org.drools.leaps.util
Class Table

java.lang.Object
  org.drools.leaps.util.Table

All Implemented Interfaces:

java.io.Serializable

public class Table

extends java.lang.Object

implements java.io.Serializable

double linked list structure to store objects in the ordered list and iterate over the list for leaps

See Also:

Serialized Form

Field Summary

protected TableRecord	headRecord
protected TableRecord	tailRecord

Constructor Summary

Table(java.util.Comparator comparator)

Method Summary

void	add(java.lang.Object object)
java.lang.Object	bottom()
protected void	clear()
TableIterator	constrainedIteratorFromPositionToTableStart(WorkingMemory workingMemory, ColumnConstraints constraints, java.lang.Object objectAtStart, java.lang.Object objectAtPosition) retrieve iterator over portion of the table data starting at objectAtStart and positioning iterator at objectAtPosition for resumed iterations
boolean	contains(java.lang.Object object)
boolean	isEmpty() indicates if table has any elements
TableIterator	iterator()
TableIterator	iteratorFromPositionToTableEnd(java.lang.Object objectAtStart) retrieve iterator over portion of the table data starting at objectAtStart and positioning iterator at objectAtPosition for resumed iterations
TableIterator	iteratorFromPositionToTableStart(java.lang.Object objectAtStart, java.lang.Object objectAtPosition) retrieve iterator over portion of the table data starting at objectAtStart and positioning iterator at objectAtPosition for resumed iterations
void	remove(java.lang.Object object) Removes object from the table
TableIterator	reverseOrderIterator()
static TableIterator	singleItemIterator(java.lang.Object object)
int	size()
java.lang.Object	top()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

headRecord

protected TableRecord headRecord

tailRecord

protected TableRecord tailRecord

Constructor Detail

Table

public Table(java.util.Comparator comparator)

Method Detail

clear

protected void clear()

add

public void add(java.lang.Object object)

Parameters:

object - to add

remove

public void remove(java.lang.Object object)

Removes object from the table

Parameters:

object - to remove from the table

contains

public boolean contains(java.lang.Object object)

Parameters:

object -

Returns:

indicator of presence of given object in the table

iterator

public TableIterator iterator()

Returns:

TableIterator for this Table

See Also:

TableIterator, IteratorFromPositionToTableStart

reverseOrderIterator

public TableIterator reverseOrderIterator()

constrainedIteratorFromPositionToTableStart

public TableIterator constrainedIteratorFromPositionToTableStart(WorkingMemory workingMemory,
                                                                 ColumnConstraints constraints,
                                                                 java.lang.Object objectAtStart,
                                                                 java.lang.Object objectAtPosition)

retrieve iterator over portion of the table data starting at objectAtStart and positioning iterator at objectAtPosition for resumed iterations

Throws:

TableOutOfBoundException

Parameters:

objectAtStart - - upper boundary of the iteration

objectAtPosition - - starting point of the iteration

Returns:

leaps table iterator

iteratorFromPositionToTableStart

public TableIterator iteratorFromPositionToTableStart(java.lang.Object objectAtStart,
                                                      java.lang.Object objectAtPosition)

retrieve iterator over portion of the table data starting at objectAtStart and positioning iterator at objectAtPosition for resumed iterations

Throws:

TableOutOfBoundException

Parameters:

objectAtStart - - upper boundary of the iteration

objectAtPosition - - starting point of the iteration

Returns:

leaps table iterator

iteratorFromPositionToTableEnd

public TableIterator iteratorFromPositionToTableEnd(java.lang.Object objectAtStart)

retrieve iterator over portion of the table data starting at objectAtStart and positioning iterator at objectAtPosition for resumed iterations

Throws:

TableOutOfBoundException

Parameters:

objectAtStart - - upper boundary of the iteration

Returns:

leaps table iterator

isEmpty

public boolean isEmpty()

indicates if table has any elements

Returns:

empty indicator

toString

public java.lang.String toString()

size

public int size()

top

public java.lang.Object top()

bottom

public java.lang.Object bottom()

singleItemIterator

public static TableIterator singleItemIterator(java.lang.Object object)