Package io.vertx.cassandra

## Interface CassandraRowStream

- All Superinterfaces:
    `ReadStream<com.datastax.oss.driver.api.core.cql.Row>`, `StreamBase`

      public interface CassandraRowStream
      extends ReadStream<com.datastax.oss.driver.api.core.cql.Row>

  A `ReadStream` for `Row` consumption.
  Author:
    Pavel Drankou, Thomas Segismont

- - ### Method Summary

    All Methods Instance Methods Abstract Methods Default Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `com.datastax.oss.driver.api.core.cql.ColumnDefinitions` | `columnDefinitions()` | Get the `ColumnDefinitions` provided by the backing `ResultSet` for this stream.
    `CassandraRowStream` | `endHandler​(Handler<Void> handler)` | Set an end handler.
    `CassandraRowStream` | `exceptionHandler​(Handler<Throwable> handler)` | Set an exception handler on the read stream.
    `com.datastax.oss.driver.api.core.cql.ExecutionInfo` | `executionInfo()` | Get the `ExecutionInfo` provided by the backing `ResultSet` for this stream.
    `CassandraRowStream` | `fetch​(long l)` | Fetch the specified `amount` of elements.
    `CassandraRowStream` | `handler​(Handler<com.datastax.oss.driver.api.core.cql.Row> handler)` | Set a data handler.
    `CassandraRowStream` | `pause()` | Pause the `ReadStream`, it sets the buffer in `fetch` mode and clears the actual demand.
    `default Future<Void>` | `pipeTo​(WriteStream<com.datastax.oss.driver.api.core.cql.Row> dst)` | Pipe this `ReadStream` to the `WriteStream`.
    `CassandraRowStream` | `resume()` | Resume reading, and sets the buffer in `flowing` mode.

    - ### Methods inherited from interface io.vertx.core.streams.ReadStream

      `collect, pipe`

- - ### Method Detail

    - #### exceptionHandler

          CassandraRowStream exceptionHandler​(Handler<Throwable> handler)

      Description copied from interface: `ReadStream`
      Set an exception handler on the read stream.
      Specified by:
        `exceptionHandler` in interface `ReadStream<com.datastax.oss.driver.api.core.cql.Row>`
      Specified by:
        `exceptionHandler` in interface `StreamBase`
      Parameters:
        `handler` - the exception handler
      Returns:
        a reference to this, so the API can be used fluently

    - #### handler

          CassandraRowStream handler​(Handler<com.datastax.oss.driver.api.core.cql.Row> handler)

      Description copied from interface: `ReadStream`
      Set a data handler. As data is read, the handler will be called with the data.
      Specified by:
        `handler` in interface `ReadStream<com.datastax.oss.driver.api.core.cql.Row>`
      Returns:
        a reference to this, so the API can be used fluently

    - #### pause

          CassandraRowStream pause()

      Description copied from interface: `ReadStream`
      Pause the `ReadStream`, it sets the buffer in `fetch` mode and clears the actual demand.

      While it's paused, no data will be sent to the data `handler`.

      Specified by:
        `pause` in interface `ReadStream<com.datastax.oss.driver.api.core.cql.Row>`
      Returns:
        a reference to this, so the API can be used fluently

    - #### resume

          CassandraRowStream resume()

      Description copied from interface: `ReadStream`
      Resume reading, and sets the buffer in `flowing` mode.

      If the `ReadStream` has been paused, reading will recommence on it.
      Specified by:
        `resume` in interface `ReadStream<com.datastax.oss.driver.api.core.cql.Row>`
      Returns:
        a reference to this, so the API can be used fluently

    - #### endHandler

          CassandraRowStream endHandler​(Handler<Void> handler)

      Description copied from interface: `ReadStream`
      Set an end handler. Once the stream has ended, and there is no more data to be read, this handler will be called.
      Specified by:
        `endHandler` in interface `ReadStream<com.datastax.oss.driver.api.core.cql.Row>`
      Returns:
        a reference to this, so the API can be used fluently

    - #### fetch

          CassandraRowStream fetch​(long l)

      Description copied from interface: `ReadStream`
      Fetch the specified `amount` of elements. If the `ReadStream` has been paused, reading will recommence with the specified `amount` of items, otherwise the specified `amount` will be added to the current stream demand.
      Specified by:
        `fetch` in interface `ReadStream<com.datastax.oss.driver.api.core.cql.Row>`
      Returns:
        a reference to this, so the API can be used fluently

    - #### pipeTo

          default Future<Void> pipeTo​(WriteStream<com.datastax.oss.driver.api.core.cql.Row> dst)

      Description copied from interface: `ReadStream`
      Pipe this `ReadStream` to the `WriteStream`.

      Elements emitted by this stream will be written to the write stream until this stream ends or fails.

      Specified by:
        `pipeTo` in interface `ReadStream<com.datastax.oss.driver.api.core.cql.Row>`
      Parameters:
        `dst` - the destination write stream
      Returns:
        a future notified when the write stream will be ended with the outcome

    - #### executionInfo

          com.datastax.oss.driver.api.core.cql.ExecutionInfo executionInfo()

      Get the `ExecutionInfo` provided by the backing `ResultSet` for this stream.

    - #### columnDefinitions

          com.datastax.oss.driver.api.core.cql.ColumnDefinitions columnDefinitions()

      Get the `ColumnDefinitions` provided by the backing `ResultSet` for this stream.