private FactPattern visitFactPattern( FactPattern pattern ) { FactPattern clone = new FactPattern(); clone.setBoundName( pattern.getBoundName() ); clone.setFactType( pattern.getFactType() ); clone.setNegated( pattern.isNegated() ); CEPWindow cloneCEPWindow = new CEPWindow(); cloneCEPWindow.setOperator( pattern.getWindow().getOperator() ); cloneCEPWindow.setParameters( cloneCEPWindowParameters( pattern.getWindow() ) ); clone.setWindow( cloneCEPWindow ); for ( FieldConstraint fc : pattern.getFieldConstraints() ) { clone.addConstraint( (FieldConstraint) visit( fc ) ); } return clone; }