Searchstate question - declarative vs java

Hello guys, we are running WebCenter SItes 11G R1, and we are trying to "migrate" some search declarative xml code, into the API:

From this:

       <searchstate:create name="ss" op="and"/>
       <searchstate:addhasancestorconstraint    name="ss" 
                                                immediateonly="true" 
                                                assetid='<%=ics.GetVar("categoryId")%>' 
                                                assettype='<%=ics.GetVar("categoryType")%>'  
                                                bucket="ss2" />            
       <assetset:setsearchedassets name="foundProducts" constraint="ss" assettypes="product_C"/> 
       <assetset:getassetlist name="foundProducts" listvarname="productResultList" immediateonly="true"/>
       <ics:listloop listname="productResultList">
              …
              …
       </ics:listloop>

Into This API code:

SearchState ss = new Searchstate();
ss.addHasAncestorConstraint("ss2", ics.GetVar("categoryId"), <%=ics.GetVar("categoryType")%>, true);
AssetSet assetSet = new AssetSet(ics);
assetSet.setSearchedAssets("SideId?", "ILits", ss, true);