org.basex.query.expr
Class Except

java.lang.Object
  org.basex.query.ExprInfo
      org.basex.query.expr.Expr
          org.basex.query.expr.Arr
              org.basex.query.expr.Except

public final class Except
extends Arr

Except Expression.

Author:

Workgroup DBIS, University of Konstanz 2005-09, ISC License, Christian Gruen, Dennis Stratmann

Field Summary

Fields inherited from class org.basex.query.expr.Arr

expr

Constructor Summary

Except(Expr[] e)
Constructor.

Method Summary

NodeIter	iter(QueryContext ctx) Evaluates the expression and returns an iterator on the resulting items.
java.lang.String	toString()

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

comp, duplicates, indexEquivalent, plan, removable, remove, uses

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

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

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

Constructor Detail

Except

public Except(Expr[] e)

Constructor.

Parameters:

e - expression list

Method Detail

iter

public NodeIter iter(QueryContext ctx)
              throws QueryException

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.

Overrides:

iter in class Expr

Parameters:

ctx - query context

Returns:

resulting item

Throws:

QueryException - evaluation exception

toString

public java.lang.String toString()

Specified by:

toString in class ExprInfo