net.ontopia.persistence.proxy
Class QueryCollection<E>

java.lang.Object
  java.util.AbstractCollection<E>
      net.ontopia.persistence.proxy.QueryCollection<E>

All Implemented Interfaces:

Iterable<E>, Collection<E>

public class QueryCollection<E>
extends AbstractCollection<E>

INTERNAL: Immutable Collection implementation that delegates its data retrieval to QueryIFs. This class is very useful in cases where the collection is extremely large.

Field Summary

protected Object[]	params_iterator
protected Object[]	params_size
protected String	query_iterator
protected String	query_size
protected TransactionIF	txn

Constructor Summary

QueryCollection(TransactionIF txn, String query_size, Object[] params_size, String query_iterator, Object[] params_iterator)

Method Summary

boolean	add(E o)
boolean	addAll(Collection<? extends E> c)
void	clear()
boolean	isEmpty()
Iterator<E>	iterator()
boolean	remove(Object o)
boolean	removeAll(Collection<?> c)
boolean	retainAll(Collection<?> c)
int	size()
Object[]	toArray()
<T> T[]	toArray(T[] a)

Methods inherited from class java.util.AbstractCollection

contains, containsAll, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection

equals, hashCode

Field Detail

txn

protected TransactionIF txn

query_size

protected String query_size

query_iterator

protected String query_iterator

params_size

protected Object[] params_size

params_iterator

protected Object[] params_iterator

Constructor Detail

QueryCollection

public QueryCollection(TransactionIF txn,
                       String query_size,
                       Object[] params_size,
                       String query_iterator,
                       Object[] params_iterator)

Method Detail

add

public boolean add(E o)

Specified by:

add in interface Collection<E>

Overrides:

add in class AbstractCollection<E>

addAll

public boolean addAll(Collection<? extends E> c)

Specified by:

addAll in interface Collection<E>

Overrides:

addAll in class AbstractCollection<E>

clear

public void clear()

Specified by:

clear in interface Collection<E>

Overrides:

clear in class AbstractCollection<E>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Collection<E>

Overrides:

isEmpty in class AbstractCollection<E>

iterator

public Iterator<E> iterator()

Specified by:

iterator in interface Iterable<E>

Specified by:

iterator in interface Collection<E>

Specified by:

iterator in class AbstractCollection<E>

remove

public boolean remove(Object o)

Specified by:

remove in interface Collection<E>

Overrides:

remove in class AbstractCollection<E>

removeAll

public boolean removeAll(Collection<?> c)

Specified by:

removeAll in interface Collection<E>

Overrides:

removeAll in class AbstractCollection<E>

retainAll

public boolean retainAll(Collection<?> c)

Specified by:

retainAll in interface Collection<E>

Overrides:

retainAll in class AbstractCollection<E>

size

public int size()

Specified by:

size in interface Collection<E>

Specified by:

size in class AbstractCollection<E>

toArray

public Object[] toArray()

Specified by:

toArray in interface Collection<E>

Overrides:

toArray in class AbstractCollection<E>

toArray

public <T> T[] toArray(T[] a)

Specified by:

toArray in interface Collection<E>

Overrides:

toArray in class AbstractCollection<E>