lempinen.neatseeker.core
Class PointerList

java.lang.Object
  |
  +--java.util.AbstractCollection
        |
        +--java.util.AbstractList
              |
              +--java.util.Vector
                    |
                    +--lempinen.neatseeker.core.PointerList

All Implemented Interfaces:

java.lang.Cloneable, java.util.Collection, java.util.List, java.io.Serializable

public class PointerList

extends java.util.Vector

implements java.io.Serializable

Represents a list of Pointers for a particular keyword. OK, if you read the description of the Bucket class, you may have thought that the TreeMaps contain Pointers to the target documents. Well, I lied.

In fact, every keyword in a Bucket points to a PointerList, which is, well, a list of Pointers. Whereas a Pointer points to a single Target, a PointerList contains all of the Pointers to different Targets.

Therefore, when you ask a Bucket for the PointerList for the key Microsoft, for example, you get a list of Pointers to all the documents that contain the word Microsoft. Amazing, no?

PointerList in itself is little more than a Vector that contains the individual Pointers. It provides a single method for adding a new Entry to the list, as well as functions for performing arithmetic on the PointerLists.

Version:

$Id: PointerList.java,v 1.1 2000/09/23 11:21:23 lempinen Exp $

Author:

Sami Lempinen

See Also:

Pointer, Serialized Form

Fields inherited from class java.util.Vector

capacityIncrement, elementCount, elementData, serialVersionUID

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

PointerList()

Method Summary

void	addEntry(Entry entry)
protected Pointer	checkProximity(Pointer p1, Pointer p2, long proximity, boolean ordered) Check the word sequences in two Pointers for proximity.
PointerList	not(PointerList another) Implements the NOT logical operator for two PointerLists.
PointerList	proximity(PointerList another, long proximity, boolean ordered) Performs a proximity search between two PointerLists.
PointerList	union(PointerList another) Returns the common elements in the two PointerLists.

Methods inherited from class java.util.Vector

add, add, addAll, addAll, addElement, capacity, clear, clone, contains, containsAll, copyInto, elementAt, elements, ensureCapacity, ensureCapacityHelper, equals, firstElement, get, hashCode, indexOf, indexOf, insertElementAt, isEmpty, lastElement, lastIndexOf, lastIndexOf, readObject, remove, remove, removeAll, removeAllElements, removeElement, removeElementAt, removeRange, retainAll, set, setElementAt, setSize, size, subList, toArray, toArray, toString, trimToSize, writeObject

Methods inherited from class java.util.AbstractList

iterator, listIterator, listIterator

Methods inherited from class java.lang.Object

, finalize, getClass, notify, notifyAll, registerNatives, wait, wait, wait

Methods inherited from interface java.util.List

iterator, listIterator, listIterator

Constructor Detail

PointerList

public PointerList()

Method Detail

addEntry

public void addEntry(Entry entry)

union

public PointerList union(PointerList another)

Returns the common elements in the two PointerLists.

proximity

public PointerList proximity(PointerList another,
                             long proximity,
                             boolean ordered)

Performs a proximity search between two PointerLists.

checkProximity

protected Pointer checkProximity(Pointer p1,
                                 Pointer p2,
                                 long proximity,
                                 boolean ordered)

Check the word sequences in two Pointers for proximity.

not

public PointerList not(PointerList another)

Implements the NOT logical operator for two PointerLists.