org.basex.query.xpath.func
Class NormalizeSpace

java.lang.Object
  extended by org.basex.query.ExprInfo
      extended by org.basex.query.xpath.expr.Expr
          extended by org.basex.query.xpath.func.Func
              extended by org.basex.query.xpath.func.NormalizeSpace

public final class NormalizeSpace
extends Func

Constructor for string() function.

Author:
Workgroup DBIS, University of Konstanz 2005-08, ISC License, Tim Petrowsky

Field Summary
 
Fields inherited from class org.basex.query.xpath.func.Func
desc
 
Constructor Summary
NormalizeSpace(Expr[] arg)
          Function Constructor.
 
Method Summary
 boolean checkArguments()
          Checks validity/number of arguments.
 Str eval(XPContext ctx)
          Evaluates the expression with the specified context set.
 
Methods inherited from class org.basex.query.xpath.func.Func
comp, evalArgs, plan, toString, usesPos, usesSize
 
Methods inherited from class org.basex.query.xpath.expr.Expr
indexEquivalent, indexSizes, returnedValue, sameAs
 
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

NormalizeSpace

public NormalizeSpace(Expr[] arg)
Function Constructor.

Parameters:
arg - expression array
Method Detail

eval

public Str eval(XPContext ctx)
         throws QueryException
Description copied from class: Expr
Evaluates the expression with the specified context set. Additionally provides a context

Specified by:
eval in class Expr
Parameters:
ctx - query context
Returns:
resulting XPathValue
Throws:
QueryException - evaluation exception

checkArguments

public boolean checkArguments()
Description copied from class: Func
Checks validity/number of arguments.

Specified by:
checkArguments in class Func
Returns:
result of comparison