业务对象——WTPart

1.根据编号查询部件master

String number="传入编号";

QuerySpec qs=new QuerySpec(WTPartMaster.class);

SearchCondition sc=new SearchCondition(WTPartMaster,"number",SearchCondition.EQUAL,number);

qs.appendWhere(sc);

QueryResult qr=PersistenceHelper.service.find(qs);

WTPartMaster master=null;

while(qr.hasMoreElements()){

　master = (WTPartMaster )qr.nextElement();

}

return master;

2.根据master查询WTPart

ConfigSpec cs=ConfigHelper.service.getDefaultConfigSpecFor(WTPart.class);

QueryResult qr=ConfigHelper.service.filteredIterationsof(master,cs);

WTPart part=null;

while(qr.hasMoreElements()){

　　part=(WTPart)qr.nextElement();

}

return part;

3.根据名称和视图查询WTPart,查询到的是当前视图下部件的集合；

String name="部件的名称";

String view="部件的视图";  //例如：Design；

QuerySpec qs=new QuerySpec(WTPart.class);

SearchCondition sc=new SearchCondition(WTPart.class,WTPart.NAME,SearchCondition.EQUAL,name);

qs.appendWhere(sc);

View view=ViewHelper.service.getView("Design");

SearchCondition sc2=new SearchCondition(WTPart.class，WTPart.VIEW_NAME,SearchCondition.EQUAL,view.getName);

qs.appendWhere(sc2);

QueryResult qr=PersistenceHelper.service.find(qs);

ArrayList<WTPart> parts=new ArrayList<>();

WTPart part=null;

While(qr.hasMoreElements()){

　　part=qr.nextElement();

　　parts.add(part);

}

return parts;