本文整理匯總了Java中org.apache.hadoop.hbase.client.Scan.setRaw方法的典型用法代碼示例。如果您正苦於以下問題：Java Scan.setRaw方法的具體用法？Java Scan.setRaw怎麽用？Java Scan.setRaw使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類org.apache.hadoop.hbase.client.Scan的用法示例。
在下文中一共展示了Scan.setRaw方法的3個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: testRawScanWithColumns
import org.apache.hadoop.hbase.client.Scan; //導入方法依賴的package包/類
/**
* The ExplicitColumnTracker does not support "raw" scanning.
*/
@Test
public void testRawScanWithColumns() throws Exception {
HTableDescriptor htd = hbu.createTableDescriptor(name.getMethodName(), 0, 3,
HConstants.FOREVER, KeepDeletedCells.TRUE);
HRegion region = hbu.createLocalHRegion(htd, null, null);
Scan s = new Scan();
s.setRaw(true);
s.setMaxVersions();
s.addColumn(c0, c0);
try {
region.getScanner(s);
fail("raw scanner with columns should have failed");
} catch (org.apache.hadoop.hbase.DoNotRetryIOException dnre) {
// ok!
}
HRegion.closeHRegion(region);
}
示例2: countDeleteMarkers
import org.apache.hadoop.hbase.client.Scan; //導入方法依賴的package包/類
private int countDeleteMarkers(Region region) throws IOException {
Scan s = new Scan();
s.setRaw(true);
// use max versions from the store(s)
s.setMaxVersions(region.getStores().iterator().next().getScanInfo().getMaxVersions());
InternalScanner scan = region.getScanner(s);
List<Cell> kvs = new ArrayList<Cell>();
int res = 0;
boolean hasMore;
do {
hasMore = scan.next(kvs);
for (Cell kv : kvs) {
if(CellUtil.isDelete(kv)) res++;
}
kvs.clear();
} while (hasMore);
scan.close();
return res;
}
示例3: getConfiguredScanForJob
import org.apache.hadoop.hbase.client.Scan; //導入方法依賴的package包/類
private static Scan getConfiguredScanForJob(Configuration conf, String[] args) throws IOException {
Scan s = new Scan();
// Optional arguments.
// Set Scan Versions
int versions = args.length > 2? Integer.parseInt(args[2]): 1;
s.setMaxVersions(versions);
// Set Scan Range
long startTime = args.length > 3? Long.parseLong(args[3]): 0L;
long endTime = args.length > 4? Long.parseLong(args[4]): Long.MAX_VALUE;
s.setTimeRange(startTime, endTime);
// Set cache blocks
s.setCacheBlocks(false);
// set Start and Stop row
if (conf.get(TableInputFormat.SCAN_ROW_START) != null) {
s.setStartRow(Bytes.toBytes(conf.get(TableInputFormat.SCAN_ROW_START)));
}
if (conf.get(TableInputFormat.SCAN_ROW_STOP) != null) {
s.setStopRow(Bytes.toBytes(conf.get(TableInputFormat.SCAN_ROW_STOP)));
}
// Set Scan Column Family
boolean raw = Boolean.parseBoolean(conf.get(RAW_SCAN));
if (raw) {
s.setRaw(raw);
}
if (conf.get(TableInputFormat.SCAN_COLUMN_FAMILY) != null) {
s.addFamily(Bytes.toBytes(conf.get(TableInputFormat.SCAN_COLUMN_FAMILY)));
}
// Set RowFilter or Prefix Filter if applicable.
Filter exportFilter = getExportFilter(args);
if (exportFilter!= null) {
LOG.info("Setting Scan Filter for Export.");
s.setFilter(exportFilter);
}
int batching = conf.getInt(EXPORT_BATCHING, -1);
if (batching != -1){
try {
s.setBatch(batching);
} catch (IncompatibleFilterException e) {
LOG.error("Batching could not be set", e);
}
}
LOG.info("versions=" + versions + ", starttime=" + startTime +
", endtime=" + endTime + ", keepDeletedCells=" + raw);
return s;
}