com.solarmetric.rd.rop
Class LazyResultList

java.lang.Object
  |
  +--java.util.AbstractCollection
        |
        +--java.util.AbstractList
              |
              +--com.solarmetric.rd.rop.LazyResultList

All Implemented Interfaces:

java.util.Collection, java.util.List, ResultList, java.io.Serializable

public class LazyResultList

extends java.util.AbstractList

implements ResultList

Lazy ResultList implementation. It maintains a soft reference map of the items that we have already instantiated. If we ever resolve all of the values in the input, they will be copied over to a HashMap so that the input can be closed.

Since:

2.2.6

See Also:

Serialized Form

Field Summary

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

LazyResultList(java.lang.Object input, com.solarmetric.rd.rop.ResultObjectProvider rop, int batchSize)

Method Summary

void	checkClosed() Check to see if this ResultList has been closed, and if so, throw a NoSuchElementException.
void	close() Close the list.
boolean	equals(java.lang.Object other)
protected void	finalize()
void	flush(int targetReduction) Internal method to try to flush out all references that are not present elsewhere.
protected void	free()
java.lang.Object	get(int index)
int	getCacheSize()
java.util.Collection	getCacheValues()
int	getInstantiatedCount() Returns the number of objects that are currently instantiated internally in this list.
int	hashCode()
boolean	isClosed() Returns true if the list has been closed.
java.util.Iterator	iterator()
java.util.ListIterator	listIterator()
int	size() Return the size of this List.
java.lang.String	toString()
void	useSoftMap()
void	useWeakMap()
java.lang.Object	writeReplace()

Methods inherited from class java.util.AbstractList

add, add, addAll, clear, indexOf, lastIndexOf, listIterator, remove, removeRange, set, subList

Methods inherited from class java.util.AbstractCollection

addAll, contains, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.List

add, add, addAll, addAll, clear, contains, containsAll, indexOf, isEmpty, lastIndexOf, listIterator, remove, remove, removeAll, retainAll, set, subList, toArray, toArray

Constructor Detail

LazyResultList

public LazyResultList(java.lang.Object input,
                      com.solarmetric.rd.rop.ResultObjectProvider rop,
                      int batchSize)

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class java.util.AbstractCollection

getInstantiatedCount

public int getInstantiatedCount()

Description copied from interface: ResultList

Returns the number of objects that are currently instantiated internally in this list.

Specified by:

getInstantiatedCount in interface ResultList

getCacheSize

public int getCacheSize()

getCacheValues

public java.util.Collection getCacheValues()

get

public java.lang.Object get(int index)

Specified by:

get in interface java.util.List

Specified by:

get in class java.util.AbstractList

flush

public void flush(int targetReduction)

Internal method to try to flush out all references that are not present elsewhere.

useWeakMap

public void useWeakMap()

useSoftMap

public void useSoftMap()

size

public int size()

Return the size of this List. Since at any given time, only some (or none) of the results may be cached, we calculate the size by jumping to the last row in the Result and getting its row index: this will be the correct size, according to the JDBC 2.0 specification.

Specified by:

size in interface java.util.List

Specified by:

size in class java.util.AbstractCollection

checkClosed

public void checkClosed()

Description copied from interface: ResultList

Check to see if this ResultList has been closed, and if so, throw a NoSuchElementException.

Specified by:

checkClosed in interface ResultList

close

public void close()

Description copied from interface: ResultList

Close the list.

Specified by:

close in interface ResultList

finalize

protected void finalize()
                 throws java.lang.Throwable

Overrides:

finalize in class java.lang.Object

java.lang.Throwable

free

protected void free()

iterator

public java.util.Iterator iterator()

Specified by:

iterator in interface java.util.List

Overrides:

iterator in class java.util.AbstractList

listIterator

public java.util.ListIterator listIterator()

Specified by:

listIterator in interface java.util.List

Overrides:

listIterator in class java.util.AbstractList

isClosed

public boolean isClosed()

Description copied from interface: ResultList

Returns true if the list has been closed.

Specified by:

isClosed in interface ResultList

writeReplace

public java.lang.Object writeReplace()
                              throws java.io.ObjectStreamException

java.io.ObjectStreamException

hashCode

public int hashCode()

Specified by:

hashCode in interface java.util.List

Overrides:

hashCode in class java.util.AbstractList

equals

public boolean equals(java.lang.Object other)

Specified by:

equals in interface java.util.List

Overrides:

equals in class java.util.AbstractList