MessageListener

```
public interface MessageListener
```
A user-written implementation of the MessageListener interface may be registered with the XsltTransformer to receive notification of xsl:message output. Each xsl:message instruction that is evaluated results in a single call to the MessageListener

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`message(XdmNode content, boolean terminate, javax.xml.transform.SourceLocator locator)`	Notify a message written using the `xsl:message` instruction

- Method Detail
  - message
```
void message(XdmNode content,
             boolean terminate,
             javax.xml.transform.SourceLocator locator)
```
    Notify a message written using the xsl:message instruction
    
    Parameters:
    
    content - a document node representing the message content. Note that the output of xsl:message is always an XML document node. It can be flattened to obtain the string value if required by calling getStringValue().
    
    terminate - Set to true if terminate="yes" was specified or to false otherwise. The message listener does not need to take any special action based on this parameter, but the information is available if required. If terminate="yes" was specified, then the transformation will abort with an exception immediately on return from this callback.
    
    locator - an object that contains the location of the xsl:message instruction in the stylesheet that caused this message to be output. This provides access to the URI of the stylesheet module and the line number of the xsl:message instruction.