@Override
	public EClass getIfcDerivedUnit() {
		if (ifcDerivedUnitEClass == null) {
			ifcDerivedUnitEClass = (EClass) EPackage.Registry.INSTANCE.getEPackage(Ifc4Package.eNS_URI)
					.getEClassifiers().get(172);
		}
		return ifcDerivedUnitEClass;
	}
@ Override public EClass getIfcDerivedUnit ( ) { if ( ifcDerivedUnitEClass == null ) { ifcDerivedUnitEClass = ( EClass ) EPackage . Registry . INSTANCE . getEPackage ( Ifc4Package . eNS_URI ) . getEClassifiers ( ) . get ( 172 ) ; } return ifcDerivedUnitEClass ; }
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@generated