@Override
public int hashCode() {
final int prime = 31;
int result = super.hashCode();
result = prime * result + (openQuery ? 1231 : 1237);
result = prime * result + ((queryElement == null) ? 0 : queryElement.hashCode());
result = prime * result + ((tupleSource == null) ? 0 : tupleSource.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null) return false;
if (getClass() != obj.getClass()) return false;
QueryElementNode other = (QueryElementNode) obj;
if (openQuery != other.openQuery) return false;
if (queryElement == null) {
if (other.queryElement != null) return false;
} else if (!queryElement.equals(other.queryElement)) return false;
if (tupleSource == null) {
if (other.tupleSource != null) return false;
} else if (!tupleSource.equals(other.tupleSource)) return false;
return true;
}