Class wais.WAISBoolOp 
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Class wais.WAISBoolOp 

java.lang.Object
   |
   +----query.ExpNode
           |
           +----wais.WAISBoolOp
public class WAISBoolOp
extends ExpNode
implements SourceNode
An ExpNode that represents a Boolean Operator in a WAIS query expression. Each WAISBoolOp has two children, which are the operands of the WAISBoolOp and one property: operator - The operator (e.g., and, or, etc.)

Constructor Index

o WAISBoolOp(Query, String)
Construct a new WAISBoolOp

Method Index

o GetOperator()
Return the string that is the operator for this WAISBoolOp
o RankBy(Document)
This is a slot to do some primitive ranking on this sub-tree.
o Unparse()
Return the string that represents the unparsed representation of the sub-tree rooted at this WAISBoolOp.

Constructors

o WAISBoolOp 
  public WAISBoolOp(Query query,
                    String operator)
Construct a new WAISBoolOp
Parameters:
query - The query context of this WAISBoolOp
operator - The operator (e.g., and , or)

Methods

o GetOperator 
  public String GetOperator()
Return the string that is the operator for this WAISBoolOp
o Unparse 
  public String Unparse()
Return the string that represents the unparsed representation of the sub-tree rooted at this WAISBoolOp.
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 
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