Examples of org.apache.hadoop.hbase.index.IndexSpecification

org.apache.hadoop.hbase.index.IndexSpecification
An IndexSpecification should have a unique name and can be created on 1 or more columns (Here column refers to columnfamily + qualifier) For each of such column a ColumnQualifier is provided which takes the column details. This includes the column family name and qualifier name. The additional columns are those columns in the main table whose value also will be captured in the secondary index table. Index Specfication name should not start with '.' and '-'. Can contain alphanumerics and '-','.','_'.

    masterFilter.addFilter(filter1);
    masterFilter.addFilter(filter2);
    Scan scan = new Scan();
    scan.setFilter(masterFilter);
    // Will throw null pointer here.
    IndexSpecification indexSpec = new IndexSpecification("a");
    indexSpec
        .addIndexColumn(new HColumnDescriptor(family), Bytes.toString(qual), ValueType.Int, 10);
    boolean add = arrayList.add(indexSpec);
    IndexManager.getInstance().addIndexForTable(this.region.getTableDesc().getNameAsString(),
      arrayList);
    mapper.evaluate(scan, indices, new byte[0], this.region, this.region.getTableDesc()

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    }
  }
*/
  private IndexSpecification createIndexSpecification(String cf, ValueType type,
      int maxValueLength, String[] qualifiers, String name) {
    IndexSpecification index = new IndexSpecification(name.getBytes());
    for (String qualifier : qualifiers) {
      index.addIndexColumn(new HColumnDescriptor(cf), qualifier, type, maxValueLength);
    }
    return index;
  }

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    conf.setInt("hbase.regionserver.lease.period", 90000000);
    ZooKeeperWatcher zkw = HBaseTestingUtility.getZooKeeperWatcher(UTIL);
    String userTableName = "testHDP2989";
    IndexedHTableDescriptor ihtd = new IndexedHTableDescriptor(userTableName);
    HColumnDescriptor hcd = new HColumnDescriptor("col");
    IndexSpecification iSpec = new IndexSpecification("ScanIndexf");
    iSpec.addIndexColumn(hcd, "ql", ValueType.String, 10);
    ihtd.addFamily(hcd);
    ihtd.addIndex(iSpec);
    admin.createTable(ihtd);
    ZKAssign.blockUntilNoRIT(zkw);
    HTable table = new HTable(conf, userTableName);

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    ZooKeeperWatcher zkw = HBaseTestingUtility.getZooKeeperWatcher(UTIL);
    String userTableName = "testCompactionOfIndexRegionBeforeMainRegionOpens";
    IndexedHTableDescriptor ihtd = new IndexedHTableDescriptor(userTableName);
    HColumnDescriptor hcd = new HColumnDescriptor("col1");
    ihtd.addFamily(hcd);
    IndexSpecification iSpec = new IndexSpecification("Index1");
    iSpec.addIndexColumn(hcd, "ql", ValueType.String, 10);
    IndexSpecification iSpec1 = new IndexSpecification("Index2");
    iSpec1.addIndexColumn(hcd, "q2", ValueType.String, 10);
    ihtd.addIndex(iSpec);
    ihtd.addIndex(iSpec1);
    admin.createTable(ihtd);


    ZKAssign.blockUntilNoRIT(zkw);

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    conf.setInt("hbase.regionserver.lease.period", 90000000);
    ZooKeeperWatcher zkw = HBaseTestingUtility.getZooKeeperWatcher(UTIL);
    final String userTableName = "testHDP3015";
    IndexedHTableDescriptor ihtd = new IndexedHTableDescriptor(userTableName);
    HColumnDescriptor hcd = new HColumnDescriptor("col");
    IndexSpecification iSpec = new IndexSpecification("ScanIndexf");
    iSpec.addIndexColumn(hcd, "ql", ValueType.String, 10);
    ihtd.addFamily(hcd);
    ihtd.addIndex(iSpec);
    admin.createTable(ihtd);
    ZKAssign.blockUntilNoRIT(zkw);
    HTable table = new HTable(conf, userTableName);

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      public Object run() throws Exception {
        HBaseAdmin admin = new HBaseAdmin(conf);
        IndexedHTableDescriptor htd = new IndexedHTableDescriptor("testCreateTable");
        HColumnDescriptor hcd = new HColumnDescriptor("cf");
        htd.addFamily(hcd);
        IndexSpecification iSpec = new IndexSpecification("spec");
        iSpec.addIndexColumn(hcd, "q", ValueType.String, 10);
        htd.addIndex(iSpec);
        admin.createTable(htd);
        return null;
      }
    };


    PrivilegedExceptionAction createIndexTable = new PrivilegedExceptionAction() {
      @Override
      public Object run() throws Exception {
        HBaseAdmin admin = new HBaseAdmin(conf);
        IndexedHTableDescriptor htd = new IndexedHTableDescriptor("testCreateTable_idx");
        HColumnDescriptor hcd = new HColumnDescriptor("cf");
        htd.addFamily(hcd);
        IndexSpecification iSpec = new IndexSpecification("spec");
        iSpec.addIndexColumn(hcd, "q", ValueType.String, 10);
        htd.addIndex(iSpec);
        admin.createTable(htd);
        return null;
      }
    };

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    HBaseAdmin admin = new HBaseAdmin(conf);
    IndexedHTableDescriptor htd = new IndexedHTableDescriptor("testDisableEnableTable");
    HColumnDescriptor hcd = new HColumnDescriptor("cf");
    htd.addFamily(hcd);
    IndexSpecification iSpec = new IndexSpecification("spec");
    iSpec.addIndexColumn(hcd, "q", ValueType.String, 10);
    htd.addIndex(iSpec);
    admin.createTable(htd);
    ZKAssign.blockUntilNoRIT(HBaseTestingUtility.getZooKeeperWatcher(TEST_UTIL));


    // Creating the operation to be performed by the user

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    HBaseAdmin admin = new HBaseAdmin(conf);
    IndexedHTableDescriptor htd = new IndexedHTableDescriptor("testScanOperation");
    HColumnDescriptor hcd = new HColumnDescriptor("cf");
    htd.addFamily(hcd);
    IndexSpecification iSpec = new IndexSpecification("spec");
    iSpec.addIndexColumn(hcd, "q", ValueType.String, 10);
    htd.addIndex(iSpec);
    admin.createTable(htd);
    ZKAssign.blockUntilNoRIT(HBaseTestingUtility.getZooKeeperWatcher(TEST_UTIL));


    HTable table = new HTable(conf, "testScanOperation");

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    HBaseAdmin admin = new HBaseAdmin(conf);
    IndexedHTableDescriptor htd = new IndexedHTableDescriptor("testCheckAndPut");
    HColumnDescriptor hcd = new HColumnDescriptor("cf");
    htd.addFamily(hcd);
    final IndexSpecification iSpec = new IndexSpecification("spec");
    iSpec.addIndexColumn(hcd, "q", ValueType.String, 10);
    htd.addIndex(iSpec);
    admin.createTable(htd);
    ZKAssign.blockUntilNoRIT(HBaseTestingUtility.getZooKeeperWatcher(TEST_UTIL));


    HTable table = new HTable(conf, "testCheckAndPut");

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    HBaseAdmin admin = new HBaseAdmin(conf);
    IndexedHTableDescriptor htd = new IndexedHTableDescriptor("testMoveRegionOp");
    HColumnDescriptor hcd = new HColumnDescriptor("cf");
    htd.addFamily(hcd);
    IndexSpecification iSpec = new IndexSpecification("spec");
    iSpec.addIndexColumn(hcd, "q", ValueType.String, 10);
    htd.addIndex(iSpec);
    admin.createTable(htd);
    ZKAssign.blockUntilNoRIT(HBaseTestingUtility.getZooKeeperWatcher(TEST_UTIL));


    PrivilegedExceptionAction moveMainTable = new PrivilegedExceptionAction() {

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