@Override
protected void bindRule( LinkedRuleBuilder linkedRuleBuilder, Attributes attributes )
throws Exception
{
int paramIndex = Integer.parseInt( attributes.getValue( "paramnumber" ) );
CallParamBuilder builder = linkedRuleBuilder.callParam().ofIndex( paramIndex );
String attributeName = attributes.getValue( "attrname" );
String fromStack = attributes.getValue( "from-stack" );
String stackIndex = attributes.getValue( "stack-index" );
if ( attributeName == null )
{
if ( stackIndex != null )
{
builder.withStackIndex( Integer.parseInt( stackIndex ) );
}
else if ( fromStack != null )
{
builder.fromStack( Boolean.valueOf( fromStack ).booleanValue() );
}
}
else
{
if ( fromStack == null )
{
builder.fromAttribute( attributeName );
}
else
{
// specifying both from-stack and attribute name is not allowed
throw new RuntimeException( "Attributes from-stack and attrname cannot both be present." );