Uses of Class
org.apache.xpath.Expression

Packages that use Expression

org.apache.xalan.templates	Implements the Templates interface, and defines a set of classes that represent an XSLT stylesheet.
org.apache.xalan.transformer	In charge of run-time transformations and the production of result trees.
org.apache.xpath	Implementation of XPath; for the most part, only classes meant for public use are found at this root level of the XPath packages.
org.apache.xpath.axes	Implementation of XPath LocationPath support -- primary classes are LocPathIterator and UnionPathIterator.
org.apache.xpath.compiler	Implements an XPath parser which produces an OpMap, and a so-called Compiler which produces an expression tree for fast evaluation.
org.apache.xpath.functions	Implements XPath functions -- each function is derived from Function, FunctionOneArg, Function2Args, etc, with number-of-arguments checking being applied mainly at compile time -- this package only implements XPath functions, XSLT functions are found in the "templates" package.
org.apache.xpath.objects	Implementation of XPath polymorphic type objects -- this package will grow as XPath objects are expanded to support XML Schema data types.
org.apache.xpath.operations	Support for XPath operations, such as +, -, string(), etc.
org.apache.xpath.patterns	Implementation of XPath nodeTest support, and XSLT pattern matching support.

Uses of Expression in org.apache.xalan.templates

Subclasses of Expression in org.apache.xalan.templates

class	FuncDocument **For advanced use only** Execute the Doc() function.
class	FuncFormatNumb **For advanced use only** Execute the FormatNumber() function.
class	FuncKey **For advanced use only** Execute the Key() function.
class	XUnresolvedVariable An instance of this class holds unto a variable until it is executed.

Uses of Expression in org.apache.xalan.transformer

Subclasses of Expression in org.apache.xalan.transformer

class	KeyIterator **For internal use only** This class implements an optimized iterator for "key()" patterns.
class	KeyRefIterator **For internal use only** This class implements an optimized iterator for "key()" patterns.
class	KeyWalker **For internal use only** Walker for a Key() function.

Uses of Expression in org.apache.xpath

Methods in org.apache.xpath that return Expression

Expression

XPath.getExpression() Get the raw Expression object that this class wraps.

Methods in org.apache.xpath with parameters of type Expression

void	XPath.setExpression(Expression exp) Set the raw expression object for this object.

Uses of Expression in org.apache.xpath.axes

Subclasses of Expression in org.apache.xpath.axes

class	AncestorOrSelfWalker Walker for the 'ancestor-or-self' axes.
class	AncestorWalker Walker for the 'ancestor' axes.
class	AttributeIterator **For advanced use only** This class implements an optimized iterator for attribute axes patterns.
class	AttributeWalker Walker for the 'attribute' axes.
class	AttributeWalkerOneStep **For advanced use only** This walker should be used when the walker is at the end of a location path, or is the only step.
class	AxesWalker Serves as common interface for axes Walkers, and stores common state variables.
class	ChildIterator **For advanced use only** This class implements an optimized iterator for "node()" patterns, that is, any children of the context node.
class	ChildTestIterator **For advanced use only** This class implements an optimized iterator for children patterns that have a node test, and possibly a predicate.
class	ChildWalker Walker for the 'child' axes.
class	ChildWalkerMultiStep **For advanced use only** A child walker multistep is created while only child steps are found.
class	ChildWalkerOneStep **For advanced use only** Walker to use when we only have one step, but it has a predicate.
class	DescendantIterator **For advanced use only** This class implements an optimized iterator for descendant, descendant-or-self, or "//foo" patterns.
class	DescendantOrSelfWalker Walker for the 'descendant-or-self' axes.
class	DescendantWalker Walker for the 'descendant' axes.
class	FilterExprWalker Walker for the OP_VARIABLE, or OP_EXTFUNCTION, or OP_FUNCTION, or OP_GROUP, op codes.
class	FollowingSiblingWalker Walker for the 'following-sibling' axes.
class	FollowingWalker Walker for the 'following' axes.
class	LocPathIterator **For advanced use only** This class extends NodeSet, which implements NodeIterator, and fetches nodes one at a time in document order based on a XPath	class	NamespaceWalker Walker for the 'namespace' axes.
class	ParentWalker Walker for the 'parent' axes.
class	PrecedingSiblingWalker Walker for the 'preceding-sibling' axes.
class	PrecedingWalker Walker for the 'preceding' axes.
class	PredicatedNodeTest
class	ReverseAxesWalker Walker for a reverse axes.
class	RootWalker Walker for the FROM_ROOT axes.
class	RootWalkerMultiStep This class extends ChildWalkerMultiStep to handle the root step of patterns such as "/foo/baz" where the first step is the root, and the rest of the steps are simple child steps.
class	SelfWalker Walker for the 'self' axes.
class	SelfWalkerOneStep **For advanced use only** Class SelfWalkerOneStep
class	UnionPathIterator **For advanced use only** This class extends NodeSet, which implements NodeIterator, and fetches nodes one at a time in document order based on a XPath UnionExpr.

Uses of Expression in org.apache.xpath.compiler

Methods in org.apache.xpath.compiler that return Expression

Expression	Compiler.compile(int opPos) **For advanced use only** Execute the XPath object from a given opcode position.
Expression	Compiler.locationPath(int opPos) Compile a location path.
Expression	Compiler.predicate(int opPos) Compile a location step predicate expression.
Expression	Compiler.locationPathPattern(int opPos) Compile a location match pattern unit expression.
Expression[]	Compiler.getCompiledPredicates(int opPos) Compile a zero or more predicates for a given match pattern.

Methods in org.apache.xpath.compiler with parameters of type Expression

static int	FunctionTable.installFunction(java.lang.String name, Expression func) Install a built-in function.
static void	FunctionTable.installFunction(Expression func, int funcIndex) Install a function loader at a specific index.

Uses of Expression in org.apache.xpath.functions

Subclasses of Expression in org.apache.xpath.functions

class	FuncBoolean **For advanced use only** Execute the Boolean() function.
class	FuncCeiling **For advanced use only** Execute the Ceiling() function.
class	FuncConcat **For advanced use only** Execute the Concat() function.
class	FuncContains **For advanced use only** Execute the Contains() function.
class	FuncCount **For advanced use only** Execute the Count() function.
class	FuncCurrent **For advanced use only** Execute the current() function.
class	FuncDoclocation **For advanced use only** Execute the proprietary document-location() function, which returns a node set of documents.
class	FuncExtElementAvailable **For advanced use only** Execute the ExtElementAvailable() function.
class	FuncExtFunction **For advanced use only** An object of this class represents an extension call expression.
class	FuncExtFunctionAvailable **For advanced use only** Execute the ExtFunctionAvailable() function.
class	FuncFalse **For advanced use only** Execute the False() function.
class	FuncFloor **For advanced use only** Execute the Floor() function.
class	FuncGenerateId **For advanced use only** Execute the GenerateId() function.
class	FuncId **For advanced use only** Execute the Id() function.
class	FuncLang **For advanced use only** Execute the Lang() function.
class	FuncLast **For advanced use only** Execute the Last() function.
class	FuncLocalPart Execute the LocalPart() function.
class	FuncNamespace **For advanced use only** Execute the Namespace() function.
class	FuncNormalizeSpace **For advanced use only** Execute the normalize-space() function.
class	FuncNot **For advanced use only** Execute the Not() function.
class	FuncNumber **For advanced use only** Execute the Number() function.
class	FuncPosition **For advanced use only** Execute the Position() function.
class	FuncQname **For advanced use only** Execute the Qname() function.
class	FuncRound **For advanced use only** Execute the round() function.
class	FuncStartsWith **For advanced use only** Execute the StartsWith() function.
class	FuncString **For advanced use only** Execute the String() function.
class	FuncStringLength **For advanced use only** Execute the StringLength() function.
class	FuncSubstring **For advanced use only** Execute the Substring() function.
class	FuncSubstringAfter **For advanced use only** Execute the SubstringAfter() function.
class	FuncSubstringBefore **For advanced use only** Execute the SubstringBefore() function.
class	FuncSum **For advanced use only** Execute the Sum() function.
class	FuncSystemProperty **For advanced use only** Execute the SystemProperty() function.
class	Function **For advanced use only** This is a superclass of all XPath functions.
class	Function2Args **For advanced use only** Base class for functions that accept two arguments.
class	Function3Args **For advanced use only** Base class for functions that accept three arguments.
class	FunctionDef1Arg **For advanced use only** Base class for functions that accept one argument that can be defaulted if not specified.
class	FunctionMultiArgs **For advanced use only** Base class for functions that accept an undetermined number of multiple arguments.
class	FunctionOneArg **For advanced use only** Base class for functions that accept one argument.
class	FuncTranslate **For advanced use only** Execute the Translate() function.
class	FuncTrue **For advanced use only** Execute the True() function.
class	FuncUnparsedEntityURI **For advanced use only**

Methods in org.apache.xpath.functions that return Expression

Expression	FunctionOneArg.getArg0() Return the first argument passed to the function (at index 0).
Expression	Function2Args.getArg1() Return the second argument passed to the function (at index 1).
Expression	Function3Args.getArg2() Return the third argument passed to the function (at index 2).

Methods in org.apache.xpath.functions with parameters of type Expression

void	Function.setArg(Expression arg, int argNum) Set an argument expression for a function.
void	FunctionOneArg.setArg(Expression arg, int argNum) Set an argument expression for a function.
void	Function2Args.setArg(Expression arg, int argNum) Set an argument expression for a function.
void	Function3Args.setArg(Expression arg, int argNum) Set an argument expression for a function.
void	FuncExtFunction.setArg(Expression arg, int argNum) Set an argument expression for a function.
void	FunctionMultiArgs.setArg(Expression arg, int argNum) Set an argument expression for a function.

Uses of Expression in org.apache.xpath.objects

Subclasses of Expression in org.apache.xpath.objects

class	XBoolean **For advanced use only** This class represents an XPath boolean object, and is capable of converting the boolean to other types, such as a string.
class	XBooleanStatic **For internal use only** This class doesn't have any XPathContext, so override whatever to ensure it works OK.
class	XNodeSet This class represents an XPath nodeset object, and is capable of converting the nodeset to other types, such as a string.
class	XNull This class represents an XPath null object, and is capable of converting the null to other types, such as a string.
class	XNumber This class represents an XPath number, and is capable of converting the number to other types, such as a string.
class	XObject This class represents an XPath object, and is capable of converting the object to various types, such as a string.
class	XRTreeFrag This class represents an XPath result tree fragment object, and is capable of converting the RTF to other types, such as a string.
class	XString This class represents an XPath string object, and is capable of converting the string to other types, such as a number.

Uses of Expression in org.apache.xpath.operations

Subclasses of Expression in org.apache.xpath.operations

class	And The 'and' operation expression executer.
class	Bool The 'boolean()' operation expression executer.
class	Div The 'div' operation expression executer.
class	Equals The '=' operation expression executer.
class	Gt The '>' operation expression executer.
class	Gte The '>=' operation expression executer.
class	Lt The '<' operation expression executer.
class	Lte The '<=' operation expression executer.
class	Minus The binary '-' operation expression executer.
class	Mod The 'mod' operation expression executer.
class	Mult The '*' operation expression executer.
class	Neg The unary '-' operation expression executer.
class	NotEquals The '!=' operation expression executer.
class	Number The 'number()' operation expression executer.
class	Operation The baseclass for a binary operation.
class	Or The 'or' operation expression executer.
class	Plus The '+' operation expression executer.
class	Quo The 'quo' operation expression executer.
class	String The 'string()' operation expression executer.
class	UnaryOperation The unary operation base class.
class	Variable The variable reference expression executer.

Methods in org.apache.xpath.operations with parameters of type Expression

void	Operation.setLeftRight(Expression l, Expression r) Set the left and right operand expressions for this operation.
void	UnaryOperation.setRight(Expression r) Set the expression operand for the operation.

Uses of Expression in org.apache.xpath.patterns

Subclasses of Expression in org.apache.xpath.patterns

class	AncestorStepPattern **For advanced use only** Implements a match pattern step that tests an ancestor.
class	FunctionPattern **For advanced use only** Match pattern step that contains a function.
class	NodeTest **For advanced use only** This is the basic node test class for both match patterns and location path steps.
class	StepPattern **For advanced use only** This class represents a single pattern match step.
class	UnionPattern **For advanced use only** This class represents a union pattern, which can have multiple individual StepPattern patterns.

Methods in org.apache.xpath.patterns that return Expression

Expression

StepPattern.getPredicate(int i) Get a predicate expression.

Methods in org.apache.xpath.patterns with parameters of type Expression

void	StepPattern.setPredicates(Expression[] predicates) Set the predicates for this match pattern step.

Constructors in org.apache.xpath.patterns with parameters of type Expression

FunctionPattern.FunctionPattern(Expression expr)
Construct a FunctionPattern from a expression.