Class wais.WAISProxOp 
All Packages  Class Hierarchy  This Package  Previous  Next  Index

Class wais.WAISProxOp 

java.lang.Object
   |
   +----query.ExpNode
           |
           +----wais.WAISProxOp
public class WAISProxOp
extends ExpNode
implements SourceNode
An ExpNode that represents a proximity operatory in a WAIS query expression. Each WAISProxOp has two children, which are the operands of the proximity operator and two properties: - ordered - a boolean determining whether word order counts in the proximity. - unit - the "number of words" value for the proximity.

Constructor Index

o WAISProxOp(Query, boolean, int)
Construct a new WAISProxOp.

Method Index

o Ordered_p()
Predicate to determine whether word order matters for the proximity.
o ProxDistance()
Return the proximity distance value.
o RankBy(Document)
This is a slot to do some primitive ranking on this sub-tree.
o Unparse()
Return the string the represents the unparsed representation of the sub-tree rooted at the WAISProxOp

Constructors

o WAISProxOp 
  public WAISProxOp(Query query,
                    boolean ordered,
                    int unit)
Construct a new WAISProxOp.
Parameters:
query - The query context of the proximity operator
ordered - A boolean determining whether word order matters
unit - The "number of words between" value for the proximity.

Methods

o Ordered_p 
  public boolean Ordered_p()
Predicate to determine whether word order matters for the proximity.
o ProxDistance 
  public int ProxDistance()
Return the proximity distance value.
o Unparse 
  public String Unparse()
Return the string the represents the unparsed representation of the sub-tree rooted at the WAISProxOp
Overrides:
Unparse in class ExpNode
o RankBy 
  public float RankBy(Document doc)
This is a slot to do some primitive ranking on this sub-tree. Unimplemented now except for the recursion
Parameters:
doc - The document to rank using this sub-tree 
All Packages  Class Hierarchy  This Package  Previous  Next  Index