this object skipping the given number of elements which are lower in merge priority.

Attributes

Inherited methods

def atKey(key: String): Config

Places the value inside a Config at the given key. See also ConfigValue#atPath.

Places the value inside a Config at the given key. See also ConfigValue#atPath.

Value parameters

key

key to store this value at.

Attributes

Returns

a Config instance containing this value at the given key.

Inherited from:
ConfigValue
def atPath(path: String): Config

Places the value inside a Config at the given path. See also ConfigValue#atKey.

Places the value inside a Config at the given path. See also ConfigValue#atKey.

Value parameters

path

path to store this value at.

Attributes

Returns

a Config instance containing this value at the given path.

Inherited from:
ConfigValue
def hasDescendant(descendant: AbstractConfigValue): Boolean

Super-expensive full traversal to see if descendant is anywhere underneath this container.

Super-expensive full traversal to see if descendant is anywhere underneath this container.

Attributes

Inherited from:
Container
def origin: ConfigOrigin

The origin of the value (file, line number, etc.), for debugging and error messages.

The origin of the value (file, line number, etc.), for debugging and error messages.

Attributes

Returns

where the value came from

Inherited from:
ConfigValue
def render(options: ConfigRenderOptions): String

Renders the config value to a string, using the provided options.

Renders the config value to a string, using the provided options.

If the config value has not been resolved (see [Config.resolve()), it's possible that it can't be rendered as valid HOCON. In that case the rendering should still be useful for debugging but you might not be able to parse it. If the value has been resolved, it will always be parseable.

If the config value has been resolved and the options disable all HOCON-specific features (such as comments), the rendering will be valid JSON. If you enable HOCON-only features such as comments, the rendering will not be valid JSON.

Value parameters

options

the rendering options

Attributes

Returns

the rendered value

Inherited from:
ConfigValue
def render: String

Renders the config value as a HOCON string. This method is primarily intended for debugging, so it tries to add helpful comments and whitespace.

Renders the config value as a HOCON string. This method is primarily intended for debugging, so it tries to add helpful comments and whitespace.

If the config value has not been resolved (see Config.resolve()), it's possible that it can't be rendered as valid HOCON. In that case the rendering should still be useful for debugging but you might not be able to parse it. If the value has been resolved, it will always be parseable.

This method is equivalent to render(ConfigRenderOptions.defaults()).

Attributes

Returns

the rendered value

Inherited from:
ConfigValue
def replaceChild(child: AbstractConfigValue, replacement: AbstractConfigValue): AbstractConfigValue

Replace a child of this value. CAUTION if replacement is null, delete the child, which may also delete the parent, or make the parent into a non-container.

Replace a child of this value. CAUTION if replacement is null, delete the child, which may also delete the parent, or make the parent into a non-container.

Attributes

Inherited from:
Container
def unwrapped: AnyRef

Returns the value as a plain Java boxed value, that is, a String, Number, Boolean, Map[String, Object], List[Object], or null, matching the valueType of this ConfigValue. If the value is a ConfigObject or ConfigList, it is recursively unwrapped.

Returns the value as a plain Java boxed value, that is, a String, Number, Boolean, Map[String, Object], List[Object], or null, matching the valueType of this ConfigValue. If the value is a ConfigObject or ConfigList, it is recursively unwrapped.

Attributes

Returns

a plain Java value corresponding to this ConfigValue

Inherited from:
ConfigValue
def valueType: ConfigValueType

The ConfigValueType of the value; matches the JSON type schema.

The ConfigValueType of the value; matches the JSON type schema.

Attributes

Returns

value's type

Inherited from:
ConfigValue
override def withFallback(other: ConfigMergeable): ConfigValue

Returns a new value computed by merging this value with another, with keys in this value "winning" over the other one.

Returns a new value computed by merging this value with another, with keys in this value "winning" over the other one.

This associative operation may be used to combine configurations from multiple sources (such as multiple configuration files).

The semantics of merging are described in the spec for HOCON. Merging typically occurs when either the same object is created twice in the same file, or two config files are both loaded. For example:

 foo = { a: 42 }
 foo = { b: 43 }

Here, the two objects are merged as if you had written:

 foo = { a: 42, b: 43 }

Only ConfigObject and Config instances do anything in this method (they need to merge the fallback keys into themselves). All other values just return the original value, since they automatically override any fallback. This means that objects do not merge "across" non-objects; if you write object.withFallback(nonObject).withFallback(otherObject), then otherObjectwill simply be ignored. This is an intentional part of how merging works, because non-objects such as strings and integers replace (rather than merging with) any prior value:

 foo = { a: 42 }
 foo = 10

Here, the number 10 "wins" and the value of foo would be simply 10. Again, for details see the spec.

Value parameters

other

an object whose keys should be used as fallbacks, if the keys are not present in this one

Attributes

Returns

a new object (or the original one, if the fallback doesn't get used)

Definition Classes
Inherited from:
ConfigValue
def withOrigin(origin: ConfigOrigin): ConfigValue

Returns a ConfigValue based on this one, but with the given origin. This is useful when you are parsing a new format of file or setting comments for a single ConfigValue.

Returns a ConfigValue based on this one, but with the given origin. This is useful when you are parsing a new format of file or setting comments for a single ConfigValue.

Value parameters

origin

the origin set on the returned value

Attributes

Returns

the new ConfigValue with the given origin

Since

1.3.0

Inherited from:
ConfigValue
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