Examples of org.apache.hadoop.hbase.filter.ColumnPaginationFilter

org.apache.hadoop.hbase.filter.ColumnPaginationFilter
A filter, based on the ColumnCountGetFilter, takes two arguments: limit and offset. This filter can be used for row-based indexing, where references to other tables are stored across many columns, in order to efficient lookups and paginated results for end users. Only most recent versions are considered for pagination.

      switch (FilterType.valueOf(type)) {
      case ColumnCountGetFilter:
        filter = new ColumnCountGetFilter(limit);
        break;
      case ColumnPaginationFilter:
        filter = new ColumnPaginationFilter(limit, offset);
        break;
      case ColumnPrefixFilter:
        filter = new ColumnPrefixFilter(Base64.decode(value));
        break;
      case ColumnRangeFilter:

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      switch (FilterType.valueOf(type)) {
      case ColumnCountGetFilter:
        filter = new ColumnCountGetFilter(limit);
        break;
      case ColumnPaginationFilter:
        filter = new ColumnPaginationFilter(limit, offset);
        break;
      case ColumnPrefixFilter:
        filter = new ColumnPrefixFilter(Base64.decode(value));
        break;
      case ColumnRangeFilter:

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      switch (FilterType.valueOf(type)) {
      case ColumnCountGetFilter:
        filter = new ColumnCountGetFilter(limit);
        break;
      case ColumnPaginationFilter:
        filter = new ColumnPaginationFilter(limit, offset);
        break;
      case ColumnPrefixFilter:
        filter = new ColumnPrefixFilter(Base64.decode(value));
        break;
      case ColumnRangeFilter:

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      switch (FilterType.valueOf(type)) {
      case ColumnCountGetFilter:
        filter = new ColumnCountGetFilter(limit);
        break;
      case ColumnPaginationFilter:
        filter = new ColumnPaginationFilter(limit, offset);
        break;
      case ColumnPrefixFilter:
        filter = new ColumnPrefixFilter(Base64.decode(value));
        break;
      case ColumnRangeFilter:

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          SchemaPlatformBridge.get().debugStringsForCompareFilter(ffilter));
    } else if (filter instanceof ColumnPrefixFilter) {
      final ColumnPrefixFilter cpfilter = (ColumnPrefixFilter) filter;
      return String.format("(HColumn starts with %s)", Bytes.toStringBinary(cpfilter.getPrefix()));
    } else if (filter instanceof ColumnPaginationFilter) {
      final ColumnPaginationFilter cpfilter = (ColumnPaginationFilter) filter;
      return String.format("(%d cells from offset %d)", cpfilter.getLimit(), cpfilter.getOffset());
    } else {
      return filter.toString();
    }
  }

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    FilterList requestFilter = new FilterList(FilterList.Operator.MUST_PASS_ALL);
    // Order that filters get added matters. Earlier in the list, the higher priority.
    if (mInputFilter != null) {
      requestFilter.addFilter(mInputFilter.toHBaseFilter(kijiColumnName, context));
    }
    Filter paginationFilter = new ColumnPaginationFilter(mMaxQualifiers, mOffset);
    requestFilter.addFilter(paginationFilter);
    return requestFilter;
  }

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    infoNameFilter.addFilter(infoLgFilter);
    Filter infoNameQualifierFilter = SchemaPlatformBridge.get().createQualifierFilter(
        CompareFilter.CompareOp.EQUAL,
        hbaseColumn.getQualifier());
    infoNameFilter.addFilter(infoNameQualifierFilter);
    infoNameFilter.addFilter(new ColumnPaginationFilter(1, 0));


    FilterList purchasesFilter = new FilterList(FilterList.Operator.MUST_PASS_ALL);
    Filter familyFilter = SchemaPlatformBridge.get().createFamilyFilter(
        CompareFilter.CompareOp.EQUAL,
        hPurchasesColumn.getFamily());

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    infoNameFilter.addFilter(infoLgFilter);
    Filter infoNameQualifierFilter = SchemaPlatformBridge.get().createQualifierFilter(
        CompareFilter.CompareOp.EQUAL,
        hbaseColumn.getQualifier());
    infoNameFilter.addFilter(infoNameQualifierFilter);
    infoNameFilter.addFilter(new ColumnPaginationFilter(1, 0));


    FilterList purchasesFilter = new FilterList(FilterList.Operator.MUST_PASS_ALL);
    Filter familyFilter = SchemaPlatformBridge.get().createFamilyFilter(
        CompareFilter.CompareOp.EQUAL,
        hPurchasesColumn.getFamily());

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      //
      // Note: we could also use this for a map-type family if max-versions == 1,
      //     by setting limit = Integer.MAX_VALUE.
      final int limit = 1;
      final int offset = 0;
      filter.addFilter(new ColumnPaginationFilter(limit, offset));
    }


    // Add the optional user-specified column filter, if specified:
    if (columnRequest.getFilter() != null) {
      filter.addFilter(

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      switch (FilterType.valueOf(type)) {
      case ColumnCountGetFilter:
        filter = new ColumnCountGetFilter(limit);
        break;
      case ColumnPaginationFilter:
        filter = new ColumnPaginationFilter(limit, offset);
        break;
      case ColumnPrefixFilter:
        filter = new ColumnPrefixFilter(Base64.decode(value));
        break;
      case ColumnRangeFilter:

View Full Code Here

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