public List <NColumn <N, V> > getColumns <N, V>(string keyspace, Object columnFamily, Object key, HashSet <String> columnNames)
{
client.set_keyspace(keyspace);
SlicePredicate sp = new SlicePredicate();
sp.Column_names = columnNames.ToByteArrayListFromCollection <string>();
var results = ThriftUtility.ToNColumnList <N, V>(client.get_slice(key.ToByteArray(),
new ColumnParent()
{
Column_family = columnFamily.ToString()
}, sp, consistencyLevel));
return(results);
}
public ColumnSlice <N, V> getColumns <N, V>(string keyspace, Object columnFamily, Object key, N[] columnNames)
{
client.set_keyspace(keyspace);
byte[] binaryKey = key.ToByteArray();
ColumnParent cp = new ColumnParent()
{
Column_family = columnFamily.ToString()
};
SlicePredicate sp = new SlicePredicate();
sp.Column_names = columnNames.ToByteArrayListFromCollection <N>();
var result = ThriftUtility.ToNColumnList <N, V>(client.get_slice(binaryKey, cp, sp, consistencyLevel));
ColumnSlice <N, V> cslice = new ColumnSlice <N, V>();
cslice.Columns = result;
return(cslice);
}
/// <summary>
/// Returns the columns in the range from the start column to the finish column for a given row key
/// </summary>
/// <param name="keyspace"></param>
/// <param name="columnFamily"></param>
/// <param name="key"></param>
/// <param name="start">start column name</param>
/// <param name="finish">end column name</param>
/// <param name="count"></param>
/// <param name="reversed"></param>
/// <returns></returns>
public List <NColumn <byte, byte> > getColumns(string keyspace, Object columnFamily, Object key, Object start,
Object finish, int count, Boolean reversed)
{
client.set_keyspace(keyspace);
byte[] binaryKey = key.ToByteArray();
ColumnParent cp = new ColumnParent()
{
Column_family = columnFamily.ToString()
};
SlicePredicate sp = new SlicePredicate();
sp.Slice_range = new SliceRange();
sp.Slice_range.Start = start.ToByteArray();
sp.Slice_range.Finish = finish.ToByteArray();
sp.Slice_range.Reversed = reversed;
sp.Slice_range.Count = count;
return(ThriftUtility.ToNColumnList <byte, byte>(client.get_slice(binaryKey, cp, sp, consistencyLevel)));
}
/// <summary>
/// Generic method to get the columns.
/// </summary>
/// <typeparam name="N">Type of column name</typeparam>
/// <typeparam name="V">Type of column value</typeparam>
/// <param name="keyspace"></param>
/// <param name="columnFamily"></param>
/// <param name="key">Row key</param>
/// <returns>List of NColumns of N,V types</returns>
public List <NColumn <N, V> > getAllColumns <N, V>(string keyspace, Object columnFamily, Object key)
{
client.set_keyspace(keyspace);
byte[] binaryKey = key.ToByteArray();
ColumnParent cp = new ColumnParent()
{
Column_family = columnFamily.ToString()
};
SlicePredicate sp = new SlicePredicate();
sp.Slice_range = new SliceRange();
sp.Slice_range.Start = new byte[0];
sp.Slice_range.Finish = new byte[0];
sp.Slice_range.Reversed = false;
sp.Slice_range.Count = ALL_COUNT;
var result = ThriftUtility.ToNColumnList <N, V>(client.get_slice(binaryKey, cp, sp, consistencyLevel));
return(result);
}