30.3. Utility components

The following components provide various functions that are useful across a broad range of applications.
org.jboss.seam.core.events
An API for raising events that can be observed via @Observer methods, or method bindings in components.xml.
  • raiseEvent(String type) — raises an event of a particular type and distributes it to all observers.
  • raiseAsynchronousEvent(String type) — raises an event to be processed asynchronously by the EJB3 timer service.
  • raiseTimedEvent(String type, ....) — schedules an event to be processed asynchronously by the EJB3 timer service.
  • addListener(String type, String methodBinding) — adds an observer for a particular event type.
org.jboss.seam.core.interpolator
An API for interpolating the values of JSF EL expressions in Strings.
  • interpolate(String template) — scans the template for JSF EL expressions of the form #{...} and replaces them with their evaluated values.
org.jboss.seam.core.expressions
An API for creating value and method bindings.
  • createValueBinding(String expression) — creates a value binding object.
  • createMethodBinding(String expression) — creates a method binding object.
org.jboss.seam.core.pojoCache
Manager component for a JBoss Cache PojoCache instance.
  • pojoCache.cfgResourceName — the name of the configuration file. Defaults to treecache.xml.
All of these components are always installed.