public String getExpression() 
{
		return this.expression;
}

Return this pointcut's expression.

 public String getLocation() 
{
		return this.location;
}

Return location information about the pointcut expression if available. This is useful in debugging.

 protected  void onSetExpression(String expression) throws IllegalArgumentException 
{

}

Called when a new pointcut expression is set. The expression should be parsed at this point if possible.

This implementation is empty.

 public  void setExpression(String expression) 
{
		this.expression = expression;
		try {
			onSetExpression(expression);
		}
		catch (IllegalArgumentException ex) {
			// Fill in location information if possible.
			if (this.location != null) {
				throw new IllegalArgumentException("Invalid expression at location [" + this.location + "]: " + ex);
			}
			else {
				throw ex;
			}
		}
}

 public  void setLocation(String location) 
{
		this.location = location;
}

Set the location for debugging.