java - Remove attributes from XMLBean -

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assume there's xmlbeans xmlobject attributes, how can selected attributes in single step?

i'm expecting ....

removeattributes(xmlobject obj, string[] selectableattributes){};

now above method should return me xmlobject attributes.

assumption: attributes want remove xmlobject must optional in corresponding xml schema. under assumption, xmlbeans provides couple of useful methods: unsetx , issetx (where x attribute name. so, can implement removeattributes method in way:

public void removeattributes(xmlobject obj,      string[] removeattributenames)         throws illegalargumentexception, illegalaccessexception,         invocationtargetexception, securityexception,          nosuchmethodexception {     class<?> clazz = obj.getclass();     (int = 0; < removeattributenames.length; i++) {         string attrname =                  removeattributenames[i].substring(0, 1).touppercase() +                 removeattributenames[i].substring(1);         string issetmethodname = "isset" + attrname;          boolean isset = null;         try {             method issetmethod = clazz.getmethod(issetmethodname);             isset = (boolean) issetmethod.invoke(obj, new object[] {});         } catch (nosuchmethodexception e) {             system.out.println("attribute " + removeattributenames[i]                     + " not optional");         }          if (isset != null && isset.booleanvalue() == true) {             string unsetmethodname = "unset" + attrname;             method unsetmethod = clazz.getmethod(unsetmethodname);             unsetmethod.invoke(obj, new object[] {});         }     } }

note 1: have modified semantics of method signature: second argument (the string[]) list of attributes want remove. think more consistent method name (removeattributes), , simplify things (using unsetx , issetx).

note 2: reason calling issetx before calling unsetx unsetx throw invocationtargetexception if called when attribute x not set.

note 3: may want change exception handling according needs.


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