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Java Source Code / Java Documentation » XML » saxonb » net.sf.saxon.expr 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   net.sf.saxon.expr.RoleLocator

RoleLocator
public class RoleLocator implements Serializable(Code)
A RoleLocator identifies the role in which an expression is used, for example as the third argument of the concat() function. This information is stored in an ItemChecker or CardinalityChecker so that good diagnostics can be achieved when run-time type errors are detected.


Field Summary
final public static  intBINARY_EXPR
    
final public static  intFUNCTION
    
final public static  intFUNCTION_RESULT
    
final public static  intINSTRUCTION
    
final public static  intORDER_BY
    
final public static  intTEMPLATE_RESULT
    
final public static  intTYPE_OP
    
final public static  intVARIABLE
    

Constructor Summary
public  RoleLocator(int kind, Object container, int operand, NamePool namePool)
     Create information about the role of a subexpression within its parent expression
Parameters:
  kind - the kind of parent expression, e.g.

Method Summary
public  StringcomposeErrorMessage(ItemType requiredItemType, ItemType suppliedItemType, NamePool pool)
    
public  StringgetErrorCode()
    
public  StringgetMessage()
    
public  SourceLocatorgetSourceLocator()
    
public  voidsetErrorCode(String code)
    
public  voidsetSourceLocator(SourceLocator locator)
    

Field Detail
BINARY_EXPR
final public static int BINARY_EXPR(Code)



FUNCTION
final public static int FUNCTION(Code)



FUNCTION_RESULT
final public static int FUNCTION_RESULT(Code)



INSTRUCTION
final public static int INSTRUCTION(Code)



ORDER_BY
final public static int ORDER_BY(Code)



TEMPLATE_RESULT
final public static int TEMPLATE_RESULT(Code)



TYPE_OP
final public static int TYPE_OP(Code)



VARIABLE
final public static int VARIABLE(Code)




Constructor Detail
RoleLocator
public RoleLocator(int kind, Object container, int operand, NamePool namePool)(Code)
Create information about the role of a subexpression within its parent expression
Parameters:
  kind - the kind of parent expression, e.g. a function call or a variable reference
Parameters:
  container - the name of the object in the parent expression, e.g. a function name orinstruction name. May be expressed either as a String or as an Integer nameCode in the name pool.
Parameters:
  operand - Ordinal position of this subexpression, e.g. the position of an argument in
Parameters:
  namePool - The name pool. Must be supplied if the second argument is an Integer namecode.Otherwise, may be null.




Method Detail
composeErrorMessage
public String composeErrorMessage(ItemType requiredItemType, ItemType suppliedItemType, NamePool pool)(Code)
Construct a full error message



getErrorCode
public String getErrorCode()(Code)
Get the error code to be produced if a type error is detected code The error code



getMessage
public String getMessage()(Code)
Construct and return the error message indicating a type error the constructed error message



getSourceLocator
public SourceLocator getSourceLocator()(Code)
Get the source location (if known - return null if not known)



setErrorCode
public void setErrorCode(String code)(Code)
Set the error code to be produced if a type error is detected
Parameters:
  code - The error code



setSourceLocator
public void setSourceLocator(SourceLocator locator)(Code)
Set the source location



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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