com.icl.saxon.functions
Class FormatNumber
java.lang.Object
|
+--com.icl.saxon.expr.Expression
|
+--com.icl.saxon.expr.Function
|
+--com.icl.saxon.functions.FormatNumber
- public class FormatNumber
- extends Function
Methods inherited from class com.icl.saxon.expr.Expression |
containsReferences, enumerate, evaluateAsBoolean, evaluateAsNodeSet, evaluateAsNumber, getStaticContext, indent, isContextDocumentNodeSet, make, outputStringValue, setStaticContext, usesCurrent |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
FormatNumber
public FormatNumber()
getName
public java.lang.String getName()
- Description copied from class:
Function
- Get the name of the function.
This method must be implemented in all subclasses.
- Overrides:
getName
in class Function
- Following copied from class:
com.icl.saxon.expr.Function
- Returns:
- the name of the function, as used in XSL expressions, but excluding
its namespace prefix
getDataType
public int getDataType()
- Determine the data type of the exprEssion
- Overrides:
getDataType
in class Expression
- Returns:
- Value.STRING
simplify
public Expression simplify()
throws XPathException
- Simplify and validate
- Overrides:
simplify
in class Expression
- Following copied from class:
com.icl.saxon.expr.Expression
- Returns:
- the simplified expression
evaluateAsString
public java.lang.String evaluateAsString(Context context)
throws XPathException
- Evaluate in a context where a string is wanted
- Overrides:
evaluateAsString
in class Expression
- Following copied from class:
com.icl.saxon.expr.Expression
- Parameters:
context
- The context in which the expression is to be evaluated- Returns:
- the value of the expression, evaluated in the current context
evaluate
public Value evaluate(Context c)
throws XPathException
- Evaluate in a general context
- Overrides:
evaluate
in class Expression
- Following copied from class:
com.icl.saxon.expr.Expression
- Parameters:
context
- The context in which the expression is to be evaluated- Returns:
- the value of the expression, evaluated in the current context
formatNumber
public java.lang.String formatNumber(double n,
java.lang.String format,
java.text.DecimalFormatSymbols dfs)
throws XPathException
- Here is the method that does the work. It needs to be synchronized because
it remembers information from one invocation to the next; it doesn't matter
if these are in different threads but it can't be interrupted. The reason for
remembering information is that getting a new DecimalFormatSymbols each time
is incredibly expensive, especially with the Microsoft Java VM. Actually
the synchronization is unnecessary if there is a bound Controller.
getDependencies
public int getDependencies()
- Determine the dependencies
- Overrides:
getDependencies
in class Expression
reduce
public Expression reduce(int dep,
Context c)
throws XPathException
- Reduce the dependencies
- Overrides:
reduce
in class Expression
- Following copied from class:
com.icl.saxon.expr.Expression
- Parameters:
dependencies
- The dependencies to be removed, e.g. Context.VARIABLEScontext
- The context to be used for the partial evaluation- Returns:
- a new expression (or Value) that does not have any of the specified dependencies