public boolean equals(Object o) {
if (!(o instanceof AttributeList)) return false;
AttributeList a = (AttributeList) o;
if (size() != a.size()) return false;
for (int i = 0; i < size(); i++) if (!attr.get(i).equals(a.attr.get(i))) return false;
return true;
}
/** This method returns new AttributeList by replacing an element with a new element. */
public AttributeList rename(String from, String to) {
AttributeList rval = new AttributeList();
for (int i = 0; i < size(); i++) {
String s = getString(i);
if (from.equals(s)) rval.add(to);
else rval.add(s);
}
return rval;
}
/** This method returns new AttributeList by replacing all source names with a new source name. */
public AttributeList renameAllSourceNames(String to) {
AttributeList rval = copy();
for (int i = 0; i < rval.attr.size(); i++) {
if (rval.isAttribute(i)) {
Attribute a = rval.getAttribute(i);
rval.attr.set(i, new Attribute(to, a.getColumnName()));
} else if (rval.isFunction(i)) {
FunctionParameter f = rval.getFunction(i);
AttributeList args = f.getArguments().renameAllSourceNames(to);
rval.attr.set(i, new FunctionParameter(f.getFunctionName(), args));
}
}
return rval;
}
/** This method returns new AttributeList by replaceing given column name with new column name. */
public AttributeList renameColumnName(String from, String to) {
AttributeList rval = copy();
if (from == null || to == null || from.equals(to)) return rval;
for (int i = 0; i < rval.attr.size(); i++) {
if (rval.isAttribute(i)) {
Attribute a = rval.getAttribute(i);
if (a.getColumnName().equals(from)) rval.attr.set(i, new Attribute(a.getSourceName(), to));
} else if (rval.isFunction(i)) {
FunctionParameter f = rval.getFunction(i);
AttributeList args = f.getArguments().renameColumnName(from, to);
rval.attr.set(i, new FunctionParameter(f.getFunctionName(), args));
}
}
return rval;
}
public static AttributeList parse(String str) throws StreamSpinnerException {
AttributeList rval = new AttributeList();
String[] tokens = str.split("\\s*,\\s*");
String buf = "";
for (int i = 0; tokens != null && i < tokens.length; i++) {
buf = buf + tokens[i];
if (buf.indexOf("(") >= 0 && (!FunctionParameter.isFunction(buf))) {
buf = buf + ",";
continue;
}
rval.add(buf);
buf = "";
}
if (!buf.equals("")) throw new StreamSpinnerException("Cannot parse string : " + str);
return rval;
}
public AttributeList concat(AttributeList target) {
AttributeList rval = copy();
for (int i = 0; i < target.size(); i++) rval.attr.add(target.attr.get(i));
return rval;
}
public AttributeList concat(String newattr) {
AttributeList rval = copy();
rval.add(newattr);
return rval;
}