Github user xunzhang commented on a diff in the pull request:
https://github.com/apache/incubator-hawq/pull/828#discussion_r72937658
--- Diff: src/test/feature/lib/xml_parser.h ---
@@ -17,10 +17,27 @@ class XmlConfig {
public:
explicit XmlConfig(std::string);
+ // read an XML file into a tree
+ bool open();
+
+ // only free the XML document pointer
+ void closeNotSave();
+
+ // save the updated document to disk and free the XML document pointer
+ void closeAndSave();
+
// parse the configuration file
void parse();
// @param key The key of the configuration item
+ // @param value The updated value
+ // @param save whether save the updated document to disk, if save is
false, open() and closeAndSave() should be called additionally
+ // @ return The value of configuration item
+ bool setString(const std::string &key, const std::string &value, const
bool &save);
--- End diff --
With POD types, there is no case using const reference. For example, here
we should define as `bool setString(const std::string &key, const std::string
&value, bool save);`
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