org.datanucleus.store.rdbms.query

Class AbstractRDBMSQueryResult

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractList<E>

org.datanucleus.store.query.AbstractQueryResult

org.datanucleus.store.rdbms.query.AbstractRDBMSQueryResult

All Implemented Interfaces:

Serializable, Iterable, Collection, List, org.datanucleus.store.query.QueryResult

Direct Known Subclasses:

ForwardQueryResult, ScrollableQueryResult

public abstract class AbstractRDBMSQueryResult
extends org.datanucleus.store.query.AbstractQueryResult

Abstract representation of a QueryResult for RDBMS queries. Based on the assumption that we have a JDBC ResultSet, and we are extracting the results using a ResultObjectFactory.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected Map<Object,Map<Integer,Object>>	bulkLoadedValueByMemberNumber
protected boolean	closeStatementWithResultSet Default to closing the statement when closing the resultSet, but allow override.
protected ResultObjectFactory	rof ResultObjectFactory for converting the result set into objects.
protected ResultSet	rs The ResultSet containing the results.

Fields inherited from class org.datanucleus.store.query.AbstractQueryResult

closed, connectionListeners, loadResultsAtCommit, query, resultSizeMethod, size

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

Constructors

Constructor and Description
AbstractRDBMSQueryResult(org.datanucleus.store.query.Query query, ResultObjectFactory rof, ResultSet rs) Constructor of the result from a Query.

Method Summary

Modifier and Type	Method and Description
void	close() Method to close the results, meaning that they are inaccessible after this point.
protected void	closeResults() Internal method to close the ResultSet.
void	disconnect() Method to disconnect the results from the ExecutionContext, meaning that thereafter it just behaves like a List.
boolean	equals(Object o)
int	hashCode()
abstract void	initialise()
void	registerMemberBulkResultSet(IteratorStatement iterStmt, ResultSet rs)
void	setCloseStatementWithResultSet(boolean flag)

Methods inherited from class org.datanucleus.store.query.AbstractQueryResult

add, add, addAll, addConnectionListener, assertIsOpen, clear, closingConnection, contains, containsAll, get, getSizeUsingMethod, indexOf, isEmpty, isOpen, iterator, lastIndexOf, listIterator, remove, set, size, subList, toArray, toArray

Methods inherited from class java.util.AbstractList

listIterator, removeRange

Methods inherited from class java.util.AbstractCollection

addAll, remove, removeAll, retainAll, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection

addAll, parallelStream, remove, removeAll, removeIf, retainAll, spliterator, stream

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface java.util.List

addAll, remove, removeAll, replaceAll, retainAll, sort, spliterator

Field Detail

rs

protected ResultSet rs

The ResultSet containing the results.

rof

protected ResultObjectFactory rof

ResultObjectFactory for converting the result set into objects.

bulkLoadedValueByMemberNumber

protected Map<Object,Map<Integer,Object>> bulkLoadedValueByMemberNumber

closeStatementWithResultSet

protected boolean closeStatementWithResultSet

Default to closing the statement when closing the resultSet, but allow override.

Constructor Detail

AbstractRDBMSQueryResult

public AbstractRDBMSQueryResult(org.datanucleus.store.query.Query query,
                                ResultObjectFactory rof,
                                ResultSet rs)

Constructor of the result from a Query.

Parameters:

query - The Query

rof - The factory to retrieve results from

rs - The ResultSet from the Query Statement

Method Detail

setCloseStatementWithResultSet

public void setCloseStatementWithResultSet(boolean flag)

registerMemberBulkResultSet

public void registerMemberBulkResultSet(IteratorStatement iterStmt,
                                        ResultSet rs)

initialise

public abstract void initialise()
                         throws SQLException

Throws:

SQLException

disconnect

public void disconnect()

Method to disconnect the results from the ExecutionContext, meaning that thereafter it just behaves like a List. All remaining results are read in at this point (unless selected not to be).

Specified by:

disconnect in interface org.datanucleus.store.query.QueryResult

Overrides:

disconnect in class org.datanucleus.store.query.AbstractQueryResult

close

public void close()

Method to close the results, meaning that they are inaccessible after this point.

Specified by:

close in interface org.datanucleus.store.query.QueryResult

Overrides:

close in class org.datanucleus.store.query.AbstractQueryResult

closeResults

protected void closeResults()

Internal method to close the ResultSet.

Specified by:

closeResults in class org.datanucleus.store.query.AbstractQueryResult

equals

public boolean equals(Object o)

Specified by:

equals in interface Collection

Specified by:

equals in interface List

Specified by:

equals in class org.datanucleus.store.query.AbstractQueryResult

hashCode

public int hashCode()

Specified by:

hashCode in interface Collection

Specified by:

hashCode in interface List

Overrides:

hashCode in class org.datanucleus.store.query.AbstractQueryResult