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## com.novell.xml.xpath.functions
Class xpathBoolean

    java.lang.Object
      com.novell.xml.xpath.Function
          com.novell.xml.xpath.functions.xpathBoolean

    public class xpathBoolean

extends Function

This class implements the XPath boolean(object?) built-in function

Constructor Summary
`xpathBoolean()` Construct an object for the boolean() function

Method Summary
`ExpressionValue` | `invoke(Object[] args)` Perform boolean() function
`String` | `toString()` Return function name.

Methods inherited from class com.novell.xml.xpath.Function
`getInstance, getSignature, isConstant, registerForReset`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

### xpathBoolean

    public xpathBoolean()

  Construct an object for the boolean() function

Method Detail

### invoke

    public ExpressionValue invoke(Object[] args)
                           throws XPathEvaluationException

  Perform boolean() function

  Overrides:
    `invoke` in class `Function`
  Parameters:
    `args` - List of arguments. First first argument must be the context node. The second argument must be the expression context object The third argument may not exist, or it may be an expression value
  Returns:
    The boolean value of the argument - the current context node (if no third parm) or the converted expression value
  Throws:
    `XPathEvaluationException`

### toString

    public String toString()

  Return function name.

  Overrides:
    `toString` in class `Object`
  Returns:
    Function name.

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