Examples of com.datastax.driver.core.PreparedStatement

com.datastax.driver.core.PreparedStatement
Represents a prepared statement, a query with bound variables that has been prepared (pre-parsed) by the database.
A prepared statement can be executed once concrete values have been provided for the bound variables. A prepared statement and the values for its bound variables constitute a BoundStatement and can be executed (by {@link Session#execute}).
A {@code PreparedStatement} object allows you to define specific defaultsfor the different properties of a {@link Statement} (Consistency level, tracing, ...),in which case those properties will be inherited as default by every BoundedStatement created from the {PreparedStatement}. The default for those {@code PreparedStatement} properties is the same that in {@link Statement} if thePreparedStatement is created by {@link Session#prepare(String)} but will inheritof the properties of the {@link RegularStatement} used for the preparation if{@link Session#prepare(RegularStatement)} is used.

        context.pushCounterStatement(bsWrapper);
    }


    public ListenableFuture<ResultSet> incrementSimpleCounter(DaoOperations context, PropertyMeta counterMeta, Long increment, ConsistencyLevel consistencyLevel) {
        log.debug("Increment immediately simple counter for PersistenceContext '{}' and value '{}'", context, increment);
        PreparedStatement ps = counterQueryMap.get(INCR);
        BoundStatementWrapper bsWrapper = binder.bindForSimpleCounterIncrementDecrement(context, ps, counterMeta, increment, consistencyLevel);
        return context.executeImmediate(bsWrapper);
    }

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        return context.executeImmediate(bsWrapper);
    }


    public ListenableFuture<ResultSet> decrementSimpleCounter(DaoOperations context, PropertyMeta counterMeta, Long decrement, ConsistencyLevel consistencyLevel) {
        log.debug("Decrement immediately simple counter for PersistenceContext '{}' and value '{}'", context, decrement);
        PreparedStatement ps = counterQueryMap.get(DECR);
        BoundStatementWrapper bsWrapper = binder.bindForSimpleCounterIncrementDecrement(context, ps, counterMeta, decrement, consistencyLevel);
        return context.executeImmediate(bsWrapper);
    }

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    public Long getSimpleCounter(DaoOperations context, PropertyMeta counterMeta, ConsistencyLevel consistencyLevel) {
        if (log.isDebugEnabled()) {
            log.debug("Get simple counter value for counterMeta '{}' PersistenceContext '{}' using Consistency level '{}'", counterMeta, context, consistencyLevel);
        }
        PreparedStatement ps = counterQueryMap.get(SELECT);
        BoundStatementWrapper bsWrapper = binder.bindForSimpleCounterSelect(context, ps, counterMeta, consistencyLevel);
        final ListenableFuture<ResultSet> resultSetFuture = context.executeImmediate(bsWrapper);
        final ListenableFuture<Row> futureRow = asyncUtils.transformFuture(resultSetFuture, RESULTSET_TO_ROW, executorService);
        final Row row = asyncUtils.buildInterruptible(futureRow).getImmediately();
        return rowToLongFunction(ACHILLES_COUNTER_VALUE).apply(row);

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        return rowToLongFunction(ACHILLES_COUNTER_VALUE).apply(row);
    }


    public void bindForSimpleCounterDelete(DaoOperations context, PropertyMeta counterMeta) {
        log.debug("Push simple counter deletion statement for counterMeta '{}' and PersistenceContext '{}'", counterMeta, context);
        PreparedStatement ps = counterQueryMap.get(DELETE);
        BoundStatementWrapper bsWrapper = binder.bindForSimpleCounterDelete(context, ps, counterMeta);
        context.pushCounterStatement(bsWrapper);
    }

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    public void pushClusteredCounterIncrementStatement(DaoOperations context, PropertyMeta counterMeta, Long increment) {
        if (log.isDebugEnabled()) {
            log.debug("Push clustered counter increment statement for counterMeta '{}' and PersistenceContext '{}' and value '{}'", counterMeta, context, increment);
        }


        PreparedStatement ps = clusteredCounterQueryMap.get(context.getEntityClass()).get(INCR).get(counterMeta.getPropertyName());
        BoundStatementWrapper bsWrapper = binder.bindForClusteredCounterIncrementDecrement(context, ps, counterMeta, increment);
        context.pushCounterStatement(bsWrapper);
    }

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    }


    public ListenableFuture<Row> getClusteredCounter(DaoOperations context) {
        log.debug("Get clustered counter for PersistenceContext '{}'", context);
        EntityMeta entityMeta = context.getEntityMeta();
        PreparedStatement ps = clusteredCounterQueryMap.get(entityMeta.getEntityClass()).get(SELECT).get(SELECT_ALL.name());
        ConsistencyLevel consistencyLevel = overrider.getReadLevel(context);
        BoundStatementWrapper bsWrapper = binder.bindForClusteredCounterSelect(context, ps, false, consistencyLevel);
        final ListenableFuture<ResultSet> resultSetFuture = context.executeImmediate(bsWrapper);
        return asyncUtils.transformFuture(resultSetFuture, RESULTSET_TO_ROW, executorService);
    }

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    public Long getClusteredCounterColumn(DaoOperations context, PropertyMeta counterMeta) {
        log.debug("Get clustered counter for PersistenceContext '{}'", context);


        final String cql3ColumnName = counterMeta.getCQL3ColumnName();
        PreparedStatement ps = clusteredCounterQueryMap.get(context.getEntityClass()).get(SELECT).get(cql3ColumnName);
        ConsistencyLevel readLevel = overrider.getReadLevel(context, counterMeta);
        BoundStatementWrapper bsWrapper = binder.bindForClusteredCounterSelect(context, ps, counterMeta.structure().isStaticColumn(), readLevel);


        final ListenableFuture<ResultSet> resultSetFuture = context.executeImmediate(bsWrapper);
        final ListenableFuture<Row> futureRow = asyncUtils.transformFuture(resultSetFuture, RESULTSET_TO_ROW, executorService);

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        return rowToLongFunction(cql3ColumnName).apply(row);
    }


    public void bindForClusteredCounterDelete(DaoOperations context) {
        log.debug("Push clustered counter deletion statement for PersistenceContext '{}'", context);
        PreparedStatement ps = clusteredCounterQueryMap.get(context.getEntityClass()).get(DELETE).get(DELETE_ALL.name());
        BoundStatementWrapper bsWrapper = binder.bindForClusteredCounterDelete(context, ps);
        context.pushCounterStatement(bsWrapper);
    }

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    public ListenableFuture<Row> loadEntity(DaoOperations context) {
        log.debug("Load entity for PersistenceContext '{}'", context);


        Class<?> entityClass = context.getEntityClass();
        PreparedStatement ps = selectPSs.get(entityClass);


    final EntityMeta entityMeta = context.getEntityMeta();


        final ListenableFuture<ResultSet> resultSetFuture = executeReadWithConsistency(context, ps, entityMeta.structure().hasOnlyStaticColumns());
        return asyncUtils.transformFuture(resultSetFuture, RESULTSET_TO_ROW, executorService);

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        final ListenableFuture<ResultSet> resultSetFuture = executeReadWithConsistency(context, ps, entityMeta.structure().hasOnlyStaticColumns());
        return asyncUtils.transformFuture(resultSetFuture, RESULTSET_TO_ROW, executorService);
    }


    public BoundStatementWrapper bindForSliceQuerySelect(SliceQueryProperties<?> sliceQueryProperties, ConsistencyLevel defaultReadConsistencyLevel) {
        final PreparedStatement ps = cacheManager.getCacheForSliceSelectAndIterator(session, dynamicPSCache, sliceQueryProperties);
        return buildBSForSliceQuery(sliceQueryProperties, defaultReadConsistencyLevel, ps);
    }

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