Package com.mchange.v2.cfg

Class MultiPropertiesConfig

java.lang.Object
com.mchange.v2.cfg.MultiPropertiesConfig
All Implemented Interfaces:
PropertiesConfig
Direct Known Subclasses:
HoconMultiPropertiesConfig
public abstract class MultiPropertiesConfig extends Object implements PropertiesConfig
MultiPropertiesConfig allows applications to accept configuration data from a more than one property file (each of which is to be loaded from a unique path using this class' ClassLoader's resource-loading mechanism), and permits access to property data via the resource path from which the properties were loaded, via the prefix of the property (where hierarchical property names are presumed to be '.'-separated), and simply by key. In the by-key and by-prefix indices, when two definitions conflict, the key value pairing specified in the MOST RECENT properties file shadows earlier definitions, and files are loaded in the order of the list of resource paths provided a constructor. The resource path "/" is a special case that always refers to System properties. No actual resource will be loaded. If the mchange-hocon-bridge jar file is available, resource paths specified as "hocon:/path/to/resource" will be parsed as HOCON, whenever values can be interpreted as Strings. The class manages a special instance called "vmConfig" which is accessable via a static method. It's resource path is list specified by a text-file, itself a ClassLoader managed resource, which may be located at /com/mchange/v2/cfg/vmConfigResourcePaths.txt or /mchange-config-resource-paths.txt. This file should be one resource path per line, with blank lines ignored and lines beginning with '#' treated as comments. If no text file of resource paths are available, the following resources are checked: "/mchange-commons.properties", "hocon:/reference,/application,/", "/" See HoconPropertiesConfigSource for information on HOCON identifiers.