public Object visit(DataContext ctx) throws CtxException {
Object ret = null;
Object check = null;
Object fromobj = null;
Object[] against = null;
String fldname = "";
if (ctx.field() != null) {
fldname = ctx.field().getName();
check = ctx.fieldVal();
against = ctx.coFieldVals();
// System.out.println("Comparing: " + check + ":" + against.length + ":" + fldname);
} else {
check = ctx.traversingObject();
against = ctx.coTraversingObjects();
// System.out.println("Comparing: " + check + ":" + against.length + ":" + fldname + ":");
}
if ((against == null) || (against.length <= 0))
except().te("Need to be traversing two objects atleast to compare");
if (ctx.before()) {
fromobj = against[0];
boolean same = serial().same(check, fromobj);
// System.out.println("Comparing: " + check + ":" + fromobj + ":" + same);
if (!same) {
int ind = -1;
String t = ctx.getType();
if ((t != null) && (t.length() > 0)) ind = Integer.parseInt(t);
DirtyField thisfld = new DirtyField(fldname, ind, ctx.field());
if ((_dirty == null) && (fldname.length() <= 0)) // only on the starting object
{
// System.out.println("Replacing: " + thisfld);
_dirty = thisfld;
} else {
String path = ctx.fieldpath();
DirtyField dfld = getDirtyField(path, _dirty);
// System.out.println(this + ": Got DirtyField for: " + path + ":" + dfld + ":" + _dirty);
assertion().assertNotNull(dfld, "Parent should have been dirty??");
List<DirtyField> sflds = dfld.getSubFields();
if (sflds == null) sflds = new ArrayList<DirtyField>();
sflds.add(thisfld);
dfld.setDirtySubFields(sflds);
}
if ((check instanceof Collection) || (check instanceof Map))
ret =
null; // do not go in and check changes within collection or map, shd just save fully?
else ret = check;
}
}
return ret;
}
private DirtyField getDirtyField(String path, DirtyField fld) {
if (path.indexOf(".") <= 0) return fld;
if (fld != null) {
String p1 = path.substring(0, path.indexOf("."));
String p2 = path.substring(path.indexOf(".") + 1);
List<DirtyField> sub = fld.getSubFields();
for (int i = 0; (sub != null) && (i < sub.size()); i++) {
DirtyField f = sub.get(i);
if (f.getFieldName().equals(p1)) return getDirtyField(p2, f);
}
}
return null;
}
public List<DirtyField> getDirtyFields() {
System.out.println("The visitor: " + this + ":" + _dirty);
List<DirtyField> ret = null;
if (_dirty != null) ret = _dirty.getSubFields();
return ret;
}