Class ExternalConnectionPool
- java.lang.Object
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- org.eclipse.persistence.sessions.server.ConnectionPool
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- org.eclipse.persistence.sessions.server.ExternalConnectionPool
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public class ExternalConnectionPool extends ConnectionPool
Purpose: This subclass is intended to be used with external connection pools. For these pools, TopLink does not control the pooling behavior. The login should have the usesExternalConnectionPooling set to "true".
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Field Summary
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Fields inherited from class org.eclipse.persistence.sessions.server.ConnectionPool
DEAD_CHECK_TIME, INITIAL_CONNECTIONS, MAX_CONNECTIONS, MIN_CONNECTIONS, WAIT_TIMEOUT
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Constructor Summary
Constructors Constructor Description ExternalConnectionPool()
PUBLIC: Build a new external connection pool.ExternalConnectionPool(String name, Login login, ServerSession owner)
PUBLIC: Build a new external connection pool.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description org.eclipse.persistence.internal.databaseaccess.Accessor
acquireConnection()
INTERNAL: When we acquire a connection from an ExternalConnectionPool we build a new connection (retrieve it from the external pool).boolean
hasConnectionAvailable()
INTERNAL: Assume true as the driver is responsible for blocking.boolean
isThereConflictBetweenLoginAndType()
INTERNAL: Checks for a conflict between pool's type and pool's loginvoid
releaseConnection(org.eclipse.persistence.internal.databaseaccess.Accessor connection)
INTERNAL: When you release an external connection, you simply let it go.void
setCheckConnections()
INTERNAL: This method is called to indicate that all available connections should be checked.void
shutDown()
INTERNAL: This mehtod is a no-op for external pools.void
startUp()
INTERNAL: Build the default connection.-
Methods inherited from class org.eclipse.persistence.sessions.server.ConnectionPool
addFailoverConnectionPool, failover, getConnectionsAvailable, getFailoverConnectionPools, getInitialNumberOfConnections, getLogin, getMaxNumberOfConnections, getMinNumberOfConnections, getName, getTotalNumberOfConnections, getWaitTimeout, isConnected, isDead, resetConnections, setFailoverConnectionPools, setInitialNumberOfConnections, setIsConnected, setIsDead, setLogin, setMaxNumberOfConnections, setMinNumberOfConnections, setName, setWaitTimeout, toString
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Constructor Detail
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ExternalConnectionPool
public ExternalConnectionPool()
PUBLIC: Build a new external connection pool. The JDBC driver is responsible for pooling the connections.
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ExternalConnectionPool
public ExternalConnectionPool(String name, Login login, ServerSession owner)
PUBLIC: Build a new external connection pool. The JDBC driver is responsible for pooling the connections.
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Method Detail
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acquireConnection
public org.eclipse.persistence.internal.databaseaccess.Accessor acquireConnection() throws ConcurrencyException
INTERNAL: When we acquire a connection from an ExternalConnectionPool we build a new connection (retrieve it from the external pool).- Overrides:
acquireConnection
in classConnectionPool
- Throws:
ConcurrencyException
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hasConnectionAvailable
public boolean hasConnectionAvailable()
INTERNAL: Assume true as the driver is responsible for blocking.- Overrides:
hasConnectionAvailable
in classConnectionPool
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isThereConflictBetweenLoginAndType
public boolean isThereConflictBetweenLoginAndType()
INTERNAL: Checks for a conflict between pool's type and pool's login- Overrides:
isThereConflictBetweenLoginAndType
in classConnectionPool
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releaseConnection
public void releaseConnection(org.eclipse.persistence.internal.databaseaccess.Accessor connection) throws DatabaseException
INTERNAL: When you release an external connection, you simply let it go.- Overrides:
releaseConnection
in classConnectionPool
- Throws:
DatabaseException
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setCheckConnections
public void setCheckConnections()
INTERNAL: This method is called to indicate that all available connections should be checked. Noop on external connection pool.- Overrides:
setCheckConnections
in classConnectionPool
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shutDown
public void shutDown()
INTERNAL: This mehtod is a no-op for external pools.- Overrides:
shutDown
in classConnectionPool
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startUp
public void startUp()
INTERNAL: Build the default connection. This validates that connect will work and sets up the parent accessor to clone.- Overrides:
startUp
in classConnectionPool
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