package com.dbxml.db.common.xupdate;
/*
* dbXML - Native XML Database
* Copyright (c) 1999-2006 The dbXML Group, L.L.C.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* $Id: XUpdateResultSet.java,v 1.4 2006/02/02 18:53:52 bradford Exp $
*/
import com.dbxml.db.common.query.ResultSetBase;
import com.dbxml.db.core.Collection;
import com.dbxml.db.core.DBException;
import com.dbxml.db.core.data.Key;
import com.dbxml.db.core.query.ProcessingException;
import com.dbxml.db.core.query.Query;
import com.dbxml.db.core.query.QueryException;
import com.dbxml.db.core.transaction.Transaction;
import com.dbxml.xml.dtsm.Constants;
import com.dbxml.xml.dtsm.DocumentTable;
import com.dbxml.xml.dtsm.TableBuilder;
/**
* XUpdateResultSet
*/
final class XUpdateResultSet extends ResultSetBase {
private static final byte[] EmptyBytes = new byte[0];
private static final Key EmptyKey = new Key(EmptyBytes);
private static final Key[] EmptyKeys = new Key[] {EmptyKey};
private DocumentTable dt;
private int modified;
public XUpdateResultSet(Transaction tx, Collection context, Query query, int modified) {
super(tx, context, query, EmptyKeys);
this.modified = modified;
}
public boolean next() throws QueryException {
checkOpened();
if ( nextKey() != null ) {
try {
TableBuilder tb = new TableBuilder(context.getSymbols());
tb.addEntry(Constants.OBJ_TEXT, EmptyBytes);
dt = tb.buildDocumentTable();
return true;
}
catch ( DBException e ) {
throw new ProcessingException(e);
}
}
else {
dt = null;
return false;
}
}
public int getResultType() throws QueryException {
checkOpened();
if ( dt != null )
return dt.getEntry(0).getTypeID();
else
return -1;
}
public int getCount() throws QueryException {
checkOpened();
return modified;
}
public DocumentTable getResult() throws QueryException {
checkOpened();
return dt;
}
}