net.sf.swan.xpath
Class XPathSupport

java.lang.Object
  |
  +--net.sf.swan.xpath.XPathSupport

Direct Known Subclasses:

Matcher, Selector

public class XPathSupport

extends java.lang.Object

Field Summary

protected net.sf.swan.xpath.XPathSupport.ParseAdapter	defaultParseAdapter
protected boolean	verifyVars

Constructor Summary

	XPathSupport()
	XPathSupport(org.jaxen.Navigator navigator) Initializes this XPathSupport with the given Navigator.
protected	XPathSupport(XPathSupport prototype)

Method Summary

protected org.jaxen.ContextSupport	createContextSupport()
protected org.jaxen.FunctionContext	createFunctionContext()
protected MatchContext	createMatchContext()
Matcher	createMatcher() Create a Matcher with a copy of this object's context.
protected org.jaxen.NamespaceContext	createNamespaceContext()
Selector	createSelector() Create a Selector with a copy of this object's context.
protected org.jaxen.VariableContext	createVariableContext()
protected org.jaxen.ContextSupport	getContextSupport()
java.lang.Object	getDocument(java.lang.String uri) Retrieves a document object from the specified URI.
org.jaxen.FunctionContext	getFunctionContext()
org.jaxen.Navigator	getNavigator()
protected org.saxpath.XPathReader	getReader()
protected java.lang.Object	getVariableValue(net.sf.swan.xpath.QualifiedName key)
java.lang.Object	getVariableValue(java.lang.String qName) Retrieves the variable with the specified qualified name.
java.lang.Object	getVariableValue(java.lang.String namespaceUri, java.lang.String localName) Retrieves the variable with the specified namespace and local name.
java.util.Map	keyMap(java.lang.Object rootNode, java.lang.String pattern, java.lang.String use) Creates an XSLT-like key map.
protected org.jaxen.expr.Expr	parseAVT(java.lang.String expr)
protected org.jaxen.expr.Expr	parseAVT(java.lang.String expr, java.lang.Object contextNode)
protected Pattern[]	parsePattern(java.lang.String expr)
protected Pattern[]	parsePattern(java.lang.String expr, java.lang.Object contextNode)
protected org.jaxen.expr.Expr	parseXPath(java.lang.String expr)
protected org.jaxen.expr.Expr	parseXPath(java.lang.String expr, java.lang.Object contextNode)
void	putNamespace(java.lang.String prefix, java.lang.String uri)
void	putVariableValue(java.lang.String qName, java.lang.Object value)
void	putVariableValue(java.lang.String namespaceUri, java.lang.String localName, java.lang.Object value)
java.lang.String	resolveNamespacePrefix(java.lang.String prefix)
void	setFunctionContext(org.jaxen.FunctionContext context)
void	setNavigator(org.jaxen.Navigator navigator) Sets the Navigator for use by the component.
protected boolean	toBoolean(java.lang.Object obj)
protected java.util.List	toList(java.lang.Object obj)
protected java.lang.Object	toSingle(java.lang.Object obj)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

verifyVars

protected boolean verifyVars

defaultParseAdapter

protected net.sf.swan.xpath.XPathSupport.ParseAdapter defaultParseAdapter

Constructor Detail

XPathSupport

public XPathSupport()

XPathSupport

public XPathSupport(org.jaxen.Navigator navigator)

Initializes this XPathSupport with the given Navigator.

See Also:

setNavigator(org.jaxen.Navigator)

XPathSupport

protected XPathSupport(XPathSupport prototype)

Method Detail

getDocument

public java.lang.Object getDocument(java.lang.String uri)
                             throws org.jaxen.JaxenException

Retrieves a document object from the specified URI. The object representation returned will depend upon the particular Navigator in use.

getNavigator

public org.jaxen.Navigator getNavigator()

setNavigator

public void setNavigator(org.jaxen.Navigator navigator)

Sets the Navigator for use by the component. If no Navigator is explicitly provided, a default one will be created that uses the DOM.

resolveNamespacePrefix

public java.lang.String resolveNamespacePrefix(java.lang.String prefix)

putNamespace

public void putNamespace(java.lang.String prefix,
                         java.lang.String uri)

getFunctionContext

public org.jaxen.FunctionContext getFunctionContext()

setFunctionContext

public void setFunctionContext(org.jaxen.FunctionContext context)

getVariableValue

public java.lang.Object getVariableValue(java.lang.String namespaceUri,
                                         java.lang.String localName)

Retrieves the variable with the specified namespace and local name.

Returns:

the variable value, or null if the variable has not been set

getVariableValue

public java.lang.Object getVariableValue(java.lang.String qName)

Retrieves the variable with the specified qualified name.

Returns:

the variable value, or null if the variable has not been set

putVariableValue

public void putVariableValue(java.lang.String namespaceUri,
                             java.lang.String localName,
                             java.lang.Object value)

putVariableValue

public void putVariableValue(java.lang.String qName,
                             java.lang.Object value)

createSelector

public Selector createSelector()

Create a Selector with a copy of this object's context. This includes all namespace bindings and variables, and the associated FunctionContext.

createMatcher

public Matcher createMatcher()

Create a Matcher with a copy of this object's context. This includes all namespace bindings, functions, and variables.

keyMap

public java.util.Map keyMap(java.lang.Object rootNode,
                            java.lang.String pattern,
                            java.lang.String use)
                     throws org.saxpath.SAXPathException

Creates an XSLT-like key map. This will recurse through the descendant hierarchy below the specified root node identifying each element that matches the provided pattern. For each such node, the "use" XPath expression is used to select a string identifier, and the element is stored in the map with the identifier as it's key.

Parameters:

rootNode - the root node from which to being searching

pattern - the XSLT pattern identifying elements to be stored in the map

use - an XPath expression to apply to each matching element to select its key

getVariableValue

protected java.lang.Object getVariableValue(net.sf.swan.xpath.QualifiedName key)

getContextSupport

protected org.jaxen.ContextSupport getContextSupport()

createContextSupport

protected org.jaxen.ContextSupport createContextSupport()

createFunctionContext

protected org.jaxen.FunctionContext createFunctionContext()

createNamespaceContext

protected org.jaxen.NamespaceContext createNamespaceContext()

createVariableContext

protected org.jaxen.VariableContext createVariableContext()

createMatchContext

protected MatchContext createMatchContext()

getReader

protected org.saxpath.XPathReader getReader()
                                     throws org.saxpath.SAXPathException

parseXPath

protected org.jaxen.expr.Expr parseXPath(java.lang.String expr)
                                  throws org.saxpath.SAXPathException

parseXPath

protected org.jaxen.expr.Expr parseXPath(java.lang.String expr,
                                         java.lang.Object contextNode)
                                  throws org.saxpath.SAXPathException

parseAVT

protected org.jaxen.expr.Expr parseAVT(java.lang.String expr)
                                throws org.saxpath.SAXPathException

parseAVT

protected org.jaxen.expr.Expr parseAVT(java.lang.String expr,
                                       java.lang.Object contextNode)
                                throws org.saxpath.SAXPathException

parsePattern

protected Pattern[] parsePattern(java.lang.String expr)
                          throws org.saxpath.SAXPathException

parsePattern

protected Pattern[] parsePattern(java.lang.String expr,
                                 java.lang.Object contextNode)
                          throws org.saxpath.SAXPathException

toList

protected java.util.List toList(java.lang.Object obj)

toSingle

protected java.lang.Object toSingle(java.lang.Object obj)

toBoolean

protected boolean toBoolean(java.lang.Object obj)