本文整理汇总了Java中org.apache.hadoop.mapred.BackupStore类的典型用法代码示例。如果您正苦于以下问题：Java BackupStore类的具体用法？Java BackupStore怎么用？Java BackupStore使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
BackupStore类属于org.apache.hadoop.mapred包，在下文中一共展示了BackupStore类的3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: mark
import org.apache.hadoop.mapred.BackupStore; //导入依赖的package包/类
@Override
public void mark() throws IOException {
if (getBackupStore() == null) {
backupStore = new BackupStore<KEYIN,VALUEIN>(conf, taskid);
}
isMarked = true;
if (!inReset) {
backupStore.reinitialize();
if (currentKeyLength == -1) {
// The user has not called next() for this iterator yet, so
// there is no current record to mark and copy to backup store.
return;
}
assert (currentValueLength != -1);
int requestedSize = currentKeyLength + currentValueLength +
WritableUtils.getVIntSize(currentKeyLength) +
WritableUtils.getVIntSize(currentValueLength);
DataOutputStream out = backupStore.getOutputStream(requestedSize);
writeFirstKeyValueBytes(out);
backupStore.updateCounters(requestedSize);
} else {
backupStore.mark();
}
}
示例2: mark
import org.apache.hadoop.mapred.BackupStore; //导入依赖的package包/类
@Override
public void mark() throws IOException {
if (backupStore == null) {
backupStore = new BackupStore<KEYIN,VALUEIN>(conf, taskid);
}
isMarked = true;
if (!inReset) {
backupStore.reinitialize();
if (currentKeyLength == -1) {
// The user has not called next() for this iterator yet, so
// there is no current record to mark and copy to backup store.
return;
}
assert (currentValueLength != -1);
int requestedSize = currentKeyLength + currentValueLength +
WritableUtils.getVIntSize(currentKeyLength) +
WritableUtils.getVIntSize(currentValueLength);
DataOutputStream out = backupStore.getOutputStream(requestedSize);
writeFirstKeyValueBytes(out);
backupStore.updateCounters(requestedSize);
} else {
backupStore.mark();
}
}
示例3: getBackupStore
import org.apache.hadoop.mapred.BackupStore; //导入依赖的package包/类
BackupStore<KEYIN,VALUEIN> getBackupStore() {
return backupStore;
}