org.basex.query.up
Class Rename

java.lang.Object
  extended by org.basex.query.ExprInfo
      extended by org.basex.query.expr.Expr
          extended by org.basex.query.expr.Arr
              extended by org.basex.query.up.Update
                  extended by org.basex.query.up.Rename

public final class Rename
extends Update

Rename expression.

Author:
Workgroup DBIS, University of Konstanz 2005-10, ISC License, Lukas Kircher

Nested Class Summary
 
Nested classes/interfaces inherited from class org.basex.query.expr.Expr
Expr.Use
 
Field Summary
 
Fields inherited from class org.basex.query.expr.Arr
expr
 
Constructor Summary
Rename(Expr tg, Expr n)
          Constructor.
 
Method Summary
 Seq atomic(QueryContext ctx)
          Evaluates the expression and returns the resulting item or a null reference.
 String toString()
           
 
Methods inherited from class org.basex.query.up.Update
uses
 
Methods inherited from class org.basex.query.expr.Arr
comp, duplicates, indexEquivalent, plan, removable, remove
 
Methods inherited from class org.basex.query.expr.Expr
addText, checkCtx, checkDbl, checkItr, e, ebv, i, indexAccessible, iter, returned, sameAs, size, test, v
 
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

Rename

public Rename(Expr tg,
              Expr n)
Constructor.

Parameters:
tg - target expression
n - new name expression
Method Detail

atomic

public Seq atomic(QueryContext ctx)
           throws QueryException
Description copied from class: Expr
Evaluates the expression and returns the resulting item or a null reference. If this method is not overwritten, Expr.iter(org.basex.query.QueryContext) must be implemented.

Overrides:
atomic in class Expr
Parameters:
ctx - query context
Returns:
iterator
Throws:
QueryException - query exception

toString

public String toString()
Specified by:
toString in class ExprInfo