public OGraphElementIterator(
final ODatabaseGraphTx iDatabase, final String iClassName, final boolean iPolymorphic) {
database = iDatabase;
className = iClassName;
underlying =
new ORecordIteratorClass<ODocument>(
(ODatabaseRecord) iDatabase.getUnderlying(),
(ODatabaseRecordAbstract)
((ODatabaseDocumentTx) iDatabase.getUnderlying()).getUnderlying(),
iClassName,
iPolymorphic,
false);
setReuseSameObject(false);
underlying.setReuseSameRecord(false);
}
/**
* Returns the object to use for the operation.
*
* @return
*/
protected T getObject() {
final T object;
if (reusedObject != null) {
// REUSE THE SAME RECORD AFTER HAVING RESETTED IT
object = reusedObject;
object.reset();
} else
// CREATE A NEW ONE
object = (T) database.newInstance(className);
return object;
}
/**
* Tells to the iterator to use the same object for browsing. The object will be reset before
* every use. This improve the performance and reduce memory utilization since it does not create
* a new one for each operation, but pay attention to copy the data of the object once read
* otherwise they will be reset to the next operation.
*
* @param iReuse
* @return @see #isReuseSameObject()
*/
public OGraphElementIterator<T> setReuseSameObject(boolean iReuse) {
reusedObject = (T) database.newInstance(className);
return this;
}