IAnnotatable

pentaho.lang.IAnnotatable

The IAnnotatable interface represents the class of objects whose instances can be freely augmented with annotations.

An annotation has a name and a value, of (almost) any kind. The undefined value denotes a missing annotation, so it cannot be usefully be the value of an annotation.

The pentaho.lang.IAnnotatable#property method allows getting or setting annotations on an annotated object.

By convention, the specification of an annotatable object uses a property named p to contain a plain object, a dictionary of annotations' names and values (see pentaho.lang.spec.IAnnotatable).

Source: doc-js/pentaho/lang/IAnnotatable.jsdoc, line 17

See also:  pentaho.lang.ISpecifiable , pentaho.lang.spec.IAnnotatable

// Obtain an annotatable object
 var foo = ...

 // Read foo's "bar" annotation
 var bar = foo.property("bar");

 // And create it, if it ain't there
 if(bar === undefined) {
 bar = "I have a 'bar' annotation!";
 foo.property("bar", bar);
 }

 console.log(bar);