ExpressionFactory f = ctx.getExpressionFactory();
ValueExpression valueExpression = f.createValueExpression(ctx, this.value, type);
if (ExternalSpecifications.isUnifiedELAvailable())
{
valueExpression = new TagValueExpressionUEL(this, valueExpression);
}
else
{
valueExpression = new TagValueExpression(this, valueExpression);
}