Package weka.core.converters
Class DatabaseConnection
- java.lang.Object
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- weka.experiment.DatabaseUtils
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- weka.core.converters.DatabaseConnection
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- 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
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Field Summary
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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
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Constructor Summary
Constructors Constructor Description DatabaseConnection()
Sets up the database drivers
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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 tableboolean
getUpperCase()
Check if the property checkUpperCaseNames in the DatabaseUtils file is set to true or false.-
Methods inherited from class weka.experiment.DatabaseUtils
arrayToString, close, close, connectToDatabase, createExperimentIndex, createExperimentIndexEntry, createResultsTable, databaseURLTipText, debugTipText, disconnectFromDatabase, execute, experimentIndexExists, getDatabaseURL, getDebug, getKeywords, getKeywordsMaskChar, getPassword, getResultFromTable, getResultSet, getResultsTableName, getSupportedCursorScrollType, getUsername, isConnected, isCursorScrollable, isCursorScrollSensitive, isKeyword, maskKeyword, passwordTipText, processKeyString, putResultInTable, select, setDatabaseURL, setDebug, setKeywords, setKeywordsMaskChar, setPassword, setUsername, tableExists, translateDBColumnType, typeName, update, usernameTipText
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Method Detail
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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.
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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
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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
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getRevision
public java.lang.String getRevision()
Returns the revision string.- Specified by:
getRevision
in interfaceRevisionHandler
- Overrides:
getRevision
in classDatabaseUtils
- Returns:
- the revision
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