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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=15435 New Preferences Architecture ------- Additional Comments From [EMAIL PROTECTED] 2003-09-22 12:17 ------- Hello Oleg, first, let me define the term's I'll use in this posting: params object: instance of DefaultHttpParams or one of it's subclasses parameter object: an object stored in a params object To me, a parameter object represents a value. The value may be simple or structured, but it is accessed read-only by the HTTP client. The parameter object may change it's value asynchronously, but such change is never effected directly by the HTTP client. Params objects may be modified by the HTTP client, namely by the setter methods that store the set values in the params object. However, such change is always an addition, replacement, or removal of a parameter object, never a modification of an existing one. Furthermore, the HTTP client never implicitly clones params objects. Under these assumptions, there is no need to make copies of parameter objects from the HTTP client's point of view, as they are read-only. An application programmer who uses parameter objects with changing values may have a need to control whether the same object or clones are stored in different params objects. However, as the HTTP client does not create clones implicitly, the application programmer has full freedom to clone all parameter objects that require cloning whenever params objects are prepared. Cloning may be controlled explicitly by replacing copy-by-reference entries in a cloned params object, or the params classes can be derived to clone specific entries. It is none of the HTTP client's concern. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
