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


java.lang.Object
   net.sf.saxon.trans.Variable

Variable
final public class Variable implements VariableDeclaration,Binding,Serializable(Code)
An object representing an XPath variable for use in the standalone XPath API. The object can only be created by calling the declareVariable method of class StandaloneContext.




Method Summary
public  ValueRepresentationevaluateVariable(XPathContext context)
     Get the value of the variable.
public  intgetLocalSlotNumber()
     If this is a local variable held on the local stack frame, return the corresponding slot number.
public  intgetNameCode()
     Establish the nameCode of the name of this variable.
public  StringgetVariableName()
     Get the name of the variable.
final public  booleanisAssignable()
     Test whether it is permitted to assign to the variable using the saxon:assign extension element.
public  booleanisGlobal()
     Indicate whether the binding is local or global.
public static  Variablemake(QNameValue name, Configuration config)
    
public static  Variablemake(String qname, Configuration config)
    
public  voidregisterReference(BindingReference ref)
     Method called by the XPath expression parser to register a reference to this variable.
public  voidsetValue(Object value)
     Assign a value to the variable.
public  voidsetXPathValue(ValueRepresentation value)
     Assign a value to the variable.



Method Detail
evaluateVariable
public ValueRepresentation evaluateVariable(XPathContext context)(Code)
Get the value of the variable. This method is used by the XPath execution engine to retrieve the value.
Parameters:
  context - The dynamic evaluation context The value of the variable



getLocalSlotNumber
public int getLocalSlotNumber()(Code)
If this is a local variable held on the local stack frame, return the corresponding slot number. In other cases, return -1.



getNameCode
public int getNameCode()(Code)
Establish the nameCode of the name of this variable. the nameCode



getVariableName
public String getVariableName()(Code)
Get the name of the variable. Used for diagnostic purposes only. the name of the variable, as a string (containing the raw QName)



isAssignable
final public boolean isAssignable()(Code)
Test whether it is permitted to assign to the variable using the saxon:assign extension element. This will only be for an XSLT global variable where the extra attribute saxon:assignable="yes" is present.



isGlobal
public boolean isGlobal()(Code)
Indicate whether the binding is local or global. A global binding is one that has a fixed value for the life of a query or transformation; any other binding is local.



make
public static Variable make(QNameValue name, Configuration config)(Code)
Factory method, for use by the declareVariable method of class StandaloneContext



make
public static Variable make(String qname, Configuration config) throws XPathException(Code)
Factory method, retained for backwards compatibility
Parameters:
  qname - the lexical QName of the variable nameVariable.make(QNameValue,Configuration)



registerReference
public void registerReference(BindingReference ref)(Code)
Method called by the XPath expression parser to register a reference to this variable. This method should not be called by users of the API.



setValue
public void setValue(Object value) throws XPathException(Code)
Assign a value to the variable. This value may be changed between successive evaluations of a compiled XPath expression that references the variable.
Parameters:
  value - the value of the variable, as a Java object. This is converted to the "best fit"XPath data type.
throws:
  net.sf.saxon.trans.XPathException - if the Java value cannot be converted to an XPath type



setXPathValue
public void setXPathValue(ValueRepresentation value)(Code)
Assign a value to the variable. This value may be changed between successive evaluations of a compiled XPath expression that references the variable.
Parameters:
  value - the value of the variable, which must be an instance of a classrepresenting a value in the XPath model.



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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