Class: Hbase::Client

Inherits:
Object
  • Object
show all
Defined in:
lib/hbase_thrift_ruby.rb

Instance Method Summary collapse

Instance Method Details

#get(table, columns, filters, obj = {}) ⇒ Object 



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# File 'lib/hbase_thrift_ruby.rb', line 22

def get(table,columns,filters,obj={})
  scan = HBase::TScan.new
  scan.filterString = filters
  scanner = scannerOpenWithScan(table, scan, obj)
  
  results = []
  scan_end = false
  rows = []
  
  while !scan_end
    scan_result = scannerGet(scanner)
    if scan_result.length > 0
      rows << scan_result[0].row
    else
      scan_end = true
    end
  end
  
  rows.each do |row|
    row_results = []
    if columns[0] == '*'
      getRow(table,row,{})[0].columns.each do |val|
        row_results << val[1].value
      end
    else
      columns.each do |col|
        col = "#{col}:" if col.match(/:/).nil?
        row_results << getRow(table,row,{})[0].columns[col].value rescue row_results << nil
      end
    end
    results << row_results
  end
  
  results
end

#incrementRow(table_name, amount) ⇒ Object 



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# File 'lib/hbase_thrift_ruby.rb', line 16

def incrementRow(table_name,amount)
  c_row = get('table_indices','0',table_name,{})[0].value.to_i
  n_row = c_row+amount
  mutateRow('table_indices','0',[HBase::Mutation.new(column: table_name, value: n_row.to_s)],{})
  c_row
end