io.vertx.reactivex.sqlclient

Class PreparedStatement

java.lang.Object

io.vertx.reactivex.sqlclient.PreparedStatement

public class PreparedStatement
extends Object

A prepared statement, the statement is pre-compiled and it's more efficient to execute the statement for multiple times. In addition, this kind of statement provides protection against SQL injection attacks.

From a prepared statement you can

• use query() to create and execute a PreparedQuery
• use cursor() to create a Cursor
• use createStream(int) to create a RowStream

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<PreparedStatement>	__TYPE_ARG

Constructor Summary

Constructors

Constructor and Description
PreparedStatement(Object delegate)
PreparedStatement(PreparedStatement delegate)

Method Summary

Modifier and Type	Method and Description
void	close() Like close(io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>>) but notifies the completionHandler when it's closed.
void	close(Handler<AsyncResult<Void>> completionHandler) Like close(io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>>) but notifies the completionHandler when it's closed.
RowStream<Row>	createStream(int fetch) Like createStream(int) but with empty arguments.
RowStream<Row>	createStream(int fetch, Tuple args) Execute the prepared query with a cursor and createStream the result.
Cursor	cursor() Like cursor() but with empty arguments.
Cursor	cursor(Tuple args) Create a cursor with the provided arguments.
boolean	equals(Object o)
PreparedStatement	getDelegate()
int	hashCode()
static PreparedStatement	newInstance(PreparedStatement arg)
PreparedQuery<RowSet<Row>>	query() Create a prepared query for this statement.
Completable	rxClose() Like close(io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>>) but notifies the completionHandler when it's closed.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

__TYPE_ARG

public static final io.vertx.lang.rx.TypeArg<PreparedStatement> __TYPE_ARG

Constructor Detail

PreparedStatement

public PreparedStatement(PreparedStatement delegate)

PreparedStatement

public PreparedStatement(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 PreparedStatement getDelegate()

query

public PreparedQuery<RowSet<Row>> query()

Create a prepared query for this statement.

Returns:

the prepared query

cursor

public Cursor cursor()

Like cursor() but with empty arguments.

Returns:

cursor

public Cursor cursor(Tuple args)

Create a cursor with the provided arguments.

Parameters:

args - the list of arguments

Returns:

the query

createStream

public RowStream<Row> createStream(int fetch)

Like createStream(int) but with empty arguments.

Parameters:

fetch -

Returns:

createStream

public RowStream<Row> createStream(int fetch,
                                   Tuple args)

Execute the prepared query with a cursor and createStream the result. The createStream opens a cursor with a fetch size to fetch the results.

Note: this requires to be in a transaction, since cursors require it.

Parameters:

fetch - the cursor fetch size

args - the prepared query arguments

Returns:

the createStream

close

public void close(Handler<AsyncResult<Void>> completionHandler)

Like close(io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>>) but notifies the completionHandler when it's closed.

Parameters:

completionHandler -

close

public void close()

Like close(io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>>) but notifies the completionHandler when it's closed.

rxClose

public Completable rxClose()

Like close(io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>>) but notifies the completionHandler when it's closed.

Returns:

newInstance

public static PreparedStatement newInstance(PreparedStatement arg)