Class ExtensionFunction

public class ExtensionFunction

extends Operation

Represents an element of the parse tree representing an extension function call.

$Revision: 1.13 $ $Date: 2004/03/25 05:42:01 $

Nested classes/interfaces inherited from class org.apache.commons.jxpath.ri.compiler.Expression
`Expression.PointerIterator`, `Expression.ValueIterator`

Fields inherited from class org.apache.commons.jxpath.ri.compiler.Operation
`args`

Fields inherited from class org.apache.commons.jxpath.ri.compiler.Expression
`NOT_A_NUMBER`, `ONE`, `ZERO`

Constructor Summary
`ExtensionFunction(QName functionName, args[] )`

Method Summary
`Object`	`compute(EvalContext context)`
`boolean`	`computeContextDependent()` An extension function gets the current context, therefore it MAY be context dependent.
`Object`	`computeValue(EvalContext context)`
`QName`	`getFunctionName()`
`String`	`toString()`

Methods inherited from class org.apache.commons.jxpath.ri.compiler.Operation
`computeContextDependent`, `getArguments`

Methods inherited from class org.apache.commons.jxpath.ri.compiler.Expression
`compute`, `computeContextDependent`, `computeValue`, `isContextDependent`, `iterate`, `iteratePointers`

public ExtensionFunction(QName functionName,
                         args[] )

public Object compute(EvalContext context)

Overrides:
compute in interface Expression

public boolean computeContextDependent()

An extension function gets the current context, therefore it MAY be context dependent.
Overrides:
computeContextDependent in interface Operation

public Object computeValue(EvalContext context)

Overrides:
computeValue in interface Expression

public QName getFunctionName()

public String toString()

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