org.smallmind.persistence.orm.ProxyTransaction Maven / Gradle / Ivy
/*
* Copyright (c) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 David Berkman
*
* This file is part of the SmallMind Code Project.
*
* The SmallMind Code Project is free software, you can redistribute
* it and/or modify it under either, at your discretion...
*
* 1) The terms of GNU Affero General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* ...or...
*
* 2) The terms of the Apache License, Version 2.0.
*
* The SmallMind Code Project 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 or Apache License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* and the Apache License along with the SmallMind Code Project. If not, see
* or .
*
* Additional permission under the GNU Affero GPL version 3 section 7
* ------------------------------------------------------------------
* If you modify this Program, or any covered work, by linking or
* combining it with other code, such other code is not for that reason
* alone subject to any of the requirements of the GNU Affero GPL
* version 3.
*/
package org.smallmind.persistence.orm;
import java.util.Collections;
import java.util.LinkedList;
import java.util.UUID;
public abstract class ProxyTransaction {
private static final ProcessPriorityComparator PROCESS_PRIORITY_COMPARATOR = new ProcessPriorityComparator();
private S proxySession;
private LinkedList postProcessList;
private String uuidAsString;
private boolean rollbackOnly = false;
public ProxyTransaction (S proxySession) {
this.proxySession = proxySession;
uuidAsString = UUID.randomUUID().toString();
}
public abstract void flush ();
public abstract void commit ();
public abstract void rollback ();
public abstract boolean isCompleted ();
public String getUniqueId () {
return uuidAsString;
}
public S getSession () {
return proxySession;
}
public void setRollbackOnly () {
rollbackOnly = true;
}
public boolean isRollbackOnly () {
return rollbackOnly;
}
private LinkedList getPostProcessList () {
return (postProcessList == null) ? postProcessList = new LinkedList() : postProcessList;
}
public void addPostProcess (TransactionPostProcess postProcess) {
getPostProcessList().add(postProcess);
}
protected void applyPostProcesses (TransactionEndState endState)
throws TransactionPostProcessException {
TransactionPostProcessException postProcessException = null;
Collections.sort(getPostProcessList(), PROCESS_PRIORITY_COMPARATOR);
for (TransactionPostProcess postProcess : getPostProcessList()) {
if (postProcess.getEndState().equals(TransactionEndState.ANY) || postProcess.getEndState().equals(endState)) {
try {
postProcess.process();
}
catch (Exception exception) {
if (postProcessException == null) {
postProcessException = new TransactionPostProcessException(exception);
}
else {
postProcessException.addSubsequentCause(exception);
}
}
}
}
if (postProcessException != null) {
throw postProcessException;
}
}
public int hashCode () {
return uuidAsString.hashCode();
}
public boolean equals (Object obj) {
return (obj instanceof ProxyTransaction) && uuidAsString.equals(((ProxyTransaction)obj).getUniqueId());
}
}
© 2015 - 2025 Weber Informatics LLC | Privacy Policy