QXmlNamePoolis used to optimize operations on instances of
QXmlName. An instance of
QXmlNamerepresents an XML name in a way that allows the XML name to be compared and passed around efficiently. The efficiency is achieved by storing the strings comprising the XML names in an instance of
QXmlNamePool, where they are mapped to binary identifiers, which are then packed into a key which is stored in the
This means that each instance of
QXmlNameis tied to the name pool it was created with, and that name pool should be kept in scope and used to create all instances of
QXmlNamethat might be compared. Note also that the name pool is required if you must reconstitute the
QXmlNameas text, or if you must access any of its component strings, so although instances of
QXmlNamecan be compared without reference to a name pool, the name pool must be kept in scope if the name’s strings must be accessed later.
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