DatabaseConnection

java.lang.Object
- weka.experiment.DatabaseUtils
- - weka.core.converters.DatabaseConnection

All Implemented Interfaces:

java.io.Serializable, RevisionHandler
```
public class DatabaseConnection
extends DatabaseUtils
```
Connects to a database.

Version:

$Revision: 1.8 $

Author:

Len Trigg (trigg@cs.waikato.ac.nz), Stefan Mutter (mutter@cs.waikato.ac.nz)

See Also:

Serialized Form

Field Summary
- Fields inherited from class weka.experiment.DatabaseUtils
  BOOL, BYTE, DATE, DOUBLE, EXP_INDEX_TABLE, EXP_RESULT_COL, EXP_RESULT_PREFIX, EXP_SETUP_COL, EXP_TYPE_COL, FLOAT, INTEGER, LONG, PROPERTY_FILE, SHORT, STRING, TEXT, TIME, TIMESTAMP

Constructor Summary

Constructors
Constructor Description

DatabaseConnection()
Sets up the database drivers

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.sql.DatabaseMetaData`	`getMetaData()`	Gets meta data for the database connection object.
`java.lang.String`	`getRevision()`	Returns the revision string.
`int`	`getUpdateCount()`	Dewtermines if the current query retrieves a result set or updates a table
`boolean`	`getUpperCase()`	Check if the property checkUpperCaseNames in the DatabaseUtils file is set to true or false.

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - DatabaseConnection
```
public DatabaseConnection()
                   throws java.lang.Exception
```
    Sets up the database drivers
    
    Throws:
    
    java.lang.Exception - if an error occurs
- Method Detail
  - getUpperCase
```
public boolean getUpperCase()
```
    Check if the property checkUpperCaseNames in the DatabaseUtils file is set to true or false.
    
    Returns:
    
    true if the property checkUpperCaseNames in the DatabaseUtils file is set to true, false otherwise.
  - getMetaData
```
public java.sql.DatabaseMetaData getMetaData()
                                      throws java.lang.Exception
```
    Gets meta data for the database connection object.
    
    Returns:
    
    the meta data.
    
    Throws:
    
    java.lang.Exception - if an error occurs
  - getUpdateCount
```
public int getUpdateCount()
                   throws java.sql.SQLException
```
    Dewtermines if the current query retrieves a result set or updates a table
    
    Returns:
    
    the update count (-1 if the query retrieves a result set).
    
    Throws:
    
    java.sql.SQLException - if an error occurs
  - getRevision
```
public java.lang.String getRevision()
```
    Returns the revision string.
    
    Specified by:
    
    getRevision in interface RevisionHandler
    
    Overrides:
    
    getRevision in class DatabaseUtils
    
    Returns:
    
    the revision