public Class LoadBalancedMySQLConnection

Implements com.mysql.cj.jdbc.ha.LoadBalancedConnection.addHost.

Annotations

@Override

Overrides com.mysql.cj.jdbc.ha.MultiHostMySQLConnection.close.

Implements java.sql.Connection.close.

Doc from java.sql.Connection.close.

Releases this Connection object's database and JDBC resources immediately instead of waiting for them to be automatically released.

Calling the method close on a Connection object that is already closed is a no-op.

It is strongly recommended that an application explicitly commits or rolls back an active transaction prior to calling the close method. If the close method is called and there is an active transaction, the results are implementation-defined.

Annotations

@Override

Exceptions

SQLException:

if a database access error occurs

Overrides com.mysql.cj.jdbc.ha.MultiHostMySQLConnection.getThisAsProxy.

Annotations

@Override

Overrides com.mysql.cj.jdbc.ha.MultiHostMySQLConnection.isWrapperFor.

Implements java.sql.Wrapper.isWrapperFor.

Doc from java.sql.Wrapper.isWrapperFor.

Returns true if this either implements the interface argument or is directly or indirectly a wrapper for an object that does. Returns false otherwise. If this implements the interface then return true, else if this is a wrapper then return the result of recursively calling isWrapperFor on the wrapped object. If this does not implement the interface and is not a wrapper, return false. This method should be implemented as a low-cost operation compared to unwrap so that callers can use this method to avoid expensive unwrap calls that may fail. If this method returns true then calling unwrap with the same argument should succeed.

Parameters

iface:Class<?>

a Class defining an interface.

Returns:boolean

true if this implements the interface or directly or indirectly wraps an object that does.

Annotations

@Override

Exceptions

SQLException:

if an error occurs while determining whether this is a wrapper for an object with the given interface.

Overrides com.mysql.cj.jdbc.ha.MultiHostMySQLConnection.ping.

Implements com.mysql.cj.jdbc.JdbcConnection.ping.

Doc from com.mysql.cj.jdbc.JdbcConnection.ping.

Detect if the connection is still good by sending a ping command to the server.

Annotations

@Override

Exceptions

SQLException:

if the ping fails

Implements com.mysql.cj.jdbc.ha.LoadBalancedConnection.ping.

Annotations

@Override

Implements com.mysql.cj.jdbc.ha.LoadBalancedConnection.removeHost.

Annotations

@Override

Implements com.mysql.cj.jdbc.ha.LoadBalancedConnection.removeHostWhenNotInUse.

Annotations

@Override

Overrides com.mysql.cj.jdbc.ha.MultiHostMySQLConnection.unwrap.

Implements java.sql.Wrapper.unwrap.

Doc from java.sql.Wrapper.unwrap.

Returns an object that implements the given interface to allow access to non-standard methods, or standard methods not exposed by the proxy. If the receiver implements the interface then the result is the receiver or a proxy for the receiver. If the receiver is a wrapper and the wrapped object implements the interface then the result is the wrapped object or a proxy for the wrapped object. Otherwise return the the result of calling unwrap recursively on the wrapped object or a proxy for that result. If the receiver is not a wrapper and does not implement the interface, then an SQLException is thrown.

Parameters

<T>

the type of the class modeled by this Class object

iface:Class<T>

A Class defining an interface that the result must implement.

Returns:T

an object that implements the interface. May be a proxy for the actual implementing object.

Annotations

@Override

Exceptions

SQLException:

If no object found that implements the interface