private static synchronized void lazyInit ( InputStream inStream ) { if ( registry == null ) { registry = new HashSet < ProteinModification > ( ) ; byId = new HashMap < String , ProteinModification > ( ) ; byResidId = new HashMap < String , Set < ProteinModification > > ( ) ; byPsimodId = new HashMap < String , Set < ProteinModification > > ( ) ; byPdbccId = new HashMap < String , Set < ProteinModification > > ( ) ; byKeyword = new HashMap < String , Set < ProteinModification > > ( ) ; byComponent = new HashMap < Component , Set < ProteinModification > > ( ) ; byCategory = new EnumMap < ModificationCategory , Set < ProteinModification > > ( ModificationCategory . class ) ; for ( ModificationCategory cat : ModificationCategory . values ( ) ) { byCategory . put ( cat , new HashSet < ProteinModification > ( ) ) ; } byOccurrenceType = new EnumMap < ModificationOccurrenceType , Set < ProteinModification > > ( ModificationOccurrenceType . class ) ; for ( ModificationOccurrenceType occ : ModificationOccurrenceType . values ( ) ) { byOccurrenceType . put ( occ , new HashSet < ProteinModification > ( ) ) ; } registerCommonProteinModifications ( inStream ) ; } }
Lazy Initialization the static variables and register common modifications .