private static object CreateNestedFamily(string tableId)
{
// [START bigtable_create_bigtableTableAdminClient]
BigtableTableAdminClient bigtableTableAdminClient = BigtableTableAdminClient.Create();
// [END bigtable_create_bigtableTableAdminClient]
Console.WriteLine("Creating column family cf5 with a nested GC rule...");
// [START bigtable_create_family_gc_nested]
// Create a nested GC rule:
// Drop cells that are either older than the 10 recent versions
// OR
// Drop cells that are older than a month AND older than the 2 recent versions.
// Initialize request argument(s).
GcRule.Types.Intersection intersectionRule = new GcRule.Types.Intersection
{
Rules =
{
new GcRule {
MaxNumVersions = 2
},
new GcRule {
MaxAge = Duration.FromTimeSpan(TimeSpan.FromDays(5))
}
}
};
GcRule.Types.Union nestedRule = new GcRule.Types.Union
{
Rules =
{
new GcRule {
MaxNumVersions = 10
},
new GcRule {
Intersection = intersectionRule
}
}
};
GcRule gcRule = new GcRule {
Union = nestedRule
};
// Column family to create
ColumnFamily columnFamily = new ColumnFamily {
GcRule = gcRule
};
TableName tableName = new TableName(projectId, instanceId, tableId);
// Modification to create column family
ModifyColumnFamiliesRequest.Types.Modification modification = new ModifyColumnFamiliesRequest.Types.Modification
{
Create = columnFamily,
Id = "cf5"
};
ModifyColumnFamiliesRequest request = new ModifyColumnFamiliesRequest
{
TableName = tableName,
Modifications = { modification }
};
try
{
// Make the request
Table response = bigtableTableAdminClient.ModifyColumnFamilies(request);
Console.WriteLine("Created column family");
// [END bigtable_create_family_gc_nested]
// Print table information.
GetTable(tableId);
// [START bigtable_create_family_gc_nested]
}
catch (Exception ex)
{
Console.WriteLine($"Error creating column family {ex.Message}");
}
// [END bigtable_create_family_gc_nested]
return(0);
}
private static object CreateUnionFamily(string tableId)
{
// [START bigtable_create_bigtableTableAdminClient]
BigtableTableAdminClient bigtableTableAdminClient = BigtableTableAdminClient.Create();
// [END bigtable_create_bigtableTableAdminClient]
Console.WriteLine("Creating column family cf3 with union GC rule...");
// [START bigtable_create_family_gc_union]
// Create a column family with GC policy to drop data that matches at least one condition.
// Initialize request argument(s).
// Define a GC rule to drop cells older than 5 days or not the most recent version.
GcRule.Types.Union unionRule = new GcRule.Types.Union
{
Rules =
{
new GcRule {
MaxNumVersions = 1
},
new GcRule {
MaxAge = Duration.FromTimeSpan(TimeSpan.FromDays(5))
}
}
};
GcRule gcRule = new GcRule {
Union = unionRule
};
// Column family to create
ColumnFamily columnFamily = new ColumnFamily {
GcRule = gcRule
};
TableName tableName = new TableName(projectId, instanceId, tableId);
// Modification to create column family
ModifyColumnFamiliesRequest.Types.Modification modification = new ModifyColumnFamiliesRequest.Types.Modification
{
Create = columnFamily,
Id = "cf3"
};
ModifyColumnFamiliesRequest request = new ModifyColumnFamiliesRequest
{
TableName = tableName,
Modifications = { modification }
};
try
{
// Make the request
Table response = bigtableTableAdminClient.ModifyColumnFamilies(request);
Console.WriteLine("Created column family");
// [END bigtable_create_family_gc_union]
// Print table information.
GetTable(tableId);
// [START bigtable_create_family_gc_union]
}
catch (Exception ex)
{
Console.WriteLine($"Error creating column family {ex.Message}");
}
// [END bigtable_create_family_gc_union]
return(0);
}
