/* This file is part of the db4o object database http://www.db4o.com
Copyright (C) 2004 - 2011 Versant Corporation http://www.versant.com
db4o is free software; you can redistribute it and/or modify it under
the terms of version 3 of the GNU General Public License as published
by the Free Software Foundation.
db4o 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 General Public License
for more details.
You should have received a copy of the GNU General Public License along
with this program. If not, see http://www.gnu.org/licenses/. */
package com.db4o.diagnostic;
public class NativeQueryOptimizerNotLoaded extends DiagnosticBase {
private int _reason;
private final Exception _details;
public final static int NQ_NOT_PRESENT = 1;
public final static int NQ_CONSTRUCTION_FAILED = 2;
public NativeQueryOptimizerNotLoaded(int reason, Exception details) {
_reason = reason;
_details = details;
}
public String problem() {
return "Native Query Optimizer could not be loaded";
}
public Object reason() {
switch (_reason) {
case NQ_NOT_PRESENT:
return AppendDetails("Native query not present.");
case NQ_CONSTRUCTION_FAILED:
return AppendDetails("Native query couldn't be instantiated.");
default:
return AppendDetails("Reason not specified.");
}
}
public String solution() {
return "If you to have the native queries optimized, please check that the native query jar is present in the class-path.";
}
private Object AppendDetails(String reason) {
if (_details == null) {
return reason;
}
return reason + "\n" + _details.toString();
}
}