org.mule.db.commons.internal.domain.connection

Class DefaultDbConnection

java.lang.Object

org.mule.db.commons.internal.domain.connection.DefaultDbConnection

All Implemented Interfaces:

DbConnection, org.mule.runtime.extension.api.connectivity.TransactionalConnection, org.mule.runtime.extension.api.tx.Transactional

public class DefaultDbConnection
extends Object
implements DbConnection

Field Summary

Fields

Modifier and Type	Field and Description
protected static org.slf4j.Logger	logger
protected static int	UNKNOWN_DATA_TYPE

Constructor Summary

Constructors

Constructor and Description
DefaultDbConnection(Connection jdbcConnection, List<DbType> customDataTypes)

Method Summary

Modifier and Type	Method and Description
void	begin()
void	beginStreaming() Starts streaming.
void	commit()
Array	createArrayOf(String typeName, Object[] elements) Creates an Array of the given typeName with the given values
Struct	createStruct(String typeName, Object[] attributes) Creates an Struct of the given typeName with the given values
void	doResolveLobIn(Object[] attributes, int index, int dataType, String dataTypeName)
void	doResolveLobIn(Object[] attributes, int index, String dataTypeName)
void	endStreaming() Marks that the streaming is over
List<DbType>	getCustomDataTypes()
Connection	getJdbcConnection()
protected Map<Integer,ResolvedDbType>	getLobFieldsDataTypeInfo(String typeName)
DatabaseMetaData	getMetaData()
StatementResultIteratorFactory	getStatementResultIteratorFactory(ResultSetHandler resultSetHandler) Returns the StatementResultIteratorFactory used to create the StatementResultIterator for this connection.
List<DbType>	getVendorDataTypes()
boolean	isStreaming()
boolean	isTransactionActive()
PreparedStatement	prepareStatement(String sql)
void	release() Closes the underlying JDBC connection, provided that DbConnection.isStreaming() is false
protected void	resolveLobs(String typeName, Object[] attributes, StructAndArrayTypeResolver typeResolver)
void	rollback()
boolean	supportsContentStreaming()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.mule.db.commons.internal.domain.connection.DbConnection

createArrayOf, getProcedureColumns, getProcedureColumnType, getTables

Field Detail

UNKNOWN_DATA_TYPE

protected static final int UNKNOWN_DATA_TYPE

See Also:

Constant Field Values

logger

protected static final org.slf4j.Logger logger

Constructor Detail

DefaultDbConnection

public DefaultDbConnection(Connection jdbcConnection,
                           List<DbType> customDataTypes)

Method Detail

getStatementResultIteratorFactory

public StatementResultIteratorFactory getStatementResultIteratorFactory(ResultSetHandler resultSetHandler)

Returns the StatementResultIteratorFactory used to create the StatementResultIterator for this connection.

Specified by:

getStatementResultIteratorFactory in interface DbConnection

Parameters:

resultSetHandler - used to process resultSets created from this connection

Returns:

the StatementResultIterator for this connection.

getVendorDataTypes

public List<DbType> getVendorDataTypes()

Specified by:

getVendorDataTypes in interface DbConnection

Returns:

A list of DbTypes which are specific to the Database vendor

getJdbcConnection

public Connection getJdbcConnection()

Specified by:

getJdbcConnection in interface DbConnection

Returns:

The underlying JDBC connection

getCustomDataTypes

public List<DbType> getCustomDataTypes()

Specified by:

getCustomDataTypes in interface DbConnection

Returns:

A list of customer defined DbTypes

begin

public void begin()
           throws org.mule.runtime.api.tx.TransactionException

Specified by:

begin in interface org.mule.runtime.extension.api.tx.Transactional

Throws:

org.mule.runtime.api.tx.TransactionException

commit

public void commit()
            throws org.mule.runtime.api.tx.TransactionException

Specified by:

commit in interface org.mule.runtime.extension.api.tx.Transactional

Throws:

org.mule.runtime.api.tx.TransactionException

rollback

public void rollback()
              throws org.mule.runtime.api.tx.TransactionException

Specified by:

rollback in interface org.mule.runtime.extension.api.tx.Transactional

Throws:

org.mule.runtime.api.tx.TransactionException

release

public void release()

Closes the underlying JDBC connection, provided that DbConnection.isStreaming() is false

Specified by:

release in interface DbConnection

beginStreaming

public void beginStreaming()

Description copied from interface: DbConnection

Starts streaming. Invoke this method when a streaming resultset generated with this connection is about to be iterated

Specified by:

beginStreaming in interface DbConnection

isStreaming

public boolean isStreaming()

Specified by:

isStreaming in interface DbConnection

Returns:

whether DbConnection.beginStreaming() has been invoked on this instance but DbConnection.endStreaming() has not

endStreaming

public void endStreaming()

Description copied from interface: DbConnection

Marks that the streaming is over

Specified by:

endStreaming in interface DbConnection

isTransactionActive

public boolean isTransactionActive()

Specified by:

isTransactionActive in interface DbConnection

Returns:

a boolean indicating if the current connection is being part of a Transaction.

supportsContentStreaming

public boolean supportsContentStreaming()

Specified by:

supportsContentStreaming in interface DbConnection

Returns:

a boolean indicating if the current connection supports to stream the fetched content

prepareStatement

public PreparedStatement prepareStatement(String sql)
                                   throws SQLException

Throws:

SQLException

createArrayOf

public Array createArrayOf(String typeName,
                           Object[] elements)
                    throws SQLException

Description copied from interface: DbConnection

Creates an Array of the given typeName with the given values

Specified by:

createArrayOf in interface DbConnection

Parameters:

typeName - The Array type name

elements - The values to convert to an Array

Returns:

The created Array

Throws:

SQLException - if an error occurs trying to create the array.

createStruct

public Struct createStruct(String typeName,
                           Object[] attributes)
                    throws SQLException

Description copied from interface: DbConnection

Creates an Struct of the given typeName with the given values

Specified by:

createStruct in interface DbConnection

Parameters:

typeName - The Struct type name

attributes - The values to convert to an Struct

Returns:

The created Struct

Throws:

SQLException - if an error occurs trying to create the struct.

getMetaData

public DatabaseMetaData getMetaData()
                             throws SQLException

Throws:

SQLException

resolveLobs

protected void resolveLobs(String typeName,
                           Object[] attributes,
                           StructAndArrayTypeResolver typeResolver)
                    throws SQLException

Throws:

SQLException

getLobFieldsDataTypeInfo

protected Map<Integer,ResolvedDbType> getLobFieldsDataTypeInfo(String typeName)
                                                        throws SQLException

Throws:

SQLException

doResolveLobIn

public void doResolveLobIn(Object[] attributes,
                           int index,
                           int dataType,
                           String dataTypeName)
                    throws SQLException

Throws:

SQLException

doResolveLobIn

public void doResolveLobIn(Object[] attributes,
                           int index,
                           String dataTypeName)
                    throws SQLException

Throws:

SQLException