Examples of org.apache.cassandra.db.ExpiringColumn

org.apache.cassandra.db.ExpiringColumn
Alternative to Column that have an expiring time. ExpiringColumn is immutable (as Column is). Note that ExpiringColumn does not override Column.getMarkedForDeleteAt, which means that it's in the somewhat unintuitive position of being deleted (after its expiration) without having a time-at-which-it-became-deleted. (Because ttl is a server-side measurement, we can't mix it with the timestamp field, which is client-supplied and whose resolution we can't assume anything about.)

        SSTableWriter writer = new SSTableWriter(tempSS.getPath(), 2);


        int nowInSec = (int)(System.currentTimeMillis() / 1000) + 42; //live for 42 seconds
        // Add rowA
        cfamily.addColumn(ByteBufferUtil.bytes("colA"), ByteBufferUtil.bytes("valA"), System.currentTimeMillis());
        cfamily.addColumn(new ExpiringColumn(ByteBufferUtil.bytes("colExp"), ByteBufferUtil.bytes("valExp"), System.currentTimeMillis(), 42, nowInSec));
        writer.append(Util.dk("rowA"), cfamily);
        cfamily.clear();


        // Add rowB
        cfamily.addColumn(ByteBufferUtil.bytes("colB"), ByteBufferUtil.bytes("valB"), System.currentTimeMillis());

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        SSTableWriter writer = new SSTableWriter(tempSS.getPath(), 2);
        
        int nowInSec = (int)(System.currentTimeMillis() / 1000) + 42; //live for 42 seconds
        // Add rowA
        cfamily.addColumn(new QueryPath("Standard1", null, ByteBufferUtil.bytes("colA")), ByteBufferUtil.bytes("valA"), System.currentTimeMillis());
        cfamily.addColumn(null, new ExpiringColumn(ByteBufferUtil.bytes("colExp"), ByteBufferUtil.bytes("valExp"), System.currentTimeMillis(), 42, nowInSec));
        writer.append(Util.dk("rowA"), cfamily);
        cfamily.clear();
        
        // Add rowB
        cfamily.addColumn(new QueryPath("Standard1", null, ByteBufferUtil.bytes("colB")), ByteBufferUtil.bytes("valB"), System.currentTimeMillis());

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        SSTableWriter writer = new SSTableWriter(tempSS.getPath(), 2);


        int nowInSec = (int)(System.currentTimeMillis() / 1000) + 42; //live for 42 seconds
        // Add rowA
        cfamily.addColumn(ByteBufferUtil.bytes("colA"), ByteBufferUtil.bytes("valA"), System.currentTimeMillis());
        cfamily.addColumn(new ExpiringColumn(ByteBufferUtil.bytes("colExp"), ByteBufferUtil.bytes("valExp"), System.currentTimeMillis(), 42, nowInSec));
        writer.append(Util.dk("rowA"), cfamily);
        cfamily.clear();


        // Add rowB
        cfamily.addColumn(ByteBufferUtil.bytes("colB"), ByteBufferUtil.bytes("valB"), System.currentTimeMillis());

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            JsonColumn col = new JsonColumn<List>((List) c, cfm, (superName != null));
            QueryPath path = new QueryPath(cfm.cfName, superName, col.getName());


            if (col.isExpiring())
            {
                cfamily.addColumn(null, new ExpiringColumn(col.getName(), col.getValue(), col.timestamp, col.ttl, col.localExpirationTime));
            }
            else if (col.isCounter())
            {
                cfamily.addColumn(null, new CounterColumn(col.getName(), col.getValue(), col.timestamp, col.timestampOfLastDelete));
            }

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