returns a multi-map of functions in this schema by name . it is a multi-map because functions are overloaded ; there may be more than one function in a schema with a given name as long as they have different parameter lists . the implementations of #getfunctionnames and schema #getfunctions string depend on this map.the default implementation of this method returns the empty multi-map . override this method to change their behavior . concode_field_sep PlaceHolder placeHolder concode_field_sep boolean contentsHaveChangedSince concode_elem_sep Expression getExpression concode_elem_sep boolean isMutable concode_elem_sep Table getTable concode_elem_sep Set<String> getFunctionNames concode_elem_sep Schema getSubSchema concode_elem_sep Map<String,Schema> getSubSchemaMap concode_elem_sep Collection<Function> getFunctions concode_elem_sep Set<String> getTableNames concode_elem_sep Map<String,Table> getTableMap concode_elem_sep Set<String> getSubSchemaNames
Multimap < String , Function > function ( ) { return ImmutableMultimap . of ( ) ; }