Examples of com.datastax.driver.core.Query

com.datastax.driver.core.Query
An executable query.
This represents either a {@link Statement} or a {@link BoundStatement}along with the query options (consistency level, whether to trace the query, ...).

            }
        }
        selectWhere.and(indClause);
        Clause keyClause = QueryBuilder.eq("colvalue", ByteBuffer.wrap(key));
        selectWhere.and(keyClause);
        Query query = selectWhere.limit(1);
        ResultSet resultSet = session.execute(query);
        return !resultSet.isExhausted();
   }

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                batchListener.beforeFetchingNextBatch();


            String rowKeyString = StandardConverters.convertFromBytes(String.class, rowKey);
            Select selectQuery = QueryBuilder.select().all().from(keySpace, indTable).allowFiltering();
            Where whereClause = Cql3Util.createRowQuery(from, to, columnMeta, selectQuery, rowKeyString);
            Query query = null;


            if (batchSize != null)
                query = whereClause.limit(batchSize);
            else
                query = whereClause.disableTracing();

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            value = Cql3Util.checkForBoolean(value);


            Clause valClause = QueryBuilder.eq("colname", value);
            selectWhere.and(valClause);


            Query query = selectWhere.disableTracing();


            System.out.println("QUERY of STARTQUERYMANYKEY IS: " + query);
            Future future = session.executeAsync(query);
            futures.add(future);
        }

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            throw new IllegalArgumentException("action param is missing ActionEnum so we know to remove entire row or just columns in the row");
        switch (action.getAction()) {
        case REMOVE_ENTIRE_ROW:
            String rowKey = StandardConverters.convertFromBytes(String.class, action.getRowKey());
            Clause eqClause = QueryBuilder.eq("id", rowKey);
            Query query = QueryBuilder.delete().from(keys, table).where(eqClause);
            session.execute(query);
            break;
        case REMOVE_COLUMNS_FROM_ROW:
            removeColumns(action, table);
            break;

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    }


    private void removeColumnImpl(String rowKey, String table, String colName) {
        Clause eqClause = QueryBuilder.eq("id", rowKey);
        Clause eqColClause = QueryBuilder.eq("colname", colName);
        Query query = QueryBuilder.delete().from(keys, table).where(eqClause).and(eqColClause);
        session.execute(query);
    }

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            if (log.isInfoEnabled())
                log.info("Index: " + column.toString() + " already removed.");
        } else {
            Clause eqClause = QueryBuilder.eq("id", rowKey);
            Clause fkClause = QueryBuilder.eq("colvalue", ByteBuffer.wrap(value));
            Query query = QueryBuilder.delete().from(keys, table).where(eqClause).and(fkClause);
            session.execute(query);
        }
    }

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        Where selectWhere = selectQuery.where();
        Clause rkClause = QueryBuilder.eq("id", rowKey);
        selectWhere.and(rkClause);
        Clause keyClause = QueryBuilder.lte("colvalue", ByteBuffer.wrap(key));
        selectWhere.and(keyClause);
        Query query = selectWhere.limit(1);
        //System.out.println("QUERY FOR FINDINDEXROW IS: " + query);
        ResultSet resultSet = session.execute(query);
        return !resultSet.isExhausted();
    }

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            if (list != null)
                list.beforeFetchingNextBatch();
            try {
                Clause inClause = QueryBuilder.in("id", keyStrings);
                Query query = QueryBuilder.select().all().from(keys, cf.getColumnFamily()).where(inClause).limit(batchSize);
                resultSet = session.execute(query);
            } catch (Exception e) {
                System.out.println(" Exception:" + e.getMessage());
            }
            if (list != null) list.afterFetchingNextBatch(batchSize);

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            if (list != null)
                list.beforeFetchingNextBatch();
            try {
                Clause inClause = QueryBuilder.in("id", keyStrings);
                Query query = QueryBuilder.select().all().from(keys, cf.getColumnFamily()).where(inClause).limit(batchSize);
                resultSet = session.execute(query);
            } catch (Exception e) {
                System.out.println(" Exception:" + e.getMessage());
            }
            if (list != null) list.afterFetchingNextBatch(batchSize);

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    @Override
    public void applyBatch(BatchContext batchContext) {
        Batch batch = validateAndGetBatch(batchContext);
        List<Object> bindArguments = ((CqlBatchContext)batchContext).getBindArguments();
        Query query;
        if (bindArguments.isEmpty()) {
            query = new SimpleStatement(batch.getQueryString());
        } else {
            query = session.prepare(batch.getQueryString()).bind(bindArguments.toArray());
        }
        query.setConsistencyLevel(defaultConsistencyLevel);
        session.execute(query);
        ((CqlBatchContext)batchContext).reset();
    }

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