程序包 com.hp.hpl.sparta.xpath
的使用

使用com.hp.hpl.sparta.xpath的程序包

程序包	说明
com.hp.hpl.sparta.xpath	XPath parse trees over which Visitor objects can traverse to apply the XPath expression to DOM nodes.

com.hp.hpl.sparta.xpath使用的com.hp.hpl.sparta.xpath中的类

类和说明
AllElementTest A '*' node test.
AttrCompareExpr Compare attribute to string.
AttrEqualsExpr A '@attrName = "value"' test.
AttrExistsExpr A '@attrName' test to see if attribute exists.
AttrExpr A boolean test on an attribute.
AttrGreaterExpr A '@attrName > n' test.
AttrLessExpr A '@attrName < "n"' test.
AttrNotEqualsExpr An expression testing that an attribute is not equal to a given string.
AttrRelationalExpr Compare attribute relative to integer.
AttrTest A node test for an element with a particular tagname.
BooleanExpr an expression that returns a boolean value.
BooleanExprVisitor Add functionality to subclasses of BooleanExpr.
ElementTest A node test for an element with a particular tagname.
NodeTest The test for a nodeset that appears before the optional [predicate] in an xpath step.
NodeTestVisitor Add functionality to ubclasses of NodeTest.
ParentNodeTest A '..' node test.
PositionEqualsExpr Test position within element list.
Step One of the steps which, separated by slashes, make up an XPath expression.
TextCompareExpr Compare text value.
TextEqualsExpr [text()='value'] expression Copyright (C) 2002 Hewlett-Packard Company.
TextExistsExpr [text()] expression This is part of the GoF Flyweight(195) pattern -- Only one object of this class ever exists, shared amongst all clients.
TextNotEqualsExpr An expression testing that the text node is not equal to a given string.
TextTest A "text()" node test in a Xpath step.
ThisNodeTest A '.' node test.
TrueExpr The boolean constant "true".
Visitor Something that crawls over the parse tree.
XPath The root of the parse tree for an XPath expression.
XPathException Thrown when some problem parsing or executing an XPath expression.