QSimpleXmlNodeModel Class Reference
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The QSimpleXmlNodeModel class is an implementation of QAbstractXmlNodeModel sufficient for many common cases. 更多...

方法

__init__ ( self , QXmlNamePool namePool )
QUrl baseUri ( self , QXmlNodeModelIndex node )
QXmlNodeModelIndex elementById ( self , QXmlName id )
QXmlNamePool namePool ( self )
list-of-QXmlName namespaceBindings ( self , QXmlNodeModelIndex)
list-of-QXmlNodeModelIndex nodesByIdref ( self , QXmlName idref )
QString stringValue ( self , QXmlNodeModelIndex node )

详细描述

The QSimpleXmlNodeModel class is an implementation of QAbstractXmlNodeModel sufficient for many common cases.

子类化 QAbstractXmlNodeModel can be a significant task, because it requires implementing several, complex member functions. QSimpleXmlNodeModel provides default implementations of these member functions that are suitable for a wide range of node models.

Subclasses of QSimpleXmlNodeModel must be thread-safe.

方法文档编制

QSimpleXmlNodeModel.init ( self , QXmlNamePool namePool )

构造 QSimpleXmlNodeModel for use with with the specified namePool .

QUrl QSimpleXmlNodeModel.baseUri ( self , QXmlNodeModelIndex node )

重实现自 QAbstractXmlNodeModel.baseUri ().

Returns the base URI for node . This is always the document URI.

另请参阅 documentUri ().

QXmlNodeModelIndex QSimpleXmlNodeModel.elementById ( self , QXmlName id )

重实现自 QAbstractXmlNodeModel.elementById ().

Always returns a default constructed QXmlNodeModelIndex instance, regardless of id .

This effectively means the model has no elements that have an id.

QXmlNamePool QSimpleXmlNodeModel.namePool ( self )

Returns the name pool associated with this model. The implementation of name () will use this name pool to create names.

list-of-QXmlName QSimpleXmlNodeModel.namespaceBindings ( self , QXmlNodeModelIndex )

重实现自 QAbstractXmlNodeModel.namespaceBindings ().

Always returns an empty QVector . This signals that no namespace bindings are in scope for node .

list-of-QXmlNodeModelIndex QSimpleXmlNodeModel.nodesByIdref ( self , QXmlName idref )

重实现自 QAbstractXmlNodeModel.nodesByIdref ().

Always returns an empty vector, regardless of idref .

This effectively means the model has no elements or attributes of type IDREF .

QString QSimpleXmlNodeModel.stringValue ( self , QXmlNodeModelIndex node )

重实现自 QAbstractXmlNodeModel.stringValue ().

若 node is an element or attribute, typedValue () is called, and the return value converted to a string, as per XQuery 's rules.

若 node is another type of node, the empty string is returned.

If this function is overridden for comments or processing instructions, it is important to remember to call it (for elements and attributes having values not of type xs:string ) 到 ensure that the values are formatted according to XQuery .

QSimpleXmlNodeModel Class Reference [ QtXmlPatterns module]

方法