org.apache.xpath

## Class XPathException

- java.lang.Object
- - java.lang.Throwable
  - - java.lang.Exception
    - - javax.xml.transform.TransformerException
      - - org.apache.xpath.XPathException

- All Implemented Interfaces:
    java.io.Serializable
  Direct Known Subclasses:
    XPathProcessorException

      public class XPathException
      extends TransformerException

  This class implements an exception object that all XPath classes will throw in case of an error. This class extends TransformerException, and may hold other exceptions. In the case of nested exceptions, printStackTrace will dump all the traces of the nested exceptions, not just the trace of this object.
  See Also:
    Serialized Form
  Usage:

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `XPathException(java.lang.String message)` Create an XPathException object that holds an error message.
    `XPathException(java.lang.String message, java.lang.Exception e)` Create an XPathException object that holds an error message, and another exception that caused this exception.
    `XPathException(java.lang.String message, ExpressionNode ex)` Create an XPathException object that holds an error message.
    `XPathException(java.lang.String message, Node styleNode, java.lang.Exception e)` Create an XPathException object that holds an error message, the stylesheet node that the error originated from, and another exception that caused this exception.
    `XPathException(java.lang.String message, java.lang.Object styleNode)` Create an XPathException object that holds an error message and the stylesheet node that the error originated from.

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `java.lang.Throwable` | `getException()` Return the embedded exception, if any.
    `java.lang.String` | `getMessage()` Find the most contained message.
    `java.lang.Object` | `getStylesheetNode()` Get the stylesheet node from where this error originated.
    `Node` | `getStylesheetNode(ExpressionNode ex)` Get the XSLT ElemVariable that this sub-expression references.
    `void` | `printStackTrace(java.io.PrintStream s)` Print the the trace of methods from where the error originated.
    `void` | `printStackTrace(java.io.PrintWriter s)` Print the the trace of methods from where the error originated.
    `void` | `setStylesheetNode(java.lang.Object styleNode)` Set the stylesheet node from where this error originated.

    - ### Methods inherited from class javax.xml.transform.TransformerException

      `getCause, getLocationAsString, getLocator, getMessageAndLocation, initCause, printStackTrace, setLocator`

    - ### Methods inherited from class java.lang.Throwable

      `addSuppressed, fillInStackTrace, getLocalizedMessage, getStackTrace, getSuppressed, setStackTrace, toString`

    - ### Methods inherited from class java.lang.Object

      `equals, getClass, hashCode, notify, notifyAll, wait, wait, wait`

- - ### Constructor Detail

    - #### XPathException

          public XPathException(java.lang.String message,
                        ExpressionNode ex)

      Create an XPathException object that holds an error message.
      Parameters:
        `message` - The error message.

    - #### XPathException

          public XPathException(java.lang.String message)

      Create an XPathException object that holds an error message.
      Parameters:
        `message` - The error message.

    - #### XPathException

          public XPathException(java.lang.String message,
                        java.lang.Object styleNode)

      Create an XPathException object that holds an error message and the stylesheet node that the error originated from.
      Parameters:
        `message` - The error message.
        `styleNode` - The stylesheet node that the error originated from.

    - #### XPathException

          public XPathException(java.lang.String message,
                        Node styleNode,
                        java.lang.Exception e)

      Create an XPathException object that holds an error message, the stylesheet node that the error originated from, and another exception that caused this exception.
      Parameters:
        `message` - The error message.
        `styleNode` - The stylesheet node that the error originated from.
        `e` - The exception that caused this exception.

    - #### XPathException

          public XPathException(java.lang.String message,
                        java.lang.Exception e)

      Create an XPathException object that holds an error message, and another exception that caused this exception.
      Parameters:
        `message` - The error message.
        `e` - The exception that caused this exception.

  - ### Method Detail

    - #### getStylesheetNode

          public java.lang.Object getStylesheetNode()

      Get the stylesheet node from where this error originated.
      Returns:
        The stylesheet node from where this error originated, or null.

    - #### setStylesheetNode

          public void setStylesheetNode(java.lang.Object styleNode)

      Set the stylesheet node from where this error originated.
      Parameters:
        `styleNode` - The stylesheet node from where this error originated, or null.

    - #### getStylesheetNode

          public Node getStylesheetNode(ExpressionNode ex)

      Get the XSLT ElemVariable that this sub-expression references. In order for this to work, the SourceLocator must be the owning ElemTemplateElement.
      Returns:
        The dereference to the ElemVariable, or null if not found.

    - #### printStackTrace

          public void printStackTrace(java.io.PrintStream s)

      Print the the trace of methods from where the error originated. This will trace all nested exception objects, as well as this object.
      Overrides:
        `printStackTrace` in class `TransformerException`
      Parameters:
        `s` - The stream where the dump will be sent to.

    - #### getMessage

          public java.lang.String getMessage()

      Find the most contained message.
      Overrides:
        `getMessage` in class `java.lang.Throwable`
      Returns:
        The error message of the originating exception.

    - #### printStackTrace

          public void printStackTrace(java.io.PrintWriter s)

      Print the the trace of methods from where the error originated. This will trace all nested exception objects, as well as this object.
      Overrides:
        `printStackTrace` in class `TransformerException`
      Parameters:
        `s` - The writer where the dump will be sent to.

    - #### getException

          public java.lang.Throwable getException()

      Return the embedded exception, if any. Overrides javax.xml.transform.TransformerException.getException().
      Overrides:
        `getException` in class `TransformerException`
      Returns:
        The embedded exception, or null if there is none.
      See Also:
        `TransformerException.getCause()`

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