SQLRowStream (Vert.x Stack - Docs 4.3.8 API)

java.lang.Object
- io.vertx.rxjava.ext.sql.SQLRowStream

All Implemented Interfaces:

ReadStream<JsonArray>, StreamBase
```
public class SQLRowStream
extends Object
implements ReadStream<JsonArray>
```
A ReadStream of Rows from the underlying RDBMS. This class follows the ReadStream semantics and will automatically close the underlying resources if all returned rows are returned. For cases where the results are ignored before the full processing of the returned rows is complete the close method **MUST** be called in order to release underlying resources. The interface is minimal in order to support all SQL clients not just JDBC.
NOTE: This class has been automatically generated from the original non RX-ified interface using Vert.x codegen.

Field Summary

Fields
Modifier and Type Field and Description

static io.vertx.lang.rx.TypeArg<SQLRowStream> __TYPE_ARG

Fields
Modifier and Type	Field and Description
`static io.vertx.lang.rx.TypeArg<SQLRowStream>`	`__TYPE_ARG`

Constructor Summary

Constructors
Constructor and Description

SQLRowStream(Object delegate)

SQLRowStream(SQLRowStream delegate)

Constructors
Constructor and Description
`SQLRowStream(Object delegate)`
`SQLRowStream(SQLRowStream delegate)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`close()` Closes the stream/underlying cursor(s).
`void`	`close(Handler<AsyncResult<Void>> handler)` Closes the stream/underlying cursor(s).
`int`	`column(String name)` Will convert the column name to the json array index.
`List<String>`	`columns()` Returns all column names available in the underlying resultset.
`SQLRowStream`	`endHandler(Handler<Void> endHandler)` Set an end handler.
`boolean`	`equals(Object o)`
`SQLRowStream`	`exceptionHandler(Handler<Throwable> handler)` Set an exception handler on the read stream.
`ReadStream<JsonArray>`	`fetch(long amount)` Fetch the specified `amount` of elements.
`SQLRowStream`	`getDelegate()`
`SQLRowStream`	`handler(Handler<JsonArray> handler)` Set a data handler.
`int`	`hashCode()`
`void`	`moreResults()` Request for more results if available
`static SQLRowStream`	`newInstance(SQLRowStream arg)`
`SQLRowStream`	`pause()` Pause the `ReadStream`, it sets the buffer in `fetch` mode and clears the actual demand.
`Pipe<JsonArray>`	`pipe()` Pause this stream and return a to transfer the elements of this stream to a destination .
`void`	`pipeTo(WriteStream<JsonArray> dst)` Pipe this `ReadStream` to the `WriteStream`.
`void`	`pipeTo(WriteStream<JsonArray> dst, Handler<AsyncResult<Void>> handler)` Pipe this `ReadStream` to the `WriteStream`.
`SQLRowStream`	`resultSetClosedHandler(Handler<Void> handler)` Event handler when a resultset is closed.
`SQLRowStream`	`resume()` Resume reading, and sets the buffer in `flowing` mode.
`Single<Void>`	`rxClose()` Closes the stream/underlying cursor(s).
`Single<Void>`	`rxPipeTo(WriteStream<JsonArray> dst)` Pipe this `ReadStream` to the `WriteStream`.
`Observable<JsonArray>`	`toObservable()`
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface io.vertx.rxjava.core.streams.ReadStream
newInstance, newInstance

Methods inherited from interface io.vertx.rxjava.core.streams.StreamBase
newInstance

- Field Detail
  - __TYPE_ARG
```
public static final io.vertx.lang.rx.TypeArg<SQLRowStream> __TYPE_ARG
```
- Constructor Detail
  - SQLRowStream
```
public SQLRowStream(SQLRowStream delegate)
```
  - SQLRowStream
```
public SQLRowStream(Object delegate)
```
- Method Detail
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - equals
```
public boolean equals(Object o)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - getDelegate
```
public SQLRowStream getDelegate()
```
    Specified by:
    
    getDelegate in interface ReadStream<JsonArray>
    
    Specified by:
    
    getDelegate in interface StreamBase
  - toObservable
```
public Observable<JsonArray> toObservable()
```
    Specified by:
    
    toObservable in interface ReadStream<JsonArray>
  - fetch
```
public ReadStream<JsonArray> fetch(long amount)
```
    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<JsonArray>
    
    Parameters:
    
    amount -
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - pipe
```
public Pipe<JsonArray> pipe()
```
    Pause this stream and return a to transfer the elements of this stream to a destination .
    The stream will be resumed when the pipe will be wired to a WriteStream.
    
    Specified by:
    
    pipe in interface ReadStream<JsonArray>
    
    Returns:
    
    a pipe
  - pipeTo
```
public void pipeTo(WriteStream<JsonArray> dst,
                   Handler<AsyncResult<Void>> handler)
```
    Pipe this ReadStream to the WriteStream.
    Elements emitted by this stream will be written to the write stream until this stream ends or fails.
    Once this stream has ended or failed, the write stream will be ended and the handler will be called with the result.
    
    Specified by:
    
    pipeTo in interface ReadStream<JsonArray>
    
    Parameters:
    
    dst - the destination write stream
    
    handler -
  - pipeTo
```
public void pipeTo(WriteStream<JsonArray> dst)
```
    Pipe this ReadStream to the WriteStream.
    Elements emitted by this stream will be written to the write stream until this stream ends or fails.
    Once this stream has ended or failed, the write stream will be ended and the handler will be called with the result.
    
    Specified by:
    
    pipeTo in interface ReadStream<JsonArray>
    
    Parameters:
    
    dst - the destination write stream
  - rxPipeTo
```
public Single<Void> rxPipeTo(WriteStream<JsonArray> dst)
```
    Pipe this ReadStream to the WriteStream.
    Elements emitted by this stream will be written to the write stream until this stream ends or fails.
    Once this stream has ended or failed, the write stream will be ended and the handler will be called with the result.
    
    Specified by:
    
    rxPipeTo in interface ReadStream<JsonArray>
    
    Parameters:
    
    dst - the destination write stream
    
    Returns:
  - exceptionHandler
```
public SQLRowStream exceptionHandler(Handler<Throwable> handler)
```
    Description copied from interface: ReadStream
    
    Set an exception handler on the read stream.
    
    Specified by:
    
    exceptionHandler in interface ReadStream<JsonArray>
    
    Specified by:
    
    exceptionHandler in interface StreamBase
    
    Parameters:
    
    handler - the exception handler
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - handler
```
public SQLRowStream handler(Handler<JsonArray> 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<JsonArray>
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - pause
```
public SQLRowStream 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<JsonArray>
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - resume
```
public SQLRowStream 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<JsonArray>
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - endHandler
```
public SQLRowStream endHandler(Handler<Void> endHandler)
```
    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<JsonArray>
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - column
```
public int column(String name)
```
    Will convert the column name to the json array index.
    
    Parameters:
    
    name - the column name
    
    Returns:
    
    the json array index
  - columns
```
public List<String> columns()
```
    Returns all column names available in the underlying resultset. One needs to carefully use this method since in contrast to the singular version it does not perform case insensitive lookups or takes alias in consideration on the column names.
    
    Returns:
    
    the list of columns names returned by the query
  - resultSetClosedHandler
```
public SQLRowStream resultSetClosedHandler(Handler<Void> handler)
```
    Event handler when a resultset is closed. This is useful to request for more results.
    
    Parameters:
    
    handler - called when the current result set is closed
    
    Returns:
  - moreResults
```
public void moreResults()
```
    Request for more results if available
  - close
```
public void close()
```
    Closes the stream/underlying cursor(s). The actual close happens asynchronously.
  - close
```
public void close(Handler<AsyncResult<Void>> handler)
```
    Closes the stream/underlying cursor(s). The actual close happens asynchronously.
    
    Parameters:
    
    handler - called when the stream/underlying cursor(s) is(are) closed
  - rxClose
```
public Single<Void> rxClose()
```
    Closes the stream/underlying cursor(s). The actual close happens asynchronously.
    
    Returns:
  - newInstance
```
public static SQLRowStream newInstance(SQLRowStream arg)
```

Class SQLRowStream

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface io.vertx.rxjava.core.streams.ReadStream

Methods inherited from interface io.vertx.rxjava.core.streams.StreamBase

Field Detail

__TYPE_ARG

Constructor Detail

SQLRowStream

SQLRowStream

Method Detail

toString

equals

hashCode

getDelegate

toObservable

fetch

pipe

pipeTo

pipeTo

rxPipeTo

exceptionHandler

handler

pause

resume

endHandler

column

columns

resultSetClosedHandler

moreResults

close

close

rxClose

newInstance