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  * Copyright (c) 2013 GraphAware
  * This file is part of GraphAware.
  * GraphAware is free software: you can redistribute it and/or modify it under the terms of
  * the GNU General Public License as published by the Free Software Foundation, either
  * version 3 of the License, or (at your option) any later version.
 * This program 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
 * <>.
package com.graphaware.tx.executor.single;
ExceptionHandlingStrategy that merely logs the exception. It is good for batch imports, for instance, when we don't want a single exception messing up the whole import. Instead, we'd like the current transaction to roll-back, start a new one, and carry on.

Note that this is a singleton.

public final class KeepCalmAndCarryOn implements ExceptionHandlingStrategy {
    private static final Logger LOG = Logger.getLogger(KeepCalmAndCarryOn.class);
    private static final KeepCalmAndCarryOn INSTANCE = new KeepCalmAndCarryOn();

Get an instance of this strategy.

singleton instance.
    public static KeepCalmAndCarryOn getInstance() {
        return ;

    public void handleException(RuntimeException e) {
        .error("An exception occurred while executing transaction"e);

Private constructor to enforce singleton.
    private KeepCalmAndCarryOn() {
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