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java.lang.Objectorg.jaxen.DefaultNavigator
Default implementation of Navigator.
This implementation is an abstract class, since some required operations cannot be implemented without additional knowledge of the object model.
When possible, default method implementations build upon each other, to reduce the number of methods required to be implemented for each object model. All methods, of course, may be overridden, to provide more-efficient implementations.
| Constructor Summary | |
DefaultNavigator()
|
|
| Method Summary | |
Iterator |
getAncestorAxisIterator(Object contextNode)
Retrieve an Iterator matching the ancestor
XPath axis. |
Iterator |
getAncestorOrSelfAxisIterator(Object contextNode)
Retrieve an Iterator matching the
ancestor-or-self XPath axis. |
Iterator |
getAttributeAxisIterator(Object contextNode)
Throws UnsupportedAxisException. |
Iterator |
getChildAxisIterator(Object contextNode)
Throws UnsupportedAxisException |
Iterator |
getDescendantAxisIterator(Object contextNode)
Retrieve an Iterator matching the descendant
XPath axis. |
Iterator |
getDescendantOrSelfAxisIterator(Object contextNode)
Retrieve an Iterator matching the
descendant-or-self XPath axis. |
Object |
getDocument(String url)
Default implementation that always returns null. |
Object |
getDocumentNode(Object contextNode)
Returns the document node that contains the given context node. |
Object |
getElementById(Object contextNode,
String elementId)
Default implementation that cannot find elements. |
Iterator |
getFollowingAxisIterator(Object contextNode)
Retrieve an Iterator matching the following
XPath axis. |
Iterator |
getFollowingSiblingAxisIterator(Object contextNode)
Retrieve an Iterator matching the
following-sibling XPath axis. |
Iterator |
getNamespaceAxisIterator(Object contextNode)
Throws UnsupportedAxisException. |
short |
getNodeType(Object node)
Returns a number that identifies the type of node that the given object represents in this navigator. |
Iterator |
getParentAxisIterator(Object contextNode)
Throws UnsupportedAxisException |
Object |
getParentNode(Object contextNode)
Default implementation that cannot find parent. |
Iterator |
getPrecedingAxisIterator(Object contextNode)
Retrieve an Iterator matching the preceding XPath axis. |
Iterator |
getPrecedingSiblingAxisIterator(Object contextNode)
Retrieve an Iterator matching the
preceding-sibling XPath axis. |
String |
getProcessingInstructionData(Object obj)
Retrieve the data of a processing-instruction. |
String |
getProcessingInstructionTarget(Object obj)
Retrieve the target of a processing-instruction. |
Iterator |
getSelfAxisIterator(Object contextNode)
Retrieve an Iterator matching the self XPath
axis. |
String |
translateNamespacePrefixToUri(String prefix,
Object element)
Translate a namespace prefix to a namespace URI, possibly considering a particular element node. |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
public DefaultNavigator()
| Method Detail |
public Iterator getChildAxisIterator(Object contextNode)
throws UnsupportedAxisException
UnsupportedAxisException
getChildAxisIterator in interface NavigatorcontextNode -
UnsupportedAxisException - always
public Iterator getDescendantAxisIterator(Object contextNode)
throws UnsupportedAxisException
NavigatorIterator matching the descendant
XPath axis.
getDescendantAxisIterator in interface NavigatorcontextNode - the original context node
UnsupportedAxisException - if the semantics of the desscendant axis are
not supported by this object model
public Iterator getParentAxisIterator(Object contextNode)
throws UnsupportedAxisException
UnsupportedAxisException
getParentAxisIterator in interface NavigatorcontextNode -
UnsupportedAxisException
public Iterator getAncestorAxisIterator(Object contextNode)
throws UnsupportedAxisException
NavigatorIterator matching the ancestor
XPath axis.
getAncestorAxisIterator in interface NavigatorcontextNode - the original context node
UnsupportedAxisException - if the semantics of the ancestor axis are
not supported by this object model
public Iterator getFollowingSiblingAxisIterator(Object contextNode)
throws UnsupportedAxisException
NavigatorIterator matching the
following-sibling XPath axis.
getFollowingSiblingAxisIterator in interface NavigatorcontextNode - the original context node
UnsupportedAxisException - if the semantics of the following-sibling axis are
not supported by this object model
public Iterator getPrecedingSiblingAxisIterator(Object contextNode)
throws UnsupportedAxisException
NavigatorIterator matching the
preceding-sibling XPath axis.
getPrecedingSiblingAxisIterator in interface NavigatorcontextNode - the original context node
UnsupportedAxisException - if the semantics of the preceding-sibling axis are
not supported by this object model
public Iterator getFollowingAxisIterator(Object contextNode)
throws UnsupportedAxisException
NavigatorIterator matching the following
XPath axis.
getFollowingAxisIterator in interface NavigatorcontextNode - the original context node
UnsupportedAxisException - if the semantics of the following axis are
not supported by this object model
public Iterator getPrecedingAxisIterator(Object contextNode)
throws UnsupportedAxisException
NavigatorIterator matching the preceding XPath axis.
getPrecedingAxisIterator in interface NavigatorcontextNode - the original context node
UnsupportedAxisException - if the semantics of the preceding axis are
not supported by this object model
public Iterator getAttributeAxisIterator(Object contextNode)
throws UnsupportedAxisException
UnsupportedAxisException. Subclasses that
support the attribute axis must override this method.
getAttributeAxisIterator in interface NavigatorcontextNode -
UnsupportedAxisException
public Iterator getNamespaceAxisIterator(Object contextNode)
throws UnsupportedAxisException
UnsupportedAxisException. Subclasses that
support the namespace axis must override this method.
getNamespaceAxisIterator in interface NavigatorcontextNode -
UnsupportedAxisException
public Iterator getSelfAxisIterator(Object contextNode)
throws UnsupportedAxisException
NavigatorIterator matching the self XPath
axis.
getSelfAxisIterator in interface NavigatorcontextNode - the original context node
UnsupportedAxisException - if the semantics of the self axis are
not supported by this object model
public Iterator getDescendantOrSelfAxisIterator(Object contextNode)
throws UnsupportedAxisException
NavigatorIterator matching the
descendant-or-self XPath axis.
getDescendantOrSelfAxisIterator in interface NavigatorcontextNode - the original context node
UnsupportedAxisException - if the semantics of the descendant-or-self axis are
not supported by this object model
public Iterator getAncestorOrSelfAxisIterator(Object contextNode)
throws UnsupportedAxisException
NavigatorIterator matching the
ancestor-or-self XPath axis.
getAncestorOrSelfAxisIterator in interface NavigatorcontextNode - the original context node
UnsupportedAxisException - if the semantics of the ancestor-or-self axis are
not supported by this object modelpublic Object getDocumentNode(Object contextNode)
Navigator
getDocumentNode in interface NavigatorcontextNode - the context node
Navigator.isDocument(Object)
public String translateNamespacePrefixToUri(String prefix,
Object element)
NavigatorStrictly speaking, prefix-to-URI translation should occur irrespective of any element in the document. This method is provided to allow a non-conforming ease-of-use enhancement.
translateNamespacePrefixToUri in interface Navigatorprefix - the prefix to translateelement - the element to consider during translation
NamespaceContextpublic String getProcessingInstructionTarget(Object obj)
Navigator
getProcessingInstructionTarget in interface Navigatorobj - the context processing-instruction node
public String getProcessingInstructionData(Object obj)
Navigator
getProcessingInstructionData in interface Navigatorobj - the context processing-instruction node
public short getNodeType(Object node)
Navigator
getNodeType in interface Navigatornode - ????
Pattern
public Object getParentNode(Object contextNode)
throws UnsupportedAxisException
getParentNode in interface NavigatorcontextNode - the node whose parent to return
UnsupportedAxisException - if the parent axis is not supportedNavigator.isDocument(java.lang.Object),
Navigator.isElement(java.lang.Object)
public Object getDocument(String url)
throws FunctionCallException
getDocument in interface Navigatorurl - the URL of the document to load
FunctionCallException - if an error occurs while loading the
URL; e.g. an I/O error or the document is malformed
public Object getElementById(Object contextNode,
String elementId)
getElementById in interface NavigatorcontextNode - a node from the document in which to look for the
idelementId - id to look for
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