package adql.query;
/*
* This file is part of ADQLLibrary.
*
* ADQLLibrary is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* ADQLLibrary is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with ADQLLibrary. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2012-2013 - UDS/Centre de Données astronomiques de Strasbourg (CDS),
* Astronomisches Rechen Institut (ARI)
*/
/**
* Represents an ADQL clause (i.e. SELECT, FROM, WHERE, ...).
*
* @author Grégory Mantelet (CDS;ARI)
* @version 1.2 (12/2013)
*/
public class ClauseADQL< T extends ADQLObject > extends ADQLList<T> {
/**
* Builds an anonymous ClauseADQL.
*/
public ClauseADQL(){
super((String)null);
}
/**
* Builds a ClauseADQL considering its name.
*
* @param name List label.
*/
public ClauseADQL(String name){
super(name);
}
/**
* Builds a ClauseADQL by copying the given one. It copies also all the list items of the given ClauseADQL.
*
* @param toCopy The ClauseADQL to copy.
* @throws Exception If there is an unexpected error during the copy.
*/
public ClauseADQL(ADQLList<T> toCopy) throws Exception{
super(toCopy);
}
@Override
public ADQLObject getCopy() throws Exception{
return new ClauseADQL<T>(this);
}
/**
* Possible separators: only ",".
*
* @see adql.query.ADQLList#getPossibleSeparators()
*/
@Override
public String[] getPossibleSeparators(){
return new String[]{","};
}
/**
* Returns always ",", except if the index is incorrect (index <= 0 or index >= size()).
*
* @see adql.query.ADQLList#getSeparator(int)
*/
@Override
public String getSeparator(int index) throws ArrayIndexOutOfBoundsException{
if (index <= 0 || index > size())
throw new ArrayIndexOutOfBoundsException("Impossible to get the separator between the item " + (index - 1) + " and " + index + " !");
else
return ",";
}
}