/*
* Copyright 1999-2010 Luca Garulli (l.garulli--at--orientechnologies.com)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.orientechnologies.orient.core.tx;
import java.io.IOException;
import com.orientechnologies.common.log.OLogManager;
import com.orientechnologies.orient.core.cache.OLevel1RecordCache;
import com.orientechnologies.orient.core.db.ODatabaseListener;
import com.orientechnologies.orient.core.db.raw.ODatabaseRaw;
import com.orientechnologies.orient.core.db.record.ODatabaseRecordTx;
import com.orientechnologies.orient.core.exception.OTransactionException;
import com.orientechnologies.orient.core.storage.OStorage;
public abstract class OTransactionAbstract implements OTransaction {
protected final ODatabaseRecordTx database;
protected TXSTATUS status = TXSTATUS.INVALID;
protected OTransactionAbstract(ODatabaseRecordTx iDatabase) {
database = iDatabase;
}
public abstract boolean isUsingLog();
public abstract void setUsingLog(boolean useLog);
public TXSTATUS getStatus() {
return status;
}
public ODatabaseRecordTx getDatabase() {
return database;
}
protected void checkTransaction() {
if (status == TXSTATUS.INVALID)
throw new OTransactionException("Invalid state of the transaction. The transaction must be begun.");
}
public static void updateCacheFromEntries(final OStorage iStorage, final OTransaction iTx,
final Iterable<? extends OTransactionRecordEntry> iEntries) throws IOException {
final OLevel1RecordCache dbCache = (OLevel1RecordCache) iTx.getDatabase().getLevel1Cache();
for (OTransactionRecordEntry txEntry : iEntries) {
if (txEntry.status == OTransactionRecordEntry.DELETED)
dbCache.deleteRecord(txEntry.getRecord().getIdentity());
else if (txEntry.status == OTransactionRecordEntry.UPDATED || txEntry.status == OTransactionRecordEntry.CREATED)
dbCache.updateRecord(txEntry.getRecord());
}
}
protected void invokeCommitAgainstListeners() {
// WAKE UP LISTENERS
for (ODatabaseListener listener : ((ODatabaseRaw) database.getUnderlying()).getListeners())
try {
listener.onBeforeTxCommit(database.getUnderlying());
} catch (Throwable t) {
OLogManager.instance().error(this, "Error on commit callback against listener: " + listener, t);
}
}
protected void invokeRollbackAgainstListeners() {
// WAKE UP LISTENERS
for (ODatabaseListener listener : ((ODatabaseRaw) database.getUnderlying()).getListeners())
try {
listener.onBeforeTxRollback(database.getUnderlying());
} catch (Throwable t) {
OLogManager.instance().error(this, "Error on rollback callback against listener: " + listener, t);
}
}
}