org.basex.query.ft
Class FTIndex

java.lang.Object
  org.basex.query.ExprInfo
      org.basex.query.expr.Expr
          org.basex.query.ft.FTExpr
              org.basex.query.ft.FTIndex

public final class FTIndex
extends FTExpr

This expression retrieves the ids of indexed fulltext terms.

Author:

Workgroup DBIS, University of Konstanz 2005-09, ISC License, Sebastian Gath, Christian Gruen

Field Summary

Fields inherited from class org.basex.query.ft.FTExpr

expr

Constructor Summary

FTIndex(Data d, byte[] t)
Constructor.

Method Summary

FTNodeIter	iter(QueryContext 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.ft.FTExpr

color, comp, indexEquivalent, remove, returned, uses

Methods inherited from class org.basex.query.expr.Expr

addText, atomic, checkCtx, checkDbl, checkItr, duplicates, e, ebv, i, indexAccessible, removable, sameAs, size, test

Methods inherited from class org.basex.query.ExprInfo

info, name

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

FTIndex

public FTIndex(Data d,
               byte[] t)

Constructor.

Parameters:

d - data reference

t - token

Method Detail

iter

public FTNodeIter iter(QueryContext ctx)

Description copied from class: Expr

Evaluates the expression and returns an iterator on the resulting items. If this method is not overwritten, Expr.atomic(org.basex.query.QueryContext) must be implemented.

Specified by:

iter in class FTExpr

Parameters:

ctx - query context

Returns:

resulting item

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