question: public void clear ( ) { dataDimensionItems . clear ( ) ; periods . clear ( ) ; relatives = null ; organisationUnits . clear ( ) ; dataElementGroups . clear ( ) ; organisationUnitGroups . clear ( ) ; organisationUnitLevels . clear ( ) ; categoryDimensions . clear ( ) ; categoryOptionGroups . clear ( ) ; attributeDimensions . clear ( ) ; dataElementDimensions . clear ( ) ; programIndicatorDimensions . clear ( ) ; userOrganisationUnit = false ; userOrganisationUnitChildren = false ; userOrganisationUnitGrandChildren = false ; itemOrganisationUnitGroups . clear ( ) ; }
target:  Clear or set to false all persistent dimensional (not option) properties for this object.