private void processDependency(Dependency dependency) {
assignAuthoritativeSources(dependency);
aliasAssigner.assignAliases(dependency);
variableFinder.findVariables(
dependency, task.getSource().getTableNames(), task.getAuthoritativeSources());
checker.checkVariables(dependency);
equivalenceClassFinder.findVariableEquivalenceClasses(dependency);
}
public void addDC(Dependency d) {
if (!(d.getConclusion() instanceof NullFormula)) {
throw new ParserException("DC must have no conclusion");
}
IDatabase source = task.getSource();
List<String> sourceTables = source.getTableNames();
IDatabase target = task.getTarget();
List<String> targetTables = target.getTableNames();
checkAtomsForDCs(sourceTables, targetTables, d.getPremise());
this.dcs.add(d);
}
public void apply(CellChanges cellChanges, EGTask task) {
intitializeOperators(task);
IDatabase dirtyTarget = task.getTarget();
if (task.getConfiguration().isCloneTargetSchema()) {
String dirtySuffix = BartUtility.getDirtyCloneSuffix(task);
DBMSDB target = (DBMSDB) task.getTarget();
try {
databaseManager.removeClone(target, dirtySuffix);
} catch (Exception e) {
}
dirtyTarget = databaseManager.cloneTarget(target, dirtySuffix);
task.setDirtyTarget(dirtyTarget);
}
for (ICellChange cellChange : cellChanges.getChanges()) {
cellUpdater.execute(new CellRef(cellChange.getCell()), cellChange.getNewValue(), dirtyTarget);
}
}
private void assignAuthoritativeSources(Dependency dependency) {
for (IFormulaAtom formulaAtom : dependency.getPremise().getAtoms()) {
if (!(formulaAtom instanceof RelationalAtom)) {
continue;
}
TableAlias tableAlias = ((RelationalAtom) formulaAtom).getTableAlias();
if (task.getAuthoritativeSources().contains(tableAlias.getTableName())) {
tableAlias.setAuthoritative(true);
}
}
}
// final callback method for processing tgds
public void processDependencies() {
for (Dependency dc : dcs) {
processDependency(dc);
}
task.setDCs(dcs);
}