private final void end(QueryPart part) {
if (visitParts != null) {
for (VisitListener listener : visitListeners) listener.visitEnd(visitContext);
if (visitParts.removeLast() != part)
throw new RuntimeException("Mismatch between visited query parts");
}
}
private final QueryPart start(QueryPart part) {
visitParts.addLast(part);
for (VisitListener listener : visitListeners) {
listener.visitStart(visitContext);
}
return visitParts.peekLast();
}
@Override
public final C start(Clause clause) {
if (clause != null && visitClauses != null) {
visitClauses.addLast(clause);
for (VisitListener listener : visitListeners) listener.clauseStart(visitContext);
}
return (C) this;
}
private final QueryPart start(QueryPart part) {
if (visitParts != null) {
visitParts.addLast(part);
for (VisitListener listener : visitListeners) listener.visitStart(visitContext);
return visitParts.peekLast();
} else {
return part;
}
}
@Override
public final C end(Clause clause) {
if (clause != null && visitClauses != null) {
for (VisitListener listener : visitListeners) listener.clauseEnd(visitContext);
if (visitClauses.removeLast() != clause)
throw new IllegalStateException("Mismatch between visited clauses!");
}
return (C) this;
}