On Fri, Jan 7, 2011 at 12:12 PM, Arijit Mukherjee <ariji...@gmail.com>wrote:
> Thank you. And is it similar if I want to search a subcolumn within a > given supercolumn? I mean I have the supercolumn key and the subcolumn > key - can I fetch the particular subcolumn? > > Can you share a small piece of example code for both? > Have you gone through the examples @ https://github.com/rantav/hector/blob/master/core/src/test/java/me/prettyprint/hector/api/ApiV2SystemTest.java? For now, here are some snippets to help you: 1) So, say, for a given row and a given super-column, if u want to fetch one particular sub-column, this is how you can do it: SubSliceQuery subSliceQuery = HFactory.createSubSliceQuery(keyspace, .., .., .., ..) subSliceQuery.setColumnFamily(<name_of_col_family>) .setKey(<row_key>).setSuperColumn(<super-column-key>).setRange(subCol, subCol, false, 1) You can manipulate the range, if you want more than 1 sub-column from there. 2) Inserting a new super-column (with its sub-columns) in a row HSuperColumn superCol = HFactory.createSuperColumn(<super-column-key>, [HFactory.createColumn(<sub-column-key>, new byte[0], US, BAS)], SS, US, BAS) - /* SS, US, etc are serializers used here. */ mutator.addInsertion(<row-key>, <name_of_col_family>, superCol) This example inserts in a row a new super-column that has 1 sub-column (you can add as many as u like to the list of sub-cols being passed) <#12d5f46d9509473c_> <#12d5f46d9509473c_> <#12d5f46d9509473c_> <#12d5f46d9509473c_> <#> <#> <#> <#>
