Examples of KijiTableWriter

org.kiji.schema.KijiTableWriter
Interface for modifying a Kiji table.
Wraps methods from KijiPutter, KijiIncrementer, and KijiDeleter. To get a KijiTableWriter, use {@link org.kiji.schema.KijiTable#openTableWriter()}or {@link org.kiji.schema.KijiTable#getWriterFactory()}.

Unless otherwise specified, writers are not thread-safe and must be synchronized externally.

Examples of org.kiji.schema.KijiTableWriter

    final KijiTable table = mKiji.openTable("user");
    try {
      final HBaseKijiTable htable = HBaseKijiTable.downcast(table);
      final TableLayoutMonitor monitor = htable.getTableLayoutMonitor();
      assertTrue(monitor.getLayoutConsumers().isEmpty());
      final KijiTableWriter writer = table.openTableWriter();
      try {
        assertTrue(monitor.getLayoutConsumers().size() == 1);


        // We can write to info:name, but not family:column.
        writer.put(table.getEntityId("foo"), "info", "name", "new-val");
        try {
          writer.put(table.getEntityId("foo"), "family", "column", "foo-val");
          fail("writer.put() should have thrown an IOException.");
        } catch (NoSuchColumnException nsce) {
          assertEquals("family:column", nsce.getMessage());
        }


        // Update the table layout.
        final KijiTableLayout newLayout =
            KijiTableLayout.newLayout(KijiTableLayouts.getLayout(KijiTableLayouts.SIMPLE));
        monitor.updateLayoutConsumers(newLayout);


        // Now we can write to family:column, but not info:name.
        writer.put(table.getEntityId("foo"), "family", "column", "foo-val");
        try {
          writer.put(table.getEntityId("foo"), "info", "name", "two-val");
          fail("writer.put() should have thrown an IOException.");
        } catch (NoSuchColumnException nsce) {
          assertEquals("info:name", nsce.getMessage());
        }
      } finally {
        writer.close();
      }
    } finally {
      table.release();
    }
  }

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Examples of org.kiji.schema.KijiTableWriter

    kiji.createTable(KijiTableLayouts.getLayout(KijiTableLayouts.SIMPLE_FORMATTED_EID));


    final KijiTable table = kiji.openTable("table");
    try {


      final KijiTableWriter writer = table.openTableWriter();
      try {
        writer.put(table.getEntityId("row1"), "family", "column", 0L, "Value at timestamp 0.");
        writer.put(table.getEntityId("row1"), "family", "column", 1L, "Value at timestamp 1.");
      } finally {
        writer.close();
      }


      final KijiTableReader reader = table.openTableReader();
      try {
        final KijiDataRequest dataRequest = KijiDataRequest.builder()

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Examples of org.kiji.schema.KijiTableWriter

      List<KijiColumnName> columns,
      TimestampMode tsMode,
      Long timestamp)
      throws Exception {


    final KijiTableWriter writer = table.openTableWriter();
    try {
      if (columns.isEmpty()) {
        // Row wide delete:
        switch (tsMode) {
        case UPTO: {
          if (mayProceed("Are you sure you want to delete all cells with timestamp <= %d"
              + " from row '%s' in table '%s'?",
              timestamp, entityId, table.getURI())) {
            writer.deleteRow(entityId, timestamp);
          }
          return SUCCESS;
        }
        case ALL: {
          if (mayProceed("Are you sure you want to delete row '%s' from table '%s'?",
              entityId, table.getURI())) {
            writer.deleteRow(entityId);
          }
          return SUCCESS;
        }
        case EXACT:
        case LATEST:
          throw new IllegalArgumentException(
              "Row-wide delete with exact or latest timestamp are not implemented.");
        default:
          throw new RuntimeException("Unhandled timestamp mode: " + tsMode);
        }


      } else {
        // Targeting a set of columns:
        // Normalize the columns, and partition families vs individual columns.
        final Set<String> families = Sets.newTreeSet();
        for (KijiColumnName column : columns) {
          if (!column.isFullyQualified()) {
            families.add(column.getFamily());
          }
        }


        final Set<KijiColumnName> groupColumns = Sets.newTreeSet();
        for (KijiColumnName column : columns) {
          // Do not include columns whose family is already specified for deletion:
          if (column.isFullyQualified() && !families.contains(column.getFamily())) {
            groupColumns.add(column);
          }
        }


        Preconditions.checkArgument(families.isEmpty()
            || ((tsMode != TimestampMode.EXACT) && (tsMode != TimestampMode.LATEST)),
            "Family-wide delete with exact or latest timestamp are not implemented.");


        switch (tsMode) {
        case EXACT: {
          Preconditions.checkState(families.isEmpty());
          if (!mayProceed("Are you sure you want to delete cell with timestamp %d of columns %s "
              + "from row '%s' in table '%s'?",
              timestamp, Joiner.on(",").join(columns), entityId, table.getURI())) {
            return SUCCESS;
          }
          for (KijiColumnName column : groupColumns) {
            writer.deleteCell(entityId, column.getFamily(), column.getQualifier(), timestamp);
          }
          break;
        }
        case LATEST: {
          Preconditions.checkState(families.isEmpty());
          if (!mayProceed("Are you sure you want to delete the most recent cells of columns %s "
              + "from row '%s' in table '%s'?",
              timestamp, Joiner.on(",").join(columns), entityId, table.getURI())) {
            return SUCCESS;
          }
          for (KijiColumnName column : groupColumns) {
            writer.deleteCell(
                entityId, column.getFamily(), column.getQualifier(), HConstants.LATEST_TIMESTAMP);
          }
          break;
        }
        case UPTO: {
          if (!mayProceed("Are you sure you want to delete all cells of columns %s "
              + "with timestamp <= %d from row '%s' in table '%s'?",
              Joiner.on(",").join(columns), timestamp, entityId, table.getURI())) {
            return SUCCESS;
          }
          for (String family : families) {
            writer.deleteFamily(entityId, family, timestamp);
          }
          for (KijiColumnName column : groupColumns) {
            writer.deleteColumn(entityId, column.getFamily(), column.getQualifier(), timestamp);
          }
          break;
        }
        case ALL: {
          if (!mayProceed("Are you sure you want to delete columns %s from row '%s' in table '%s'?",
              Joiner.on(",").join(columns), entityId, table.getURI())) {
            return SUCCESS;
          }
          for (String family : families) {
            writer.deleteFamily(entityId, family);
          }
          for (KijiColumnName column : groupColumns) {
            writer.deleteColumn(entityId, column.getFamily(), column.getQualifier());
          }
          break;
        }
        default:
          throw new RuntimeException("Unhandled timestamp mode: " + tsMode);
        }


        return SUCCESS;
      }


    } finally {
      writer.close();
    }
  }

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