Chapter 12. Configuration Properties

SwitchYard allows you to replace any attribute or element value in the switchyard.xml file with a property from the runtime environment. The syntax for a replaced token is:

${varname}

Here, varname is the property name. The configuration layer in SwitchYard is configured with instances of PropertyResolver, which are used to resolve the value of a property based on its name.

Property values are resolved from the following locations:

The priority in resolving a property is from top to bottom. So a property defined as a System property always takes precedence over a property defined at domain or composite, and a property at domain level always takes precedence over a property defined at component level.