{
public StreamedAccumulatedBoundariesExpressionGraph()
{
super( SearchOrder.Depth );
ElementExpression sink = new BoundariesElementExpression( ElementCapture.Secondary );
this.arc(
new BoundariesElementExpression( ElementCapture.Primary ),
PathScopeExpression.ALL_NON_BLOCKING,
sink
);
this.arc(
new BoundariesElementExpression(),
PathScopeExpression.ANY_BLOCKING,
sink
);
}