PgPool (Vert.x Stack - Docs 4.3.8 API)

All Superinterfaces:

Pool, SqlClient
```
public interface PgPool
extends Pool
```
A pool of PostgreSQL connections.

Author:

Julien Viet

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method and Description
`static SqlClient`	`client()` Like `client(PoolOptions)` with default options.
`static SqlClient`	`client(List<PgConnectOptions> databases, PoolOptions options)` Create a client backed by a connection pool to the PostgreSQL `databases` with round-robin selection.
`static SqlClient`	`client(PgConnectOptions database, PoolOptions options)` Create a client backed by a connection pool to the PostgreSQL `database` configured with the given `options`.
`static SqlClient`	`client(PoolOptions options)` Like `client(PgConnectOptions, PoolOptions)` with `database` retrieved from the environment variables.
`static SqlClient`	`client(String connectionUri)` Like `pool(String, PoolOptions)` with default options.
`static SqlClient`	`client(String connectionUri, PoolOptions options)` Like `client(PgConnectOptions, PoolOptions)` with `database` retrieved from the `connectionUri`.
`static SqlClient`	`client(Vertx vertx, List<PgConnectOptions> databases, PoolOptions options)` Like `client(List, PoolOptions)` with a specific `Vertx` instance.
`static SqlClient`	`client(Vertx vertx, PgConnectOptions database, PoolOptions options)` Like `client(PgConnectOptions, PoolOptions)` with a specific `Vertx` instance.
`static SqlClient`	`client(Vertx vertx, PoolOptions poolOptions)` Like `client(Vertx, PgConnectOptions, PoolOptions)` with `database` retrieved from the environment variables.
`static SqlClient`	`client(Vertx vertx, String connectionUri)` Like `client(Vertx, String,PoolOptions)` with default options.
`static SqlClient`	`client(Vertx vertx, String connectionUri, PoolOptions options)` Like `client(Vertx, PgConnectOptions, PoolOptions)` with `database` build from `connectionUri`.
`PgPool`	`connectHandler(Handler<SqlConnection> handler)` Set an handler called when the pool has established a connection to the database.
`PgPool`	`connectionProvider(java.util.function.Function<Context,Future<SqlConnection>> provider)` Replace the default pool connection provider, the new `provider` returns a future connection for a given `Context`.
`static PgPool`	`pool()` Like `pool(PoolOptions)` with a default `poolOptions`.
`static PgPool`	`pool(List<PgConnectOptions> databases, PoolOptions poolOptions)` Create a connection pool to the PostgreSQL `databases` with round-robin selection.
`static PgPool`	`pool(PgConnectOptions database, PoolOptions options)` Create a connection pool to the PostgreSQL `database` configured with the given `options`.
`static PgPool`	`pool(PoolOptions options)` Like `pool(PgConnectOptions, PoolOptions)` with `connectOptions` build from the environment variables.
`static PgPool`	`pool(String connectionUri)` Like `pool(String, PoolOptions)` with a default `poolOptions`.
`static PgPool`	`pool(String connectionUri, PoolOptions options)` Like `pool(PgConnectOptions, PoolOptions)` with `connectOptions` build from `connectionUri`.
`static PgPool`	`pool(Vertx vertx, List<PgConnectOptions> databases, PoolOptions poolOptions)` Like `pool(List, PoolOptions)` with a specific `Vertx` instance.
`static PgPool`	`pool(Vertx vertx, PgConnectOptions database, PoolOptions options)` Like `pool(PgConnectOptions, PoolOptions)` with a specific `Vertx` instance.
`static PgPool`	`pool(Vertx vertx, PoolOptions options)` Like `pool(Vertx, PgConnectOptions, PoolOptions)` with the `database` retrieved from the environment variables.
`static PgPool`	`pool(Vertx vertx, String connectionUri)` Like `pool(Vertx, String,PoolOptions)` with default options.
`static PgPool`	`pool(Vertx vertx, String connectionUri, PoolOptions poolOptions)` Like `pool(Vertx, PgConnectOptions, PoolOptions)` with `database` retrieved from the given `connectionUri`.

Methods inherited from interface io.vertx.sqlclient.Pool
close, getConnection, getConnection, pool, pool, pool, preparedQuery, query, size, withConnection, withConnection, withTransaction, withTransaction

Methods inherited from interface io.vertx.sqlclient.SqlClient
close, preparedQuery

- Method Detail
  - pool
```
static PgPool pool()
```
    Like pool(PoolOptions) with a default poolOptions.
  - pool
```
static PgPool pool(PoolOptions options)
```
    Like pool(PgConnectOptions, PoolOptions) with connectOptions build from the environment variables.
  - pool
```
static PgPool pool(String connectionUri)
```
    Like pool(String, PoolOptions) with a default poolOptions.
  - pool
```
static PgPool pool(String connectionUri,
                   PoolOptions options)
```
    Like pool(PgConnectOptions, PoolOptions) with connectOptions build from connectionUri.
  - pool
```
static PgPool pool(Vertx vertx,
                   String connectionUri)
```
    Like pool(Vertx, String,PoolOptions) with default options.
  - pool
```
static PgPool pool(Vertx vertx,
                   PoolOptions options)
```
    Like pool(Vertx, PgConnectOptions, PoolOptions) with the database retrieved from the environment variables.
  - pool
```
static PgPool pool(Vertx vertx,
                   String connectionUri,
                   PoolOptions poolOptions)
```
    Like pool(Vertx, PgConnectOptions, PoolOptions) with database retrieved from the given connectionUri.
  - pool
```
static PgPool pool(PgConnectOptions database,
                   PoolOptions options)
```
    Create a connection pool to the PostgreSQL database configured with the given options.
    
    Parameters:
    
    database - the database
    
    options - the options for creating the pool
    
    Returns:
    
    the connection pool
  - pool
```
static PgPool pool(Vertx vertx,
                   PgConnectOptions database,
                   PoolOptions options)
```
    Like pool(PgConnectOptions, PoolOptions) with a specific Vertx instance.
  - pool
```
static PgPool pool(List<PgConnectOptions> databases,
                   PoolOptions poolOptions)
```
    Create a connection pool to the PostgreSQL databases with round-robin selection. Round-robin is applied when a new connection is created by the pool.
    
    Parameters:
    
    databases - the list of databases
    
    poolOptions - the options for creating the pool
    
    Returns:
    
    the connection pool
  - pool
```
static PgPool pool(Vertx vertx,
                   List<PgConnectOptions> databases,
                   PoolOptions poolOptions)
```
    Like pool(List, PoolOptions) with a specific Vertx instance.
  - client
```
static SqlClient client()
```
    Like client(PoolOptions) with default options.
  - client
```
static SqlClient client(PoolOptions options)
```
    Like client(PgConnectOptions, PoolOptions) with database retrieved from the environment variables.
  - client
```
static SqlClient client(String connectionUri)
```
    Like pool(String, PoolOptions) with default options.
  - client
```
static SqlClient client(String connectionUri,
                        PoolOptions options)
```
    Like client(PgConnectOptions, PoolOptions) with database retrieved from the connectionUri.
  - client
```
static SqlClient client(Vertx vertx,
                        String connectionUri)
```
    Like client(Vertx, String,PoolOptions) with default options.
  - client
```
static SqlClient client(Vertx vertx,
                        PoolOptions poolOptions)
```
    Like client(Vertx, PgConnectOptions, PoolOptions) with database retrieved from the environment variables.
  - client
```
static SqlClient client(Vertx vertx,
                        String connectionUri,
                        PoolOptions options)
```
    Like client(Vertx, PgConnectOptions, PoolOptions) with database build from connectionUri.
  - client
```
static SqlClient client(PgConnectOptions database,
                        PoolOptions options)
```
    Create a client backed by a connection pool to the PostgreSQL database configured with the given options.
    
    Parameters:
    
    options - the options for creating the backing pool
    
    Returns:
    
    the pooled client
  - client
```
static SqlClient client(Vertx vertx,
                        PgConnectOptions database,
                        PoolOptions options)
```
    Like client(PgConnectOptions, PoolOptions) with a specific Vertx instance.
  - client
```
static SqlClient client(Vertx vertx,
                        List<PgConnectOptions> databases,
                        PoolOptions options)
```
    Like client(List, PoolOptions) with a specific Vertx instance.
  - client
```
static SqlClient client(List<PgConnectOptions> databases,
                        PoolOptions options)
```
    Create a client backed by a connection pool to the PostgreSQL databases with round-robin selection. Round-robin is applied when a new connection is created by the pool.
    
    Parameters:
    
    databases - the list of databases
    
    options - the options for creating the pool
    
    Returns:
    
    the pooled client
  - connectHandler
```
PgPool connectHandler(Handler<SqlConnection> handler)
```
    Description copied from interface: Pool
    
    Set an handler called when the pool has established a connection to the database.
    This handler allows interactions with the database before the connection is added to the pool.
    When the handler has finished, it must call SqlClient.close() to release the connection to the pool.
    
    Specified by:
    
    connectHandler in interface Pool
    
    Parameters:
    
    handler - the handler
    
    Returns:
    
    a reference to this, so the API can be used fluently
  - connectionProvider
```
PgPool connectionProvider(java.util.function.Function<Context,Future<SqlConnection>> provider)
```
    Description copied from interface: Pool
    
    Replace the default pool connection provider, the new provider returns a future connection for a given Context.
    A ConnectionFactory can be used as connection provider.
    
    Specified by:
    
    connectionProvider in interface Pool
    
    Parameters:
    
    provider - the new connection provider
    
    Returns:
    
    a reference to this, so the API can be used fluently

Interface PgPool

Method Summary

Methods inherited from interface io.vertx.sqlclient.Pool

Methods inherited from interface io.vertx.sqlclient.SqlClient

Method Detail

pool

pool

pool

pool

pool

pool

pool

pool

pool

pool

pool

client

client

client

client

client

client

client

client

client

client

client

connectHandler

connectionProvider