org.basex.query.xquery.expr
Class FTSelect

java.lang.Object
  extended by org.basex.query.ExprInfo
      extended by org.basex.query.xquery.expr.Expr
          extended by org.basex.query.xquery.expr.FTExpr
              extended by org.basex.query.xquery.expr.FTSelect

public final class FTSelect
extends FTExpr

FTSelect expression.

Author:
Workgroup DBIS, University of Konstanz 2005-08, ISC License, Christian Gruen

Nested Class Summary
 
Nested classes/interfaces inherited from class org.basex.query.xquery.expr.Expr
Expr.Return, Expr.Using
 
Field Summary
 Expr[] dist
          Distance occurrences.
 FTPos pos
          Position filter.
 Expr weight
          Weight.
 Expr window
          Window.
 
Fields inherited from class org.basex.query.xquery.expr.FTExpr
expr
 
Constructor Summary
FTSelect(FTExpr e, FTPos u)
          Constructor.
 
Method Summary
 FTExpr comp(XQContext ctx)
          Optimizes and compiles the expression.
 Iter iter(XQContext ctx)
          Evaluates the expression and returns an iterator on the resulting items.
 void plan(Serializer ser)
          Recursively sends the abstract syntax of this expression to the specified serializer.
 java.lang.String toString()
           
 
Methods inherited from class org.basex.query.xquery.expr.FTExpr
uses
 
Methods inherited from class org.basex.query.xquery.expr.Expr
e, i, returned
 
Methods inherited from class org.basex.query.ExprInfo
color, info, name
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

pos

public FTPos pos
Position filter.


window

public Expr window
Window.


dist

public Expr[] dist
Distance occurrences.


weight

public Expr weight
Weight.

Constructor Detail

FTSelect

public FTSelect(FTExpr e,
                FTPos u)
Constructor.

Parameters:
e - expression
u - fulltext selections
Method Detail

iter

public Iter iter(XQContext ctx)
          throws XQException
Description copied from class: Expr
Evaluates the expression and returns an iterator on the resulting items.

Specified by:
iter in class Expr
Parameters:
ctx - query context
Returns:
resulting item
Throws:
XQException - evaluation exception

comp

public FTExpr comp(XQContext ctx)
            throws XQException
Description copied from class: Expr
Optimizes and compiles the expression.

Overrides:
comp in class FTExpr
Parameters:
ctx - query context
Returns:
optimized Expression
Throws:
XQException - evaluation exception

plan

public void plan(Serializer ser)
          throws java.io.IOException
Description copied from class: ExprInfo
Recursively sends the abstract syntax of this expression to the specified serializer.

Overrides:
plan in class FTExpr
Parameters:
ser - serializer
Throws:
java.io.IOException - exception

toString

public java.lang.String toString()
Specified by:
toString in class ExprInfo