org.basex.query.ft
Class FTMildNot

java.lang.Object
  extended by org.basex.data.ExprInfo
      extended by org.basex.query.expr.Expr
          extended by org.basex.query.expr.ParseExpr
              extended by org.basex.query.ft.FTExpr
                  extended by org.basex.query.ft.FTMildNot

public final class FTMildNot
extends FTExpr

FTMildnot expression.

Author:
BaseX Team 2005-12, BSD License, Christian Gruen

Nested Class Summary
 
Nested classes/interfaces inherited from class org.basex.query.expr.Expr
Expr.Flag
 
Field Summary
 
Fields inherited from class org.basex.query.ft.FTExpr
expr
 
Fields inherited from class org.basex.query.expr.ParseExpr
info, size, type
 
Constructor Summary
FTMildNot(InputInfo ii, FTExpr e1, FTExpr e2)
          Constructor.
 
Method Summary
 FTExpr copy(QueryContext ctx, VarScope scp, IntObjMap<Var> vs)
          Copies an expression.
 boolean indexAccessible(IndexCosts ic)
          Checks if an expression can be rewritten to an index access.
 FTNode item(QueryContext ctx, InputInfo ii)
          This method is called by the sequential full-text evaluation.
 FTIter iter(QueryContext ctx)
          This method is called by the index-based full-text evaluation.
 java.lang.String toString()
           
 
Methods inherited from class org.basex.query.ft.FTExpr
accept, checkUp, compile, count, exprSize, has, indexEquivalent, inline, optimize, plan, removable
 
Methods inherited from class org.basex.query.expr.ParseExpr
checkAdmin, checkAllUp, checkBinary, checkBln, checkColl, checkCreate, checkCtx, checkDbl, checkDBNode, checkEStr, checkEStr, checkFunc, checkItem, checkItr, checkItr, checkMap, checkNode, checkNode, checkNode, checkNoEmpty, checkNoneUp, checkNoUp, checkQNm, checkStr, checkStr, checkStrBin, checkType, checkWrite, compBln, copyType, ebv, optPre, preEval, size, test, type, value
 
Methods inherited from class org.basex.query.expr.Expr
addText, compEbv, copy, hasFreeVars, inlineAll, isEmpty, isFunction, isItem, isVacuous, isValue, iterable, markTailCalls, sameAs, uses, visitAll
 
Methods inherited from class org.basex.data.ExprInfo
addPlan, addPlan, description, info, planAttr, planElem
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

FTMildNot

public FTMildNot(InputInfo ii,
                 FTExpr e1,
                 FTExpr e2)
          throws QueryException
Constructor.

Parameters:
ii - input info
e1 - first expression
e2 - second expression
Throws:
QueryException - query exception
Method Detail

item

public FTNode item(QueryContext ctx,
                   InputInfo ii)
            throws QueryException
Description copied from class: FTExpr
This method is called by the sequential full-text evaluation.

Specified by:
item in class FTExpr
Parameters:
ctx - query context
ii - input info
Returns:
resulting item
Throws:
QueryException - query exception

iter

public FTIter iter(QueryContext ctx)
            throws QueryException
Description copied from class: FTExpr
This method is called by the index-based full-text evaluation.

Specified by:
iter in class FTExpr
Parameters:
ctx - query context
Returns:
resulting item
Throws:
QueryException - query exception

indexAccessible

public boolean indexAccessible(IndexCosts ic)
                        throws QueryException
Description copied from class: Expr
Checks if an expression can be rewritten to an index access. If this method is implemented, Expr.indexEquivalent(org.basex.query.util.IndexCosts) must be implemented as well.

Overrides:
indexAccessible in class Expr
Parameters:
ic - index costs analyzer
Returns:
true if an index can be used
Throws:
QueryException - query exception

copy

public FTExpr copy(QueryContext ctx,
                   VarScope scp,
                   IntObjMap<Var> vs)
Description copied from class: Expr
Copies an expression. Will be useful for inlining functions, or for copying static queries.

Specified by:
copy in class FTExpr
Parameters:
ctx - query context
scp - variable scope for creating new variables
vs - mapping from old variable IDs to new variable copies
Returns:
copied expression

toString

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