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Java Source Code / Java Documentation » XML » XPath Saxon » net.sf.saxon.trace

Source Cross Reference

Class Diagram

Java Document (Java Doc)

java.lang .Object

net.sf.saxon.trace .Location

Location

public class Location (Code)

This class holds constants identifying different kinds of location in a source stylesheet or query. These constants are used in the getConstructType() method of class InstructionInfo. Some of these locations represent points where the dynamic context changes, and they are therefore recorded as such on the context stack. Some of the locations represent points in the evaluation of a stylesheet (or query or XPath expression) that are notified to the trace listener. Some fulfil both roles.

Any constant used in net.sf.saxon.style.StandardNames can be used as a Location. Such names are generally used to identify XSLT instructions. They are also used for equivalent constructs in XQuery, for example XSL_ELEMENT is used for a computed element constructor in XQuery. The constants in StandardNames are all in the range 0-1023, so constants defined in this class are outside this range.

The constants in this file are annotated with Q to indicate they can appear in XQuery trace output, T to indicate they can appear in XSLT trace output, and/or C to indicate that they can appear on the dynamic context stack.

Field Summary
final public static int	BUILT_IN_TEMPLATE An XSLT built-in template rule.
final public static int	CASE_EXPRESSION CASE clause within "typeswitch".
final public static int	CONTROLLER The outer system environment, identified as the caller of a user query or stylesheet.
final public static int	DEFAULT_EXPRESSION DEFAULT clause within "typeswitch".
final public static int	ELSE_EXPRESSION An XPath or XQuery "else" clause.
final public static int	EXTENSION_INSTRUCTION An XSLT instruction.
final public static int	FILTER_EXPRESSION An XPath or XQuery filter expression.
final public static int	FOR_EXPRESSION An XPath or XQuery "for" clause.
final public static int	FUNCTION_CALL An XPath function call to a user-defined function.
final public static int	GROUPING_KEY A grouping key in XSLT.
final public static int	IF_EXPRESSION An XPath or XQuery "if" expression.
final public static int	LAZY_EVALUATION Lazy evaluation of an expression (this code is used to identify a context created as a saved copy of an existing context, to be stored in a Closure).
final public static int	LET_EXPRESSION An XQuery "let" clause, or an XSLT local variable (which compiles into a LET clause).
final public static int	LITERAL_RESULT_ATTRIBUTE An attribute of an XSLT literal result element or of an XQuery direct element constructor.
final public static int	LITERAL_RESULT_ELEMENT An XSLT literal result element, or an XQuery direct element constructor.
final public static int	ORDER_BY_CLAUSE An order-by clause in a FLWOR expression.
final public static int	PATH_EXPRESSION An XPath or XQuery path expression.
final public static int	PATTERN An XSLT Pattern.
final public static int	RETURN_EXPRESSION An XPath or XQuery "return" clause.
final public static int	SAXON_EVALUATE An XPath expression constructed dynamically using saxon:evaluate (or saxon:expression).
final public static int	SAXON_HIGHER_ORDER_EXTENSION_FUNCTION A higher-order extension function such as saxon:sum, saxon:highest.
final public static int	SAXON_SERIALIZE The saxon:serialize() extension function.
final public static int	SORT_KEY A sort key (or order-by key).
final public static int	THEN_EXPRESSION An XPath or XQuery "then" clause.
final public static int	TRACE_CALL An explicit call of the fn:trace() function.
final public static int	TYPESWITCH_EXPRESSION An XPath or XQuery "typeswitch" expression.
final public static int	UNCLASSIFIED Unclassified location.
final public static int	VALIDATE_EXPRESSION An XPath or XQuery "validate" expression.
final public static int	WHERE_CLAUSE A WHERE clause in a FLWOR expression.
final public static int	XPATH_EXPRESSION XPath expression, otherwise unclassified.
final public static int	XPATH_IN_XSLT Entry point to a top-level XPath expression within an XSLT stylesheet.

Field Detail

BUILT_IN_TEMPLATE
final public static int BUILT_IN_TEMPLATE(Code)
	An XSLT built-in template rule. Usage: TC

CASE_EXPRESSION
final public static int CASE_EXPRESSION(Code)
	CASE clause within "typeswitch". Usage: Q

CONTROLLER
final public static int CONTROLLER(Code)
	The outer system environment, identified as the caller of a user query or stylesheet. Usage:C

DEFAULT_EXPRESSION
final public static int DEFAULT_EXPRESSION(Code)
	DEFAULT clause within "typeswitch". Usage: Q

ELSE_EXPRESSION
final public static int ELSE_EXPRESSION(Code)
	An XPath or XQuery "else" clause. Usage: Q

EXTENSION_INSTRUCTION
final public static int EXTENSION_INSTRUCTION(Code)
	An XSLT instruction. The name of the instruction (which may be an extension instruction) can be obtained using the fingerprint property. Usage:T

FILTER_EXPRESSION
final public static int FILTER_EXPRESSION(Code)
	An XPath or XQuery filter expression. Usage: C

FOR_EXPRESSION
final public static int FOR_EXPRESSION(Code)
	An XPath or XQuery "for" clause. Usage: Q

FUNCTION_CALL
final public static int FUNCTION_CALL(Code)
	An XPath function call to a user-defined function. The "expression" property references the actual expression, of class ComputedExpression. The "target" property references the function being called, of class UserFunction. Usage: QTC

GROUPING_KEY
final public static int GROUPING_KEY(Code)
	A grouping key in XSLT. Usage: C

IF_EXPRESSION
final public static int IF_EXPRESSION(Code)
	An XPath or XQuery "if" expression. Usage: Q

LAZY_EVALUATION
final public static int LAZY_EVALUATION(Code)
	Lazy evaluation of an expression (this code is used to identify a context created as a saved copy of an existing context, to be stored in a Closure). Usage: C

LET_EXPRESSION
final public static int LET_EXPRESSION(Code)
	An XQuery "let" clause, or an XSLT local variable (which compiles into a LET clause). Usage: Q,T

LITERAL_RESULT_ATTRIBUTE
final public static int LITERAL_RESULT_ATTRIBUTE(Code)
	An attribute of an XSLT literal result element or of an XQuery direct element constructor. Usage: QT

LITERAL_RESULT_ELEMENT
final public static int LITERAL_RESULT_ELEMENT(Code)
	An XSLT literal result element, or an XQuery direct element constructor. Usage:QT

ORDER_BY_CLAUSE
final public static int ORDER_BY_CLAUSE(Code)
	An order-by clause in a FLWOR expression. Usage: Q

PATH_EXPRESSION
final public static int PATH_EXPRESSION(Code)
	An XPath or XQuery path expression. Usage: C

PATTERN
final public static int PATTERN(Code)
	An XSLT Pattern. Usage: C

RETURN_EXPRESSION
final public static int RETURN_EXPRESSION(Code)
	An XPath or XQuery "return" clause. Usage: Q

SAXON_EVALUATE
final public static int SAXON_EVALUATE(Code)
	An XPath expression constructed dynamically using saxon:evaluate (or saxon:expression). Usage: QTC

SAXON_HIGHER_ORDER_EXTENSION_FUNCTION
final public static int SAXON_HIGHER_ORDER_EXTENSION_FUNCTION(Code)
	A higher-order extension function such as saxon:sum, saxon:highest. Usage: C

SAXON_SERIALIZE
final public static int SAXON_SERIALIZE(Code)
	The saxon:serialize() extension function. Usage: C

SORT_KEY
final public static int SORT_KEY(Code)
	A sort key (or order-by key). Usage: C

THEN_EXPRESSION
final public static int THEN_EXPRESSION(Code)
	An XPath or XQuery "then" clause. Usage: Q

TRACE_CALL
final public static int TRACE_CALL(Code)
	An explicit call of the fn:trace() function. Usage: QT

TYPESWITCH_EXPRESSION
final public static int TYPESWITCH_EXPRESSION(Code)
	An XPath or XQuery "typeswitch" expression. Usage: Q

UNCLASSIFIED
final public static int UNCLASSIFIED(Code)
	Unclassified location. Used in fallback cases only.

VALIDATE_EXPRESSION
final public static int VALIDATE_EXPRESSION(Code)
	An XPath or XQuery "validate" expression. Usage: Q

WHERE_CLAUSE
final public static int WHERE_CLAUSE(Code)
	A WHERE clause in a FLWOR expression. Usage: Q

XPATH_EXPRESSION
final public static int XPATH_EXPRESSION(Code)
	XPath expression, otherwise unclassified. The "expression" property references the actual expression, of class ComputedExpression. Used in fallback cases only.

XPATH_IN_XSLT
final public static int XPATH_IN_XSLT(Code)
	Entry point to a top-level XPath expression within an XSLT stylesheet. Usage: TC

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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