org.apache.derby.client.am

Class LogicalConnection40

java.lang.Object

org.apache.derby.client.am.LogicalConnection

org.apache.derby.client.am.LogicalConnection40

All Implemented Interfaces:

java.lang.AutoCloseable, java.sql.Connection, java.sql.Wrapper

Direct Known Subclasses:

CachingLogicalConnection40

public class LogicalConnection40
extends LogicalConnection

A simple delegation wrapper handle for a physical connection. This class only contains JDBC 4.0 specific methods. NOTE: All non-implemented JDBC 4.0 methods are located here, but when they are implemented, they should be moved to the superclass if possible.

Field Summary

Fields inherited from class org.apache.derby.client.am.LogicalConnection

physicalConnection_

Fields inherited from interface java.sql.Connection

TRANSACTION_NONE, TRANSACTION_READ_COMMITTED, TRANSACTION_READ_UNCOMMITTED, TRANSACTION_REPEATABLE_READ, TRANSACTION_SERIALIZABLE

Constructor Summary

Constructors

Constructor and Description
LogicalConnection40(Connection physicalConnection, ClientPooledConnection pooledConnection)

Method Summary

Modifier and Type	Method and Description
void	abort(java.util.concurrent.Executor executor)
java.sql.Array	createArrayOf(java.lang.String typeName, java.lang.Object[] elements)
java.sql.Blob	createBlob()
java.sql.Clob	createClob()
java.sql.NClob	createNClob()
java.sql.SQLXML	createSQLXML()
java.sql.Struct	createStruct(java.lang.String typeName, java.lang.Object[] attributes)
java.util.Properties	getClientInfo() getClientInfo forwards to physicalConnection_.
java.lang.String	getClientInfo(java.lang.String name) getClientInfo forwards to physicalConnection_.
int	getNetworkTimeout()
boolean	isValid(int timeout) Checks if the connection has not been closed and is still valid.
boolean	isWrapperFor(java.lang.Class<?> interfaces)
protected LogicalDatabaseMetaData	newLogicalDatabaseMetaData() Returns a newly created logical database metadata object.
void	setClientInfo(java.util.Properties properties) setClientInfo forwards to physicalConnection_.
void	setClientInfo(java.lang.String name, java.lang.String value) setClientInfo forwards to physicalConnection_.
void	setNetworkTimeout(java.util.concurrent.Executor executor, int milliseconds)
<T> T	unwrap(java.lang.Class<T> interfaces)

Methods inherited from class org.apache.derby.client.am.LogicalConnection

checkForNullPhysicalConnection, clearWarnings, close, closeWithoutRecyclingToPool, commit, createStatement, createStatement, createStatement, finalize, getAutoCommit, getCatalog, getHoldability, getMetaData, getRealMetaDataObject, getSchema, getServerVersion, getTransactionID, getTransactionIsolation, getTypeMap, getWarnings, isClosed, isReadOnly, nativeSQL, notifyException, nullPhysicalConnection, prepareCall, prepareCall, prepareCall, preparePositionedUpdateStatement, prepareStatement, prepareStatement, prepareStatement, prepareStatement, prepareStatement, prepareStatement, releaseSavepoint, rollback, rollback, setAutoCommit, setCatalog, setHoldability, setReadOnly, setSavepoint, setSavepoint, setSchema, setTransactionIsolation, setTypeMap

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LogicalConnection40

public LogicalConnection40(Connection physicalConnection,
                           ClientPooledConnection pooledConnection)
                    throws SqlException

Throws:

SqlException

Method Detail

createArrayOf

public java.sql.Array createArrayOf(java.lang.String typeName,
                                    java.lang.Object[] elements)
                             throws java.sql.SQLException

Throws:

java.sql.SQLException

createBlob

public java.sql.Blob createBlob()
                         throws java.sql.SQLException

Throws:

java.sql.SQLException

createClob

public java.sql.Clob createClob()
                         throws java.sql.SQLException

Throws:

java.sql.SQLException

createNClob

public java.sql.NClob createNClob()
                           throws java.sql.SQLException

Throws:

java.sql.SQLException

createSQLXML

public java.sql.SQLXML createSQLXML()
                             throws java.sql.SQLException

Throws:

java.sql.SQLException

createStruct

public java.sql.Struct createStruct(java.lang.String typeName,
                                    java.lang.Object[] attributes)
                             throws java.sql.SQLException

Throws:

java.sql.SQLException

getClientInfo

public java.util.Properties getClientInfo()
                                   throws java.sql.SQLException

getClientInfo forwards to physicalConnection_. getClientInfo always returns an empty Properties object since Derby doesn't support ClientInfoProperties.

Returns:

an empty Properties object

Throws:

java.sql.SQLException - if an error occurs

getClientInfo

public java.lang.String getClientInfo(java.lang.String name)
                               throws java.sql.SQLException

getClientInfo forwards to physicalConnection_. Always returns a null String since Derby does not support ClientInfoProperties.

Parameters:

name - a property key to get String

Returns:

a property value String

Throws:

java.sql.SQLException - if an error occurs

newLogicalDatabaseMetaData

protected LogicalDatabaseMetaData newLogicalDatabaseMetaData()
                                                      throws java.sql.SQLException

Returns a newly created logical database metadata object.

Overrides:

newLogicalDatabaseMetaData in class LogicalConnection

Returns:

A logical database metadata object for JDBC 4 environments.

Throws:

java.sql.SQLException

isValid

public boolean isValid(int timeout)
                throws java.sql.SQLException

Checks if the connection has not been closed and is still valid. The validity is checked by running a simple query against the database.

Parameters:

timeout - The time in seconds to wait for the database operation used to validate the connection to complete. If the timeout period expires before the operation completes, this method returns false. A value of 0 indicates a timeout is not applied to the database operation.

Returns:

true if the connection is valid, false otherwise

Throws:

java.sql.SQLException - if the call on the physical connection throws an exception.

isWrapperFor

public boolean isWrapperFor(java.lang.Class<?> interfaces)
                     throws java.sql.SQLException

Throws:

java.sql.SQLException

setClientInfo

public void setClientInfo(java.util.Properties properties)
                   throws java.sql.SQLClientInfoException

setClientInfo forwards to physicalConnection_.

Parameters:

properties - a Properties object with the properties to set

Throws:

java.sql.SQLClientInfoException - if an error occurs

setClientInfo

public void setClientInfo(java.lang.String name,
                          java.lang.String value)
                   throws java.sql.SQLClientInfoException

setClientInfo forwards to physicalConnection_.

Parameters:

name - a property key String

value - a property value String

Throws:

java.sql.SQLClientInfoException - if an error occurs

unwrap

public <T> T unwrap(java.lang.Class<T> interfaces)
             throws java.sql.SQLException

Throws:

java.sql.SQLException

abort

public void abort(java.util.concurrent.Executor executor)
           throws java.sql.SQLException

Throws:

java.sql.SQLException

getNetworkTimeout

public int getNetworkTimeout()
                      throws java.sql.SQLException

Throws:

java.sql.SQLException

setNetworkTimeout

public void setNetworkTimeout(java.util.concurrent.Executor executor,
                              int milliseconds)
                       throws java.sql.SQLException

Throws:

java.sql.SQLException