public boolean eIsSet( EStructuralFeature eFeature )
public boolean eIsSet( int featureID )
	public boolean eIsSet( EStructuralFeature eFeature )	{		switch ( eDerivedStructuralFeatureID( eFeature ) )		{			case ComponentPackage.GRID__LINE_ATTRIBUTES :				return lineAttributes != null;			case ComponentPackage.GRID__TICK_STYLE :				return isSetTickStyle( );			case ComponentPackage.GRID__TICK_ATTRIBUTES :				return tickAttributes != null;			case ComponentPackage.GRID__TICK_SIZE :				return isSetTickSize( );			case ComponentPackage.GRID__TICK_COUNT :				return isSetTickCount( );		}		return eDynamicIsSet( eFeature );	}