TraceableComponent

All Superinterfaces:

Locatable, Traceable

All Known Implementing Classes:

GlobalParam, GlobalVariable, MemoFunction, NamedTemplate, StreamableUserFunction, TemplateRule, TemplateRuleEE, UndeclaredVariable, UserFunction, XQueryExpression, XQueryExpressionEE
```
public interface TraceableComponent
extends Traceable
```
A construct whose execution can be notified to a TraceListener. In practice this is a function or template or global variable.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Expression`	`getBody()`	Get the expression at the root of the expression tree used to evaluate this construct
`java.lang.String`	`getTracingTag()`	Get a string to identify the type of component
`void`	`setBody(Expression expression)`	Set the expression to be used to evaluate this construct

Methods inherited from interface net.sf.saxon.expr.Locatable
getLocation

Methods inherited from interface net.sf.saxon.trace.Traceable
gatherProperties, getObjectName

- Method Detail
  - getBody
```
Expression getBody()
```
    Get the expression at the root of the expression tree used to evaluate this construct
    
    Returns:
    
    the root expression
  - setBody
```
void setBody(Expression expression)
```
    Set the expression to be used to evaluate this construct
    
    Parameters:
    
    expression - the evaluation expression
  - getTracingTag
```
java.lang.String getTracingTag()
```
    Get a string to identify the type of component
    
    Returns:
    
    an identifying string