Examples of org.apache.openjpa.lib.rop.MergedResultObjectProvider

org.apache.openjpa.lib.rop.MergedResultObjectProvider
A result object provider that merges multiple result object provider delegates. Support exists for maintaining ordering of the internally held results, provided that each of the individual results is itself ordered. @author Abe White @author Marc Prud'hommeaux

                rops[i] = _executors[i].executeQuery(q, params, ropRange);


            boolean[] asc = _executors[0].getAscending(q);
            ResultObjectProvider rop;
            if (asc.length == 0)
                rop = new MergedResultObjectProvider(rops);
            else
                rop = new OrderingMergedResultObjectProvider(rops, asc,
                    _executors, q, params);


            // if there is a lower bound, wrap in range rop

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        List<SliceStoreManager> targets = getTargets(fetch);
        ResultObjectProvider[] tmp = new ResultObjectProvider[targets.size()];
        for (SliceStoreManager slice : targets) {
            tmp[i++] = slice.executeExtent(meta, subclasses, fetch);
        }
        return new MergedResultObjectProvider(tmp);
    }

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          } else if (isAscending) {
              result = new OrderingMergedResultObjectProvider(tmp, ascending, 
                  (Executor[])executors.toArray(new Executor[executors.size()]),
                  q, params);
          } else {
              result = new MergedResultObjectProvider(tmp);
          }
          if (hasRange)
              result = new RangeResultObjectProvider(result, 
                      q.getContext().getStartRange(), 
                      q.getContext().getEndRange());

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                        rops[i] = new PagingResultObjectProvider(sel,
                            mappings[i], this, jfetch, paged, Long.MAX_VALUE);
                }
                if (rops.length == 1)
                    return rops[0];
                return new MergedResultObjectProvider(rops);
            }


            // perform a union on all independent classes
            Union union = _sql.newUnion(mappings.length);
            union.setLRS(true);

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            }
        }


        if (rops != null) {
            if (exps[0].ascending.length == 0)
                rop = new MergedResultObjectProvider(rops);
            else {
                rop = new OrderingMergedResultObjectProvider(rops,
                    exps[0].ascending, ex, this, params);
            }
        }

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                        rops[i] = new PagingResultObjectProvider(sel,
                            mappings[i], this, jfetch, paged, Long.MAX_VALUE);
                }
                if (rops.length == 1)
                    return rops[0];
                return new MergedResultObjectProvider(rops);
            }


            // perform a union on all independent classes
            Union union = _sql.newUnion(mappings.length);
            union.setLRS(true);

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                rops[i] = _executors[i].executeQuery(q, params, ropRange);


            boolean[] asc = _executors[0].getAscending(q);
            ResultObjectProvider rop;
            if (asc.length == 0)
                rop = new MergedResultObjectProvider(rops);
            else
                rop = new OrderingMergedResultObjectProvider(rops, asc,
                    _executors, q, params);


            // if there is a lower bound, wrap in range rop

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                        rops[i] = new PagingResultObjectProvider(sel,
                            mappings[i], this, jfetch, paged, Long.MAX_VALUE);
                }
                if (rops.length == 1)
                    return rops[0];
                return new MergedResultObjectProvider(rops);
            }


            // perform a union on all independent classes
            Union union = _sql.newUnion(mappings.length);
            union.setLRS(true);

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                        rops[i] = new PagingResultObjectProvider(sel,
                            mappings[i], this, jfetch, paged, Long.MAX_VALUE);
                }
                if (rops.length == 1)
                    return rops[0];
                return new MergedResultObjectProvider(rops);
            }


            // perform a union on all independent classes
            Union union = _sql.newUnion(mappings.length);
            union.setLRS(true);

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                rops[i] = _executors[i].executeQuery(q, params, ropRange);


            boolean[] asc = _executors[0].getAscending(q);
            ResultObjectProvider rop;
            if (asc.length == 0)
                rop = new MergedResultObjectProvider(rops);
            else
                rop = new OrderingMergedResultObjectProvider(rops, asc,
                    _executors, q, params);


            // if there is a lower bound, wrap in range rop

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