// [END bigtable_filters_limit_row_sample]
// [END bigtable_filters_limit_row_regex]
// [END bigtable_filters_limit_cells_per_col]
// [END bigtable_filters_limit_cells_per_row]
// [END bigtable_filters_limit_cells_per_row_offset]
// [END bigtable_filters_limit_col_family_regex]
// [END bigtable_filters_limit_col_qualifier_regex]
// [END bigtable_filters_limit_col_range]
// [END bigtable_filters_limit_value_range]
// [END bigtable_filters_limit_value_regex]
// [END bigtable_filters_limit_timestamp_range]
// [END bigtable_filters_limit_block_all]
// [END bigtable_filters_limit_pass_all]
// [END bigtable_filters_modify_strip_value]
// [END bigtable_filters_modify_apply_label]
// [END bigtable_filters_composing_chain]
// [END bigtable_filters_composing_interleave]
// [END bigtable_filters_composing_condition]
// [START bigtable_filters_limit_row_sample]
/// <summary>
/// /// Read using a row sample filter from an existing table.
///</summary>
/// <param name="projectId">Your Google Cloud Project ID.</param>
/// <param name="instanceId">Your Google Cloud Bigtable Instance ID.</param>
/// <param name="tableId">Your Google Cloud Bigtable table ID.</param>
public string filterLimitRowSample(string projectId = "YOUR-PROJECT-ID", string instanceId = "YOUR-INSTANCE-ID", string tableId = "YOUR-TABLE-ID")
{
// A filter that matches cells from a row with probability .75
RowFilter filter = RowFilters.RowSample(.75);
return(readFilter(projectId, instanceId, tableId, filter));
}
public void Condition()
{
var filter = RowFilters.Condition(
RowFilters.ColumnQualifierRegex("last_name"),
RowFilters.RowSample(0.5),
RowFilters.FamilyNameExact("address"));
Assert.NotNull(filter.Condition);
Assert.Equal(
RowFilters.ColumnQualifierRegex("last_name"),
filter.Condition.PredicateFilter);
Assert.Equal(RowFilters.RowSample(0.5), filter.Condition.TrueFilter);
Assert.Equal(RowFilters.FamilyNameExact("address"), filter.Condition.FalseFilter);
}
public void RowSample_Validations()
{
Assert.Throws <ArgumentOutOfRangeException>(() => RowFilters.RowSample(-0.01));
Assert.Throws <ArgumentOutOfRangeException>(() => RowFilters.RowSample(1.01));
}
public void RowSample()
{
var filter = RowFilters.RowSample(0.25);
Assert.Equal(0.25, filter.RowSampleFilter);
}
