LocationKind (saxon JavaDoc)

java.lang.Object
- net.sf.saxon.trace.LocationKind

```
public class LocationKind
extends Object
```
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. They represent points in the evaluation of a stylesheet (or query or XPath expression) that are notified to the trace listener.
Any constant used in 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.

Since:

9.7: previously named net.sf.saxon.trace.Location. No longer used to identify constructs causing changes on the context stack; the class ContextOriginator is now used for this purpose.

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`CASE_EXPRESSION` CASE clause within "typeswitch".
`static int`	`CLAUSE_BASE` Values of the form CLAUSE_BASE + n represent FLWOR clauses
`static int`	`COPY_MODIFY_EXPRESSION` An XQuery Update copy-modify (transform) expression.
`static int`	`DEFAULT_EXPRESSION` DEFAULT clause within "typeswitch".
`static int`	`DELETE_EXPRESSION` An XPath or XQuery delete expression.
`static int`	`ELSE_EXPRESSION` An XPath or XQuery "else" clause.
`static int`	`EXTENSION_INSTRUCTION` An XSLT instruction.
`static int`	`FOR_EXPRESSION` An XPath or XQuery "for" clause.
`static int`	`FUNCTION` A function declaration in XSLT or XQuery
`static int`	`FUNCTION_CALL` An XPath function call to a user-defined function.
`static int`	`IF_EXPRESSION` An XPath or XQuery "if" expression.
`static int`	`INSERT_EXPRESSION` An XQuery Update insert expression.
`static int`	`LET_EXPRESSION` An XQuery "let" clause, or an XSLT local variable (which compiles into a LET clause).
`static int`	`LITERAL_RESULT_ATTRIBUTE` An attribute of an XSLT literal result element or of an XQuery direct element constructor.
`static int`	`LITERAL_RESULT_ELEMENT` An XSLT literal result element, or an XQuery direct element constructor.
`static int`	`ORDER_BY_CLAUSE` An order-by clause in a FLWOR expression.
`static int`	`RENAME_EXPRESSION` An XPath or XQuery rename expression.
`static int`	`REPLACE_EXPRESSION` An XPath or XQuery replace expression.
`static int`	`RETURN_EXPRESSION` An XPath or XQuery "return" clause.
`static int`	`SAXON_EVALUATE` An XPath expression constructed dynamically using saxon:evaluate (or saxon:expression).
`static int`	`SWITCH_EXPRESSION` An XPath or XQuery "switch" expression.
`static int`	`TEMPLATE` An XSLT user-written template rule or named template.
`static int`	`THEN_EXPRESSION` An XPath or XQuery "then" clause.
`static int`	`TRACE_CALL` An explicit call of the fn:trace() function.
`static int`	`TYPESWITCH_EXPRESSION` An XPath or XQuery "typeswitch" expression.
`static int`	`UNCLASSIFIED` Unclassified location.
`static int`	`VALIDATE_EXPRESSION` An XPath or XQuery "validate" expression.
`static int`	`WHERE_CLAUSE` A WHERE clause in a FLWOR expression.
`static int`	`XPATH_EXPRESSION` XPath expression, otherwise unclassified.
`static int`	`XPATH_IN_XSLT` Entry point to a top-level XPath expression within an XSLT stylesheet.
`static int`	`XQUERY_BODY` The main XQuery body

Method Summary
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - EXTENSION_INSTRUCTION
```
public static final int EXTENSION_INSTRUCTION
```
    An XSLT instruction. The name of the instruction (which may be an extension instruction) can be obtained using the fingerprint property. Usage:T
    
    See Also:
    
    Constant Field Values
  - LITERAL_RESULT_ELEMENT
```
public static final int LITERAL_RESULT_ELEMENT
```
    An XSLT literal result element, or an XQuery direct element constructor. Usage:QT
    
    See Also:
    
    Constant Field Values
  - LITERAL_RESULT_ATTRIBUTE
```
public static final int LITERAL_RESULT_ATTRIBUTE
```
    An attribute of an XSLT literal result element or of an XQuery direct element constructor. Usage: QT
    
    See Also:
    
    Constant Field Values
  - TEMPLATE
```
public static final int TEMPLATE
```
    An XSLT user-written template rule or named template. Usage: T
    
    See Also:
    
    Constant Field Values
  - FUNCTION_CALL
```
public static final int FUNCTION_CALL
```
    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
    
    See Also:
    
    Constant Field Values
  - XPATH_IN_XSLT
```
public static final int XPATH_IN_XSLT
```
    Entry point to a top-level XPath expression within an XSLT stylesheet. Usage: TC
    
    See Also:
    
    Constant Field Values
  - FOR_EXPRESSION
```
public static final int FOR_EXPRESSION
```
    An XPath or XQuery "for" clause. Usage: Q
    
    See Also:
    
    Constant Field Values
  - LET_EXPRESSION
```
public static final int LET_EXPRESSION
```
    An XQuery "let" clause, or an XSLT local variable (which compiles into a LET clause). Usage: Q,T
    
    See Also:
    
    Constant Field Values
  - RETURN_EXPRESSION
```
public static final int RETURN_EXPRESSION
```
    An XPath or XQuery "return" clause. Usage: Q
    
    See Also:
    
    Constant Field Values
  - IF_EXPRESSION
```
public static final int IF_EXPRESSION
```
    An XPath or XQuery "if" expression. Usage: Q
    
    See Also:
    
    Constant Field Values
  - THEN_EXPRESSION
```
public static final int THEN_EXPRESSION
```
    An XPath or XQuery "then" clause. Usage: Q
    
    See Also:
    
    Constant Field Values
  - ELSE_EXPRESSION
```
public static final int ELSE_EXPRESSION
```
    An XPath or XQuery "else" clause. Usage: Q
    
    See Also:
    
    Constant Field Values
  - WHERE_CLAUSE
```
public static final int WHERE_CLAUSE
```
    A WHERE clause in a FLWOR expression. Usage: Q
    
    See Also:
    
    Constant Field Values
  - ORDER_BY_CLAUSE
```
public static final int ORDER_BY_CLAUSE
```
    An order-by clause in a FLWOR expression. Usage: Q
    
    See Also:
    
    Constant Field Values
  - TYPESWITCH_EXPRESSION
```
public static final int TYPESWITCH_EXPRESSION
```
    An XPath or XQuery "typeswitch" expression. Usage: Q
    
    See Also:
    
    Constant Field Values
  - CASE_EXPRESSION
```
public static final int CASE_EXPRESSION
```
    CASE clause within "typeswitch". Usage: Q
    
    See Also:
    
    Constant Field Values
  - DEFAULT_EXPRESSION
```
public static final int DEFAULT_EXPRESSION
```
    DEFAULT clause within "typeswitch". Usage: Q
    
    See Also:
    
    Constant Field Values
  - VALIDATE_EXPRESSION
```
public static final int VALIDATE_EXPRESSION
```
    An XPath or XQuery "validate" expression. Usage: Q
    
    See Also:
    
    Constant Field Values
  - SWITCH_EXPRESSION
```
public static final int SWITCH_EXPRESSION
```
    An XPath or XQuery "switch" expression. Usage: Q
    
    See Also:
    
    Constant Field Values
  - COPY_MODIFY_EXPRESSION
```
public static final int COPY_MODIFY_EXPRESSION
```
    An XQuery Update copy-modify (transform) expression. Usage: Q
    
    See Also:
    
    Constant Field Values
  - INSERT_EXPRESSION
```
public static final int INSERT_EXPRESSION
```
    An XQuery Update insert expression. Usage: Q
    
    See Also:
    
    Constant Field Values
  - REPLACE_EXPRESSION
```
public static final int REPLACE_EXPRESSION
```
    An XPath or XQuery replace expression. Usage: Q
    
    See Also:
    
    Constant Field Values
  - DELETE_EXPRESSION
```
public static final int DELETE_EXPRESSION
```
    An XPath or XQuery delete expression. Usage: Q
    
    See Also:
    
    Constant Field Values
  - RENAME_EXPRESSION
```
public static final int RENAME_EXPRESSION
```
    An XPath or XQuery rename expression. Usage: Q
    
    See Also:
    
    Constant Field Values
  - TRACE_CALL
```
public static final int TRACE_CALL
```
    An explicit call of the fn:trace() function. Usage: QT
    
    See Also:
    
    Constant Field Values
  - SAXON_EVALUATE
```
public static final int SAXON_EVALUATE
```
    An XPath expression constructed dynamically using saxon:evaluate (or saxon:expression). Usage: QTC
    
    See Also:
    
    Constant Field Values
  - FUNCTION
```
public static final int FUNCTION
```
    A function declaration in XSLT or XQuery
    
    See Also:
    
    Constant Field Values
  - XQUERY_BODY
```
public static final int XQUERY_BODY
```
    The main XQuery body
    
    See Also:
    
    Constant Field Values
  - XPATH_EXPRESSION
```
public static final int XPATH_EXPRESSION
```
    XPath expression, otherwise unclassified. The "expression" property references the actual expression, of class ComputedExpression. Used in fallback cases only.
    
    See Also:
    
    Constant Field Values
  - UNCLASSIFIED
```
public static final int UNCLASSIFIED
```
    Unclassified location. Used in fallback cases only.
    
    See Also:
    
    Constant Field Values
  - CLAUSE_BASE
```
public static final int CLAUSE_BASE
```
    Values of the form CLAUSE_BASE + n represent FLWOR clauses
    
    See Also:
    
    Constant Field Values

Class LocationKind

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

EXTENSION_INSTRUCTION

LITERAL_RESULT_ELEMENT

LITERAL_RESULT_ATTRIBUTE

TEMPLATE

FUNCTION_CALL

XPATH_IN_XSLT

FOR_EXPRESSION

LET_EXPRESSION

RETURN_EXPRESSION

IF_EXPRESSION

THEN_EXPRESSION

ELSE_EXPRESSION

WHERE_CLAUSE

ORDER_BY_CLAUSE

TYPESWITCH_EXPRESSION

CASE_EXPRESSION

DEFAULT_EXPRESSION

VALIDATE_EXPRESSION

SWITCH_EXPRESSION

COPY_MODIFY_EXPRESSION

INSERT_EXPRESSION

REPLACE_EXPRESSION

DELETE_EXPRESSION

RENAME_EXPRESSION

TRACE_CALL

SAXON_EVALUATE

FUNCTION

XQUERY_BODY

XPATH_EXPRESSION

UNCLASSIFIED

CLAUSE_BASE