/**
* This method returns the first found preceding operator, which is connected to this operator
* with the given id
*
* @param id the id of the OperatorIDTuple
* @return the first found preceding operator, which is connected to this operator with the given
* id, otherwise null
*/
public BasicOperator getPrecedingOperatorWithID(final int id) {
for (BasicOperator prec : this.getPrecedingOperators()) {
if (prec.getOperatorIDTuple(this).getId() == id) {
return prec;
}
}
return null;
}
protected void replace(HashMap<Class<?>, HashSet<BasicOperator>> _startNodes) {
// remove obsolete connections...
int[] _label_a = null;
int _label_a_count = 0;
_label_a = new int[this.o1.length];
for (lupos.engine.operators.BasicOperator _parent : this.o1) {
_label_a[_label_a_count] = _parent.getOperatorIDTuple(this.p).getId();
_label_a_count += 1;
_parent.removeSucceedingOperator(this.p);
this.p.removePrecedingOperator(_parent);
}
this.p.removeSucceedingOperator(this.o2);
this.o2.removePrecedingOperator(this.p);
// add new operators...
lupos.rif.operator.PredicatePattern[] p_new = null;
p_new = new lupos.rif.operator.PredicatePattern[this.o1.length];
for (this._dim_0 = 0; this._dim_0 < p_new.length; this._dim_0 += 1) {
p_new[this._dim_0] = new lupos.rif.operator.PredicatePattern();
}
// add new connections...
for (this._dim_0 = 0; this._dim_0 < this.o1.length; this._dim_0 += 1) {
this.o1[this._dim_0].addSucceedingOperator(p_new[this._dim_0]);
p_new[this._dim_0].addPrecedingOperator(this.o1[this._dim_0]);
}
_label_a_count = 0;
for (lupos.rif.operator.PredicatePattern _parent : p_new) {
_parent.addSucceedingOperator(new OperatorIDTuple(this.o2, _label_a[_label_a_count]));
this.o2.addPrecedingOperator(_parent);
_label_a_count += 1;
}
// delete unreachable operators...
this.deleteOperatorWithoutParentsRecursive(this.p, _startNodes);
// additional replace method code...
for (lupos.rif.operator.PredicatePattern tmp_p : p_new) {
tmp_p.getSucceedingOperators().get(0).setId(id);
tmp_p.setUnionVariables(
new java.util.HashSet<lupos.datastructures.items.Variable>(this.p.getUnionVariables()));
tmp_p.setIntersectionVariables(
new java.util.HashSet<lupos.datastructures.items.Variable>(
this.p.getIntersectionVariables()));
tmp_p.setPredicateName(this.p.getPredicateName());
tmp_p.setPatternItems(this.p.getPatternItems());
}
}