| Class | Description | 
|---|---|
| AllSelectionsHaveAttribute | Returns true if the given IDE Context contains a non
 empty Selection, and all of the Elements contained
 in the Selection have the expected attribute set. | 
| AlwaysEnabled | A RuleFunction implementation that always evaluates to true. | 
| AnySelectionHasAttribute | Returns true if the given IDE Context contains a non
 empty Selection, and at least one of the Elements contained
 in the Selection has the expected attribute set. | 
| ContextHasDependencyExplorableNode | Returns true if the given IDE Context contains a Node,
 and the Node matches the expected type. | 
| ContextHasElement | Returns true if the given IDE Context contains an Element,
 and the Element matches the expected type. | 
| ContextHasNode | Returns true if the given IDE Context contains a Node,
 and the Node matches the expected type. | 
| ContextHasProject | Returns true if the IDE Context contains a Project | 
| ContextHasView | Returns true if the given IDE Context contains a View,
 and the View matches the expected type. | 
| ContextHasWorkspace | Returns true if the given IDE Context contains a workspace. | 
| ContextObjectIsNamed | |
| ElementHasAttribute | Returns true if the given IDE Context contains an Element, and 
 that Element has the expected attribute set. | 
| ElementMayHaveChildren | |
| ExtensionEnabled | Determines whether or not an extension has been loaded, returns false if 
 it has not been. | 
| ExtensionInitialized | |
| MultipleSelection | Returns true if the IDE Context contains a Selection, and the Selection contains
 multiple Elements. | 
| NodeIsDirty | Returns true if the given IDE Context contains a Node,
 and the Node is currently dirty. | 
| PrefsHasValue | A rule that handles comparing a value in the IDE preferences HashStructure
 to a an expected value. | 
| ProductHasId | |
| ProjectContainsPath | |
| ProjectHasContent | This rule implementation returns true from  ProjectHasContent.evaluate(oracle.ide.extension.rules.RuleEvaluationContext, java.util.Map<java.lang.String, oracle.ide.extension.rules.RuleFunctionParameter>)if the
 given Context contains a Project and that Project has at least one
 file in the content set referenced by the rule parameter,
 . | 
| ProjectHasTechScope | |
| ProjectPropertiesHasKey | Returns true if the IDE Context contains a Project whose project
 properties contain the specified key. | 
| PropertyHasValue | Returns true if there is a system property with the supplied name
 whose value matches the expected value. | 
| SingleSelection | Returns true if the IDE Context contains a Selection, and the Selection contains
 a single Element. |