org.apache.log.output.db

Class DefaultJDBCTarget

java.lang.Object

org.apache.log.output.AbstractTarget

org.apache.log.output.db.AbstractJDBCTarget

org.apache.log.output.db.DefaultJDBCTarget

All Implemented Interfaces:

ErrorAware, LogTarget, Closeable

Direct Known Subclasses:

NormalizedJDBCTarget

public class DefaultJDBCTarget
extends AbstractJDBCTarget

The basic DB target for configurable output formats.

Author:

Avalon Development Team, Peter Donald

Constructor Summary

Constructors

Constructor and Description
DefaultJDBCTarget(DataSource dataSource, String table, ColumnInfo[] columns) Creation of a new JDBC logging target.

Method Summary

Modifier and Type	Method and Description
protected void	closeConnection() Close connection to underlying database.
protected ColumnInfo	getColumn(int index) Return the column info for an supplied index.
protected String	getStatementSQL() Return the SQL insert statement.
protected String	getTable() Return the underlying table
protected boolean	isStale() Test if the target is stale.
protected void	openConnection() Open connection to underlying database.
protected void	output(LogEvent event) Output a log event to DB.
protected void	specifyColumn(PreparedStatement statement, int index, LogEvent event) Adds a single object into statement.

Methods inherited from class org.apache.log.output.db.AbstractJDBCTarget

checkConnection, close, doProcessEvent, getConnection, open

Methods inherited from class org.apache.log.output.AbstractTarget

getErrorHandler, isOpen, processEvent, setErrorHandler

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultJDBCTarget

public DefaultJDBCTarget(DataSource dataSource,
                         String table,
                         ColumnInfo[] columns)

Creation of a new JDBC logging target.

Parameters:

dataSource - the JDBC datasource

table - the table

columns - a ColumnInfo array

Method Detail

output

protected void output(LogEvent event)

Output a log event to DB. This must be implemented by subclasses.

Specified by:

output in class AbstractJDBCTarget

Parameters:

event - the log event.

openConnection

protected void openConnection()

Open connection to underlying database.

Overrides:

openConnection in class AbstractJDBCTarget

getStatementSQL

protected String getStatementSQL()

Return the SQL insert statement.

Returns:

the statement

isStale

protected boolean isStale()

Test if the target is stale.

Overrides:

isStale in class AbstractJDBCTarget

Returns:

TRUE if the target is stale else FALSE

closeConnection

protected void closeConnection()

Close connection to underlying database.

Overrides:

closeConnection in class AbstractJDBCTarget

specifyColumn

protected void specifyColumn(PreparedStatement statement,
                             int index,
                             LogEvent event)
                      throws SQLException,
                             IllegalStateException

Adds a single object into statement.

Parameters:

statement - the prepard statement

index - the index

event - the log event

Throws:

SQLException - if an SQL related error occurs

IllegalStateException - if the supplied index is out of bounds

getTable

protected final String getTable()

Return the underlying table

Returns:

the table name

getColumn

protected final ColumnInfo getColumn(int index)

Return the column info for an supplied index.

Parameters:

index - the index

Returns:

the column info