Package org.hibernate.search.engine.cfg.impl

Class OverriddenConfigurationPropertySource

java.lang.Object

org.hibernate.search.engine.cfg.impl.OverriddenConfigurationPropertySource

All Implemented Interfaces:

ConfigurationPropertySource

public class OverriddenConfigurationPropertySource
extends Object
implements ConfigurationPropertySource

This class is very similar to FallbackConfigurationPropertySource. We could actually use FallbackConfigurationPropertySource wherever we use this class, simply by inverting the constructor parameters, if it wasn't for one detail: the implementation of resolve(String) would not work as expected, returning the key resolved using the wrong source.

Constructor Summary

Constructors

Constructor	Description
OverriddenConfigurationPropertySource(ConfigurationPropertySource main, ConfigurationPropertySource override)

Method Summary

Modifier and Type	Method	Description
Optional<?>	get(String key)
Optional<String>	resolve(String key)
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hibernate.search.engine.cfg.ConfigurationPropertySource

withFallback, withMask, withOverride, withPrefix

Constructor Details

OverriddenConfigurationPropertySource

public OverriddenConfigurationPropertySource(ConfigurationPropertySource main,
 ConfigurationPropertySource override)

Method Details

get

public Optional<?> get(String key)

Specified by:

get in interface ConfigurationPropertySource

Parameters:

key - The key of the property to get.

Returns:

An optional containing the value of the requested property, or Optional.empty() if the property is missing.

resolve

public Optional<String> resolve(String key)

Specified by:

resolve in interface ConfigurationPropertySource

Parameters:

key - The key of the property to get.

Returns:

An optional containing the key as registered in the underlying configuration source, with any transformation (prefixes, masks) reverted. Whether the optional is empty is not related to the key having a value in the underlying configuration source; instead, the optional is empty only if the key cannot possibly be registered in the underlying configuration source, e.g. if the key is missing a mandatory prefix.

toString

public String toString()

Overrides:

toString in class Object