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:

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

Field Summary

Fields

Modifier and Type	Field and Description
protected Exception	m_exception A nested exception.

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
Throwable	getException() Return the embedded exception, if any.
protected ExpressionNode	getExpressionOwner(ExpressionNode ex) Get the first non-Expression parent of this node.
String	getMessage() Find the most contained message.
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(PrintStream s) Print the the trace of methods from where the error originated.
void	printStackTrace(PrintWriter s) Print the the trace of methods from where the error originated.
void	setStylesheetNode(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

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

m_exception

protected Exception m_exception

A nested exception.

Constructor Detail

XPathException

public XPathException(String message,
                      ExpressionNode ex)

Create an XPathException object that holds an error message.

Parameters:

message - The error message.

XPathException

public XPathException(String message)

Create an XPathException object that holds an error message.

Parameters:

message - The error message.

XPathException

public XPathException(String message,
                      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(String message,
                      Node styleNode,
                      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(String message,
                      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 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(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.

getExpressionOwner

protected ExpressionNode getExpressionOwner(ExpressionNode ex)

Get the first non-Expression parent of this node.

Returns:

null or first ancestor that is not an Expression.

printStackTrace

public void printStackTrace(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 String getMessage()

Find the most contained message.

Overrides:

getMessage in class Throwable

Returns:

The error message of the originating exception.

printStackTrace

public void printStackTrace(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 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.