當前位置: 首頁>>代碼示例>>Java>>正文

Java HBaseAdmin.addColumn方法代碼示例

本文整理匯總了Java中org.apache.hadoop.hbase.client.HBaseAdmin.addColumn方法的典型用法代碼示例。如果您正苦於以下問題：Java HBaseAdmin.addColumn方法的具體用法？Java HBaseAdmin.addColumn怎麽用？Java HBaseAdmin.addColumn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.HBaseAdmin的用法示例。


在下文中一共展示了HBaseAdmin.addColumn方法的7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: testAddColumn

import org.apache.hadoop.hbase.client.HBaseAdmin; //導入方法依賴的package包/類
@Test
public void testAddColumn() throws IOException {
  HBaseAdmin admin = TEST_UTIL.getHBaseAdmin();
  // Create a table with two families
  HTableDescriptor baseHtd = new HTableDescriptor(TABLE_NAME);
  baseHtd.addFamily(new HColumnDescriptor(FAMILY_0));
  admin.createTable(baseHtd);
  admin.disableTable(TABLE_NAME);
  try {
    // Verify the table descriptor
    verifyTableDescriptor(TABLE_NAME, FAMILY_0);

    // Modify the table removing one family and verify the descriptor
    admin.addColumn(TABLE_NAME, new HColumnDescriptor(FAMILY_1));
    verifyTableDescriptor(TABLE_NAME, FAMILY_0, FAMILY_1);
  } finally {
    admin.deleteTable(TABLE_NAME);
  }
}
開發者ID:fengchen8086，項目名稱:LCIndex-HBase-0.94.16，代碼行數:20，代碼來源:TestTableDescriptorModification.java

示例2: createMetaData

import org.apache.hadoop.hbase.client.HBaseAdmin; //導入方法依賴的package包/類
public static void createMetaData(ObjectValue object, HTable table) throws IOException {
    final HBaseAdmin admin = new HBaseAdmin(table.getConfiguration());
    // create non existing column families
    for (Step<String> columnFamily : object.keySet()) {
        if(columnFamily.getStep().equals("_id"))
            continue;

        final String columnFamilyId = columnFamily.getStep();

        // check if column family exists
        boolean exists = false;
        for (HColumnDescriptor familyDescriptor : table.getTableDescriptor().getFamilies()) {
            if(Bytes.toString(familyDescriptor.getName()).equals(columnFamilyId)) {
                exists = true;
                break;
            }
        }
        // if not: add it
        if(!exists) {
            admin.disableTable(table.getTableName());
            admin.addColumn(table.getTableName(), new HColumnDescriptor(columnFamilyId));
            admin.enableTable(table.getTableName());
        }
    }
}
開發者ID:notaql，項目名稱:notaql，代碼行數:26，代碼來源:ValueConverter.java

示例3: createFamily

import org.apache.hadoop.hbase.client.HBaseAdmin; //導入方法依賴的package包/類
public static void createFamily(String family, HTable table) {
    try {
        final HBaseAdmin admin = new HBaseAdmin(table.getConfiguration());
        // check if column family exists
        boolean exists = false;
        for (HColumnDescriptor familyDescriptor : table.getTableDescriptor().getFamilies()) {
            if(Bytes.toString(familyDescriptor.getName()).equals(family)) {
                exists = true;
                break;
            }
        }
        // if not: add it
        if(!exists) {
            admin.addColumn(table.getTableName(), new HColumnDescriptor(family));
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
}
開發者ID:notaql，項目名稱:notaql，代碼行數:20，代碼來源:HBaseEngineEvaluator.java

示例4: connect

import org.apache.hadoop.hbase.client.HBaseAdmin; //導入方法依賴的package包/類
@Override
public void connect() throws IOException
{
  super.connect();
  HTableDescriptor tdesc = table.getTableDescriptor();
  if (!tdesc.hasFamily(columnFamilyBytes)) {
    HBaseAdmin admin = new HBaseAdmin(table.getConfiguration());
    admin.disableTable(table.getTableName());
    try {
      HColumnDescriptor cdesc = new HColumnDescriptor(columnFamilyBytes);
      admin.addColumn(table.getTableName(), cdesc);
    } finally {
      admin.enableTable(table.getTableName());
      admin.close();
    }
  }
}
開發者ID:apache，項目名稱:apex-malhar，代碼行數:18，代碼來源:HBaseWindowStore.java

示例5: applyColumnFamilyOptions

import org.apache.hadoop.hbase.client.HBaseAdmin; //導入方法依賴的package包/類
/**
 * Apply column family options such as Bloom filters, compression, and data
 * block encoding.
 */
protected void applyColumnFamilyOptions(byte[] tableName,
    byte[][] columnFamilies) throws IOException {
  HBaseAdmin admin = new HBaseAdmin(conf);
  HTableDescriptor tableDesc = admin.getTableDescriptor(tableName);
  LOG.info("Disabling table " + Bytes.toString(tableName));
  admin.disableTable(tableName);
  for (byte[] cf : columnFamilies) {
    HColumnDescriptor columnDesc = tableDesc.getFamily(cf);
    boolean isNewCf = columnDesc == null;
    if (isNewCf) {
      columnDesc = new HColumnDescriptor(cf);
    }
    if (bloomType != null) {
      columnDesc.setBloomFilterType(bloomType);
    }
    if (compressAlgo != null) {
      columnDesc.setCompressionType(compressAlgo);
    }
    if (dataBlockEncodingAlgo != null) {
      columnDesc.setDataBlockEncoding(dataBlockEncodingAlgo);
      columnDesc.setEncodeOnDisk(!encodeInCacheOnly);
    }
    if (inMemoryCF) {
      columnDesc.setInMemory(inMemoryCF);
    }
    if (isNewCf) {
      admin.addColumn(tableName, columnDesc);
    } else {
      admin.modifyColumn(tableName, columnDesc);
    }
  }
  LOG.info("Enabling table " + Bytes.toString(tableName));
  admin.enableTable(tableName);
}
開發者ID:fengchen8086，項目名稱:LCIndex-HBase-0.94.16，代碼行數:39，代碼來源:LoadTestTool.java

示例6: applyColumnFamilyOptions

import org.apache.hadoop.hbase.client.HBaseAdmin; //導入方法依賴的package包/類
/**
 * Apply column family options such as Bloom filters, compression, and data
 * block encoding.
 */
protected void applyColumnFamilyOptions(TableName tableName,
    byte[][] columnFamilies) throws IOException {
  HBaseAdmin admin = new HBaseAdmin(conf);
  HTableDescriptor tableDesc = admin.getTableDescriptor(tableName);
  LOG.info("Disabling table " + tableName);
  admin.disableTable(tableName);
  for (byte[] cf : columnFamilies) {
    HColumnDescriptor columnDesc = tableDesc.getFamily(cf);
    boolean isNewCf = columnDesc == null;
    if (isNewCf) {
      columnDesc = new HColumnDescriptor(cf);
    }
    if (bloomType != null) {
      columnDesc.setBloomFilterType(bloomType);
    }
    if (compressAlgo != null) {
      columnDesc.setCompressionType(compressAlgo);
    }
    if (dataBlockEncodingAlgo != null) {
      columnDesc.setDataBlockEncoding(dataBlockEncodingAlgo);
    }
    if (inMemoryCF) {
      columnDesc.setInMemory(inMemoryCF);
    }
    if (cipher != null) {
      byte[] keyBytes = new byte[cipher.getKeyLength()];
      new SecureRandom().nextBytes(keyBytes);
      columnDesc.setEncryptionType(cipher.getName());
      columnDesc.setEncryptionKey(EncryptionUtil.wrapKey(conf,
        User.getCurrent().getShortName(),
        new SecretKeySpec(keyBytes, cipher.getName())));
    }
    if (isNewCf) {
      admin.addColumn(tableName, columnDesc);
    } else {
      admin.modifyColumn(tableName, columnDesc);
    }
  }
  LOG.info("Enabling table " + tableName);
  admin.enableTable(tableName);
}
開發者ID:tenggyut，項目名稱:HIndex，代碼行數:46，代碼來源:LoadTestTool.java

示例7: addColumnFamily

import org.apache.hadoop.hbase.client.HBaseAdmin; //導入方法依賴的package包/類
@Test
public void addColumnFamily() throws Exception {
	String TABLE_NAME = "TEST_BENCHMARK";
	//
	Configuration configuration = createConfiguration();
	HBaseAdmin hbaseAdmin = createHBaseAdmin(configuration);
	//
	// 新增column時,須將table disable
	if (hbaseAdmin.isTableEnabled(TABLE_NAME)) {
		hbaseAdmin.disableTable(TABLE_NAME);
	}
	//
	String COLUMN_FAMILY = "seq";
	HColumnDescriptor hcd = new HColumnDescriptor(COLUMN_FAMILY);
	// hcd.setBloomFilterType(BloomType.ROWCOL);
	hcd.setBlockCacheEnabled(true);
	// hcd.setCompressionType(Algorithm.SNAPPY);
	hcd.setInMemory(true);
	hcd.setMaxVersions(1);
	hcd.setMinVersions(0);
	hcd.setTimeToLive(432000);// 秒為單位
	hbaseAdmin.addColumn(TABLE_NAME, hcd);// TableNotDisabledException,
	System.out.println("add column family [" + COLUMN_FAMILY + "]");
	//
	COLUMN_FAMILY = "id";
	hcd = new HColumnDescriptor(COLUMN_FAMILY);
	// hcd.setBloomFilterType(BloomType.ROWCOL);
	hcd.setBlockCacheEnabled(true);
	// hcd.setCompressionType(Algorithm.SNAPPY);
	hcd.setInMemory(true);
	hcd.setMaxVersions(1);
	hcd.setMinVersions(0);
	hcd.setTimeToLive(432000);// 秒為單位,5d
	hbaseAdmin.addColumn(TABLE_NAME, hcd);// TableNotDisabledException,
	System.out.println("add column family [" + COLUMN_FAMILY + "]");
	//
	COLUMN_FAMILY = "info";
	hcd = new HColumnDescriptor(COLUMN_FAMILY);
	// hcd.setBloomFilterType(BloomType.ROWCOL);
	hcd.setBlockCacheEnabled(true);
	// hcd.setCompressionType(Algorithm.SNAPPY);
	hcd.setInMemory(true);
	hcd.setMaxVersions(1);
	hcd.setMinVersions(0);
	hcd.setTimeToLive(432000);// 秒為單位
	hbaseAdmin.addColumn(TABLE_NAME, hcd);// TableNotDisabledException
	System.out.println("add column family [" + COLUMN_FAMILY + "]");

	// 新增column後,再將table enable
	if (hbaseAdmin.isTableDisabled(TABLE_NAME)) {
		hbaseAdmin.enableTable(TABLE_NAME);
	}
}
開發者ID:mixaceh，項目名稱:openyu-commons，代碼行數:54，代碼來源:BenchmarkHzBaoSupporterTest.java


注：本文中的org.apache.hadoop.hbase.client.HBaseAdmin.addColumn方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。