本文整理汇总了Java中com.sleepycat.je.Transaction.commitSync方法的典型用法代码示例。如果您正苦于以下问题:Java Transaction.commitSync方法的具体用法?Java Transaction.commitSync怎么用?Java Transaction.commitSync使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类com.sleepycat.je.Transaction
的用法示例。
在下文中一共展示了Transaction.commitSync方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: syncExplicit
import com.sleepycat.je.Transaction; //导入方法依赖的package包/类
/**
* Does an explicit commit and returns whether an fsync occured.
*/
private void syncExplicit(RandomAccessFile lastLogFile,
TransactionConfig config,
boolean expectSync,
boolean expectWrite)
throws DatabaseException, IOException {
DatabaseEntry key = new DatabaseEntry(new byte[1]);
DatabaseEntry data = new DatabaseEntry(new byte[1]);
long beforeSyncs = getNSyncs();
Transaction txn = env.beginTransaction(null, config);
db.put(txn, key, data);
long beforeLength = lastLogFile.length();
txn.commit();
long afterSyncs = getNSyncs();
long afterLength = lastLogFile.length();
boolean syncOccurred = afterSyncs > beforeSyncs;
boolean writeOccurred = afterLength > beforeLength;
assertEquals(expectSync, syncOccurred);
assertEquals(expectWrite, writeOccurred);
/*
* Make sure explicit sync/noSync/writeNoSync always works.
*/
/* Expect a sync and write. */
beforeSyncs = getNSyncs();
beforeLength = lastLogFile.length();
txn = env.beginTransaction(null, config);
db.put(txn, key, data);
txn.commitSync();
afterSyncs = getNSyncs();
afterLength = lastLogFile.length();
assert(afterSyncs > beforeSyncs);
assert(afterLength > beforeLength);
/* Expect neither a sync nor write. */
beforeSyncs = getNSyncs();
beforeLength = lastLogFile.length();
txn = env.beginTransaction(null, config);
db.put(txn, key, data);
txn.commitNoSync();
afterSyncs = getNSyncs();
afterLength = lastLogFile.length();
assert(afterSyncs == beforeSyncs);
assert(afterLength == beforeLength);
/* Expect no sync but do expect a write. */
beforeSyncs = getNSyncs();
beforeLength = lastLogFile.length();
txn = env.beginTransaction(null, config);
db.put(txn, key, data);
txn.commitWriteNoSync();
afterSyncs = getNSyncs();
afterLength = lastLogFile.length();
assert(afterSyncs == beforeSyncs);
assert(afterLength > beforeLength);
}
示例2: syncExplicit
import com.sleepycat.je.Transaction; //导入方法依赖的package包/类
/**
* Does an explicit commit and returns whether an fsync occured.
*/
private void syncExplicit(RandomAccessFile lastLogFile,
TransactionConfig config,
boolean expectSync,
boolean expectWrite)
throws DatabaseException, IOException {
DatabaseEntry key = new DatabaseEntry(new byte[1]);
DatabaseEntry data = new DatabaseEntry(new byte[1]);
long beforeSyncs = getNSyncs();
Transaction txn = env.beginTransaction(null, config);
db.put(txn, key, data);
long beforeLength = lastLogFile.length();
txn.commit();
long afterSyncs = getNSyncs();
long afterLength = lastLogFile.length();
boolean syncOccurred = afterSyncs > beforeSyncs;
boolean writeOccurred = afterLength > beforeLength;
assertEquals(expectSync, syncOccurred);
assertEquals(expectWrite, writeOccurred);
/*
* Make sure explicit sync/noSync/writeNoSync always works.
*/
/* Expect a sync and write. */
beforeSyncs = getNSyncs();
beforeLength = lastLogFile.length();
txn = env.beginTransaction(null, config);
db.put(txn, key, data);
txn.commitSync();
afterSyncs = getNSyncs();
afterLength = lastLogFile.length();
assert(afterSyncs > beforeSyncs);
assert(afterLength > beforeLength);
/* Expect neither a sync nor write. */
beforeSyncs = getNSyncs();
beforeLength = lastLogFile.length();
txn = env.beginTransaction(null, config);
db.put(txn, key, data);
txn.commitNoSync();
afterSyncs = getNSyncs();
afterLength = lastLogFile.length();
assert(afterSyncs == beforeSyncs);
assert(afterLength == beforeLength);
/* Expect no sync but do expect a write. */
beforeSyncs = getNSyncs();
beforeLength = lastLogFile.length();
txn = env.beginTransaction(null, config);
db.put(txn, key, data);
txn.commitWriteNoSync();
afterSyncs = getNSyncs();
afterLength = lastLogFile.length();
assert(afterSyncs == beforeSyncs);
assert(afterLength > beforeLength);
}