org.jpox.store.query
Class InsensitiveQueryResult

java.lang.Object
  java.util.AbstractCollection<E>
      java.util.AbstractList
          org.jpox.store.query.AbstractQueryResult
              org.jpox.store.query.InsensitiveQueryResult

All Implemented Interfaces:

java.io.Serializable, java.lang.Iterable, java.util.Collection, java.util.List, Queryable, QueryResult

public final class InsensitiveQueryResult
extends AbstractQueryResult
implements QueryResult, java.io.Serializable

Lazy collection results from a Query with the ResultSet insensitive to direction. The actual result elements are only loaded when accessed. Once a result has been loaded it will be stored in a local cache for any subsequent access.

Version:

$Revision: 1.19 $

See Also:

Serialized Form

Field Summary

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

closed, LOCALISER, qs, query, rof, rs

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

InsensitiveQueryResult(QueryExpression qs, Query query, Query.ResultObjectFactory rof, java.sql.ResultSet rs, java.util.Collection candidates)
Constructor of the result from a Query.

Method Summary

void	close() Method to close the results.
void	closingConnection() Inform the query result that the connection is being closed so perform any operations now, or rest in peace.
boolean	equals(java.lang.Object o) Equality operator for QueryResults.
java.lang.Object	get(int index) Method to retrieve a particular element from the list.
protected java.lang.Object	getObjectForIndex(int index) Accessor for the result object at an index.
boolean	isEmpty() Returns true if this collection contains no elements.
java.util.Iterator	iterator() Accessor for an iterator for the results.
java.util.ListIterator	listIterator() Accessor for an iterator for the results.
int	size() Method to return the size of the result set.

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

add, add, addAll, assertIsOpen, clear, closeResultSet, contains, containsAll, hashCode, indexOf, isOpen, lastIndexOf, newQueryStatement, newQueryStatement, newResultObjectFactory, remove, set, 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 org.jpox.store.query.Queryable

newQueryStatement, newQueryStatement, newResultObjectFactory

Methods inherited from interface java.util.Collection

add, addAll, clear, contains, containsAll, hashCode, remove, removeAll, retainAll, toArray, toArray

Methods inherited from interface java.util.List

addAll, remove, removeAll, retainAll

Constructor Detail

InsensitiveQueryResult

public InsensitiveQueryResult(QueryExpression qs,
                              Query query,
                              Query.ResultObjectFactory rof,
                              java.sql.ResultSet rs,
                              java.util.Collection candidates)

Constructor of the result from a Query.

Parameters:

qs - The Query Statement

query - The Query

rof - The factory to retrieve results from

rs - The ResultSet from the Query Statement

candidates - the Candidates collection. Pass this argument only when distinct = false

Method Detail

getObjectForIndex

protected java.lang.Object getObjectForIndex(int index)

Accessor for the result object at an index. If the object has already been processed will return that object, otherwise will retrieve the object using the factory.

Parameters:

index - The list index position

Returns:

The result object

close

public void close()

Method to close the results.

Specified by:

close in interface QueryResult

Overrides:

close in class AbstractQueryResult

closingConnection

public void closingConnection()

Inform the query result that the connection is being closed so perform any operations now, or rest in peace.

Specified by:

closingConnection in interface QueryResult

iterator

public java.util.Iterator iterator()

Accessor for an iterator for the results.

Specified by:

iterator in interface java.lang.Iterable

Specified by:

iterator in interface java.util.Collection

Specified by:

iterator in interface java.util.List

Specified by:

iterator in class AbstractQueryResult

Returns:

The iterator

listIterator

public java.util.ListIterator listIterator()

Accessor for an iterator for the results.

Specified by:

listIterator in interface java.util.List

Specified by:

listIterator in class AbstractQueryResult

Returns:

The iterator

equals

public boolean equals(java.lang.Object o)

Equality operator for QueryResults. Overrides the AbstractList implementation since that uses size() and iterator() and that would cause problems when closed.

Specified by:

equals in interface java.util.Collection

Specified by:

equals in interface java.util.List

Specified by:

equals in class AbstractQueryResult

Parameters:

o - The object to compare against

Returns:

Whether they are equal

get

public java.lang.Object get(int index)

Method to retrieve a particular element from the list.

Specified by:

get in interface java.util.List

Specified by:

get in class AbstractQueryResult

Parameters:

index - The index of the element

Returns:

The element at index

isEmpty

public boolean isEmpty()

Returns true if this collection contains no elements.

Checks if the result set is empty.

Specified by:

isEmpty in interface java.util.Collection

Specified by:

isEmpty in interface java.util.List

Specified by:

isEmpty in interface Queryable

Specified by:

isEmpty in class AbstractQueryResult

Returns:

true if this collection contains no elements.

size

public int size()

Method to return the size of the result set.

Specified by:

size in interface java.util.Collection

Specified by:

size in interface java.util.List

Specified by:

size in class AbstractQueryResult

Returns:

The size of the result set.