How to use com.englishtown.vertx.cassandra

  /**
   * {@inheritDoc}
   */
  @Override
  public void close() throws Exception {
    session.close();
  }
}

/**
 * Returns cassandra metadata
 *
 * @return returns the cassandra metadata for the current session
 */
@Override
public Metadata getMetadata() {
  return session.getMetadata();
}

/**
 * Returns the {@code Cluster} object this session is part of.
 *
 * @return the {@code Cluster} object this session is part of.
 */
@Override
public Cluster getCluster() {
  return session.getCluster();
}

/**
 * Executes a cassandra statement asynchronously.  Ensures the callback is executed on the correct vert.x context.
 *
 * @param statement the statement to execute
 * @return the promise for the {@link com.datastax.driver.core.ResultSet}
 */
@Override
public Promise<ResultSet> executeAsync(Statement statement) {
  return convertFuture(session.executeAsync(statement));
}

/**
 * Prepares the provided query statement
 *
 * @param statement the query statement to prepare
 * @return the promise for the {@link com.datastax.driver.core.PreparedStatement}
 */
@Override
public Promise<PreparedStatement> prepareAsync(RegularStatement statement) {
  return convertFuture(session.prepareAsync(statement));
}

/**
 * Whether this Session instance has been closed.
 *
 * @return {@code true} if this Session instance has been closed, {@code false}
 * otherwise.
 */
@Override
public boolean isClosed() {
  return session.isClosed();
}

private <V> void addCallback(final ListenableFuture<V> future, FutureCallback<V> callback) {
  FutureUtils.addCallback(future, callback, vertx);
}

/**
 * Executes a cassandra CQL query asynchronously.  Ensures the callback is executed on the correct vert.x context.
 *
 * @param query the CQL query to execute
 * @return the promise for the {@link com.datastax.driver.core.ResultSet}
 */
@Override
public Promise<ResultSet> executeAsync(String query) {
  return convertFuture(session.executeAsync(query));
}

/**
 * {@inheritDoc}
 */
@Override
public void close() throws Exception {
  session.close();
}

/**
 * Returns cassandra metadata
 *
 * @return returns the cassandra metadata for the current session
 */
@Override
public Metadata getMetadata() {
  return session.getMetadata();
}

/**
 * Returns the {@code Cluster} object this session is part of.
 *
 * @return the {@code Cluster} object this session is part of.
 */
@Override
public Cluster getCluster() {
  return session.getCluster();
}

/**
 * Prepares the provided query statement
 *
 * @param statement the query statement to prepare
 * @return the promise for the {@link com.datastax.driver.core.PreparedStatement}
 */
@Override
public Promise<PreparedStatement> prepareAsync(RegularStatement statement) {
  return convertFuture(session.prepareAsync(statement));
}

/**
 * Whether this Session instance has been closed.
 *
 * @return {@code true} if this Session instance has been closed, {@code false}
 * otherwise.
 */
@Override
public boolean isClosed() {
  return session.isClosed();
}

private <V> void addCallback(final ListenableFuture<V> future, FutureCallback<V> callback) {
  FutureUtils.addCallback(future, callback, vertx);
}

/**
 * This is a convenience method for {@code executeAsync(new SimpleStatement(query, values))}.
 *
 * @param query
 * @param values
 * @return
 */
@Override
public Promise<ResultSet> executeAsync(String query, Object... values) {
  return convertFuture(session.executeAsync(query, values));
}

/**
 * {@inheritDoc}
 */
@Override
public void close() throws Exception {
  session.close();
}

/**
 * Returns cassandra metadata
 *
 * @return returns the cassandra metadata for the current session
 */
@Override
public Metadata getMetadata() {
  return session.getMetadata();
}

/**
 * Returns the {@code Cluster} object this session is part of.
 *
 * @return the {@code Cluster} object this session is part of.
 */
@Override
public Cluster getCluster() {
  return session.getCluster();
}

/**
 * Whether this Session instance has been closed.
 *
 * @return {@code true} if this Session instance has been closed, {@code false}
 * otherwise.
 */
@Override
public boolean isClosed() {
  return session.isClosed();
}

@Override
public void deleteAsync(FutureCallback<Void> callback, Object... primaryKey) {
  ListenableFuture<Void> future = mapper.deleteAsync(primaryKey);
  FutureUtils.addCallback(future, callback, vertx);
}