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Table level TTL
Row level TTL
Column level TTL
User defined timestamps
Finding the write time
Sample Java Application
You can find a working example of using transactions with Yugabyte in our sample applications . Here is how you can try out this sample application.
- CassandraStockTicker : -------------------- Sample stock ticker app built on CQL. The app models 10,000 stock tickers each of which emits quote data every second. The raw data is written into the 'stock_ticker_raw' table, which retains data for one day. The 'stock_ticker_1min' table models downsampled ticker data, is written to once a minute and retains data for 60 days. Every read query gets the latest value of the stock symbol from the 'stock_ticker_raw' table. Usage: java -jar yb-sample-apps.jar \ --workload CassandraStockTicker \ --nodes 127.0.0.1:9042 Other options (with default values): [ --num_threads_read 32 ] [ --num_threads_write 4 ] [ --num_ticker_symbols 10000 ] [ --data_emit_rate_millis 1000 ] [ --table_ttl_seconds 86400 ]
Browse the Java source code for the batch application to see how everything fits together.