Package lupos.engine.operators.multiinput.join

Examples of lupos.engine.operators.multiinput.join.Join.removePrecedingOperator()

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    for (final BasicOperator toMove : unionOperands) {
      Join joinNew;
      if (firstTime) {
        // use existing join operator
        joinNew = join;
        joinNew.removePrecedingOperator(union);
        firstTime = false;
      } else {
        // clone join operator plus its other operands
        joinNew = new Join();
        added.add(joinNew);
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          filter.setIntersectionVariables(bo.getUnionVariables());
          filter.setUnionVariables(bo.getUnionVariables());
          // we assume that
          filter.setSucceedingOperators(bo.getSucceedingOperators());
          bo.setSucceedingOperator(new OperatorIDTuple(filter, 0));
          join.removePrecedingOperator(bo);
          join.addPrecedingOperator(filter);
          filter.setPrecedingOperator(bo);
          afterJoin = false;
          added.add(filter);
        } catch (final ParseException e) {
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    for (final BasicOperator bo : add.getPrecedingOperators()) {
      bo.removeSucceedingOperator(add);
      bo.addSucceedingOperators(add.getSucceedingOperators());
      join.addPrecedingOperator(bo);
    }
    join.removePrecedingOperator(add);
    join.getIntersectionVariables().remove(add.getVar());
    // must add be put after the join?
    if (afterJoin) {
      add.setSucceedingOperators(join.getSucceedingOperators());
      add.setPrecedingOperator(join);
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      final BasicOperator rootOperator) {
    final Collection<BasicOperator> deleted = new LinkedList<BasicOperator>();
    final Collection<BasicOperator> added = new LinkedList<BasicOperator>();
    final TriggerOneTime trigger = (TriggerOneTime) mso.get("trigger");
    final Join join = (Join) mso.get("join");
    join.removePrecedingOperator(trigger);
    if (join.getPrecedingOperators().size() <= 1) {
      // remove join
      for (final OperatorIDTuple oit : join.getSucceedingOperators()) {
        oit.getOperator().removePrecedingOperator(join);
      }
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      pre.addSucceedingOperator(new OperatorIDTuple(join, index));
      pre.removeSucceedingOperator(genAdd);
      join.addPrecedingOperator(pre);
    }

    join.removePrecedingOperator(genAdd);
    join.setSucceedingOperator(new OperatorIDTuple(genAdd, 0));

    genAdd.setPrecedingOperator(join);
    genAdd.setSucceedingOperators(succs);
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                        bo.addPrecedingOperator(sip_op);
                      } else {
                        sip_op.addSucceedingOperators(bo.getSucceedingOperators());
                        sip_op.setPrecedingOperator(bo);
                        bo.setSucceedingOperator(new OperatorIDTuple(sip_op, 0));
                        join.removePrecedingOperator(bo);
                        join.addPrecedingOperator(sip_op);
                      }
                    }
                  }
                }
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        pre = pres.get(i);
        pre.addSucceedingOperator(new OperatorIDTuple(join, index));
        pre.removeSucceedingOperator(replaceLit);
        join.addPrecedingOperator(pre);
      }
      join.removePrecedingOperator(replaceLit);
      deleted.add(replaceLit);
    }

    // Insert the new ReplaceLit under the Join
    // (only if there is not already an equivalent ReplaceLit!)
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