Java HColumnDescriptor.getName方法代碼示例

import org.apache.hadoop.hbase.HColumnDescriptor; //導入方法依賴的package包/類
/**
 * Modify Column of a table
 * @param tableName
 * @param hcd HColumnDesciptor
 * @return Modified HTableDescriptor with the column modified.
 * @throws IOException
 */
public HTableDescriptor modifyColumn(TableName tableName, HColumnDescriptor hcd)
    throws IOException {
  LOG.info("AddModifyColumn. Table = " + tableName
      + " HCD = " + hcd.toString());

  HTableDescriptor htd = this.services.getTableDescriptors().get(tableName);
  byte [] familyName = hcd.getName();
  if(!htd.hasFamily(familyName)) {
    throw new InvalidFamilyOperationException("Family '" +
      Bytes.toString(familyName) + "' doesn't exists so cannot be modified");
  }
  htd.modifyFamily(hcd);
  this.services.getTableDescriptors().add(htd);
  return htd;
}
 

import org.apache.hadoop.hbase.HColumnDescriptor; //導入方法依賴的package包/類
@Override
public InternalScanner preFlushScannerOpen(
    final ObserverContext<RegionCoprocessorEnvironment> c,
    Store store, KeyValueScanner memstoreScanner, InternalScanner s) throws IOException {
  Long newTtl = ttls.get(store.getTableName());
  if (newTtl != null) {
    System.out.println("PreFlush:" + newTtl);
  }
  Integer newVersions = versions.get(store.getTableName());
  ScanInfo oldSI = store.getScanInfo();
  HColumnDescriptor family = store.getFamily();
  ScanInfo scanInfo = new ScanInfo(TEST_UTIL.getConfiguration(),
      family.getName(), family.getMinVersions(),
      newVersions == null ? family.getMaxVersions() : newVersions,
      newTtl == null ? oldSI.getTtl() : newTtl, family.getKeepDeletedCells(),
      oldSI.getTimeToPurgeDeletes(), oldSI.getComparator());
  Scan scan = new Scan();
  scan.setMaxVersions(newVersions == null ? oldSI.getMaxVersions() : newVersions);
  return new StoreScanner(store, scanInfo, scan, Collections.singletonList(memstoreScanner),
      ScanType.COMPACT_RETAIN_DELETES, store.getSmallestReadPoint(),
      HConstants.OLDEST_TIMESTAMP);
}
 

import org.apache.hadoop.hbase.HColumnDescriptor; //導入方法依賴的package包/類
@Override
public InternalScanner preCompactScannerOpen(
    final ObserverContext<RegionCoprocessorEnvironment> c,
    Store store, List<? extends KeyValueScanner> scanners, ScanType scanType,
    long earliestPutTs, InternalScanner s) throws IOException {
  Long newTtl = ttls.get(store.getTableName());
  Integer newVersions = versions.get(store.getTableName());
  ScanInfo oldSI = store.getScanInfo();
  HColumnDescriptor family = store.getFamily();
  ScanInfo scanInfo = new ScanInfo(TEST_UTIL.getConfiguration(),
      family.getName(), family.getMinVersions(),
      newVersions == null ? family.getMaxVersions() : newVersions,
      newTtl == null ? oldSI.getTtl() : newTtl, family.getKeepDeletedCells(),
      oldSI.getTimeToPurgeDeletes(), oldSI.getComparator());
  Scan scan = new Scan();
  scan.setMaxVersions(newVersions == null ? oldSI.getMaxVersions() : newVersions);
  return new StoreScanner(store, scanInfo, scan, scanners, scanType,
      store.getSmallestReadPoint(), earliestPutTs);
}
 

import org.apache.hadoop.hbase.HColumnDescriptor; //導入方法依賴的package包/類
@Override
public KeyValueScanner preStoreScannerOpen(
    final ObserverContext<RegionCoprocessorEnvironment> c, Store store, final Scan scan,
    final NavigableSet<byte[]> targetCols, KeyValueScanner s) throws IOException {
  TableName tn = store.getTableName();
  if (!tn.isSystemTable()) {
    Long newTtl = ttls.get(store.getTableName());
    Integer newVersions = versions.get(store.getTableName());
    ScanInfo oldSI = store.getScanInfo();
    HColumnDescriptor family = store.getFamily();
    ScanInfo scanInfo = new ScanInfo(TEST_UTIL.getConfiguration(),
        family.getName(), family.getMinVersions(),
        newVersions == null ? family.getMaxVersions() : newVersions,
        newTtl == null ? oldSI.getTtl() : newTtl, family.getKeepDeletedCells(),
        oldSI.getTimeToPurgeDeletes(), oldSI.getComparator());
    return new StoreScanner(store, scanInfo, scan, targetCols,
        ((HStore) store).getHRegion().getReadpoint(IsolationLevel.READ_COMMITTED));
  } else {
    return s;
  }
}
 

import org.apache.hadoop.hbase.HColumnDescriptor; //導入方法依賴的package包/類
private boolean hasFamily(HColumnDescriptor family, TableName table) throws IOException {
  byte[] familyName = family.getName();
  HTableDescriptor tableDescriptor = admin.getTableDescriptor(table);
  return tableDescriptor.hasFamily(familyName);
}
 

import org.apache.hadoop.hbase.HColumnDescriptor; //導入方法依賴的package包/類
/**
 * @param conf
 * @param family             {@link HColumnDescriptor} describing the column family
 * @param ttl                Store's TTL (in ms)
 * @param timeToPurgeDeletes duration in ms after which a delete marker can
 *                           be purged during a major compaction.
 * @param comparator         The store's comparator
 */
public ScanInfo(final Configuration conf, final HColumnDescriptor family, final long ttl,
    final long timeToPurgeDeletes, final KVComparator comparator) {
  this(conf, family.getName(), family.getMinVersions(), family.getMaxVersions(), ttl,
      family.getKeepDeletedCells(), timeToPurgeDeletes, comparator);
}