Class DriverManagerConnectionProviderImpl
- java.lang.Object
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- org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl
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- All Implemented Interfaces:
Serializable
,ConnectionValidator
,ConnectionProvider
,Service
,Configurable
,ServiceRegistryAwareService
,Stoppable
,Wrapped
- Direct Known Subclasses:
SharedDriverManagerConnectionProviderImpl
public class DriverManagerConnectionProviderImpl extends Object implements ConnectionProvider, Configurable, Stoppable, ServiceRegistryAwareService, ConnectionValidator
A connection provider that uses theDriverManager
directly to open connections and provides a very rudimentary connection pool.- See Also:
- Serialized Form
- Implementation Note:
- Not intended for use in production systems!
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
DriverManagerConnectionProviderImpl.PooledConnections
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Field Summary
Fields Modifier and Type Field Description static String
CONNECTION_CREATOR_FACTORY
static String
INIT_SQL
static String
INITIAL_SIZE
static String
MIN_SIZE
static String
VALIDATION_INTERVAL
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Fields inherited from interface org.hibernate.engine.jdbc.connections.internal.ConnectionValidator
ALWAYS_VALID
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Constructor Summary
Constructors Constructor Description DriverManagerConnectionProviderImpl()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
closeConnection(Connection connection)
Release a connection from Hibernate use.void
configure(Map<String,Object> configurationValues)
Configure the service.protected void
finalize()
Connection
getConnection()
Obtains a connection for Hibernate use according to the underlying strategy of this provider.Properties
getConnectionProperties()
Exposed to facilitate testing only.DatabaseConnectionInfo
getDatabaseConnectionInfo(Dialect dialect)
protected int
getOpenConnections()
void
injectServices(ServiceRegistryImplementor serviceRegistry)
Callback to inject the registry.boolean
isUnwrappableAs(Class<?> unwrapType)
Can this wrapped service be unwrapped as the indicated type?boolean
isValid(Connection connection)
Checks if the given connection is still valid.void
releasePooledConnections()
void
stop()
Stop phase notificationboolean
supportsAggressiveRelease()
Does this connection provider support aggressive release of JDBC connections and later re-acquisition of those connections if needed?<T> T
unwrap(Class<T> unwrapType)
Unproxy the service proxyprotected void
validateConnections(ConnectionValidator validator)
protected void
validateConnectionsReturned()
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Field Detail
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MIN_SIZE
public static final String MIN_SIZE
- See Also:
- Constant Field Values
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INITIAL_SIZE
public static final String INITIAL_SIZE
- See Also:
- Constant Field Values
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VALIDATION_INTERVAL
public static final String VALIDATION_INTERVAL
- See Also:
- Constant Field Values
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INIT_SQL
public static final String INIT_SQL
- See Also:
- Constant Field Values
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CONNECTION_CREATOR_FACTORY
public static final String CONNECTION_CREATOR_FACTORY
- See Also:
- Constant Field Values
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Method Detail
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injectServices
public void injectServices(ServiceRegistryImplementor serviceRegistry)
Description copied from interface:ServiceRegistryAwareService
Callback to inject the registry.- Specified by:
injectServices
in interfaceServiceRegistryAwareService
- Parameters:
serviceRegistry
- The registry
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configure
public void configure(Map<String,Object> configurationValues)
Description copied from interface:Configurable
Configure the service.- Specified by:
configure
in interfaceConfigurable
- Parameters:
configurationValues
- The configuration properties.
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getConnection
public Connection getConnection() throws SQLException
Description copied from interface:ConnectionProvider
Obtains a connection for Hibernate use according to the underlying strategy of this provider.- Specified by:
getConnection
in interfaceConnectionProvider
- Returns:
- The obtained JDBC connection
- Throws:
SQLException
- Indicates a problem opening a connection
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closeConnection
public void closeConnection(Connection connection) throws SQLException
Description copied from interface:ConnectionProvider
Release a connection from Hibernate use.- Specified by:
closeConnection
in interfaceConnectionProvider
- Parameters:
connection
- The JDBC connection to release- Throws:
SQLException
- Indicates a problem closing the connection
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supportsAggressiveRelease
public boolean supportsAggressiveRelease()
Description copied from interface:ConnectionProvider
Does this connection provider support aggressive release of JDBC connections and later re-acquisition of those connections if needed?This is used in conjunction with
ConnectionReleaseMode.AFTER_STATEMENT
to aggressively release JDBC connections. However, the configuredConnectionProvider
must support re-acquisition of the same underlying connection for that semantic to work.Typically, this is only true in managed environments where a container tracks connections by transaction or thread.
Note that JTA semantic depends on the fact that the underlying connection provider does support aggressive release.
- Specified by:
supportsAggressiveRelease
in interfaceConnectionProvider
- Returns:
true
if aggressive releasing is supported;false
otherwise.
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getDatabaseConnectionInfo
public DatabaseConnectionInfo getDatabaseConnectionInfo(Dialect dialect)
- Specified by:
getDatabaseConnectionInfo
in interfaceConnectionProvider
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isUnwrappableAs
public boolean isUnwrappableAs(Class<?> unwrapType)
Description copied from interface:Wrapped
Can this wrapped service be unwrapped as the indicated type?- Specified by:
isUnwrappableAs
in interfaceWrapped
- Parameters:
unwrapType
- The type to check.- Returns:
- True/false.
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unwrap
public <T> T unwrap(Class<T> unwrapType)
Description copied from interface:Wrapped
Unproxy the service proxy
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getOpenConnections
protected int getOpenConnections()
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validateConnectionsReturned
protected void validateConnectionsReturned()
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validateConnections
protected void validateConnections(ConnectionValidator validator)
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stop
public void stop()
Description copied from interface:Stoppable
Stop phase notification
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finalize
protected void finalize() throws Throwable
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getConnectionProperties
public Properties getConnectionProperties()
Exposed to facilitate testing only.
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isValid
public boolean isValid(Connection connection) throws SQLException
Description copied from interface:ConnectionValidator
Checks if the given connection is still valid.- Specified by:
isValid
in interfaceConnectionValidator
- Returns:
true
if the connection is valid,false
otherwise- Throws:
SQLException
- when an error happens due to the connection usage leading to a connection close
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releasePooledConnections
@Internal public void releasePooledConnections()
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