Package weka.gui.sql.event

Class QueryExecuteEvent

java.lang.Object

java.util.EventObject

weka.gui.sql.event.QueryExecuteEvent

All Implemented Interfaces:

Serializable

public class QueryExecuteEvent
extends EventObject

An event that is generated when a query is executed.

Version:

$Revision: 8034 $

Author:

FracPete (fracpete at waikato dot ac dot nz)

See Also:

• QueryExecuteListener
• Serialized Form

Constructor Summary

Constructors

Constructor	Description
QueryExecuteEvent(Object source, DbUtils utils, String query, int rows, ResultSet rs, Exception ex)	constructs the event

Method Summary

Modifier and Type	Method	Description
boolean	failed()	is TRUE in case the exception is not NULL, i.e.
DbUtils	getDbUtils()	returns the DbUtils instance that was executed the query
Exception	getException()	returns the exception, if one happened, otherwise NULL
int	getMaxRows()	returns the maximum number of rows to retrieve.
String	getQuery()	returns the query that was executed
ResultSet	getResultSet()	returns the resultset that was produced, can be null in case the query failed
boolean	hasResult()	whether a ResultSet was produced, e.g.
String	toString()	returns the event in a string representation

Methods inherited from class java.util.EventObject

getSource

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

QueryExecuteEvent

public QueryExecuteEvent(Object source,
 DbUtils utils,
 String query,
 int rows,
 ResultSet rs,
 Exception ex)

constructs the event

Parameters:

source - the source that generated this event

utils - the DbUtils instance that connected to the DB

query - the query that is the basis for the resultset

rows - the maximum number of rows to retrieve (0 for all)

rs - the ResultSet that was produced (depending on the type of SQL query it can also be NULL)

ex - in case an exception occurred

Method Details

getDbUtils

public DbUtils getDbUtils()

returns the DbUtils instance that was executed the query

getQuery

public String getQuery()

returns the query that was executed

getMaxRows

public int getMaxRows()

returns the maximum number of rows to retrieve. 0 means all.

failed

public boolean failed()

is TRUE in case the exception is not NULL, i.e. the query failed

hasResult

public boolean hasResult()

whether a ResultSet was produced, e.g. DDL commands like delete, drop or update do not produce one.

getResultSet

public ResultSet getResultSet()

returns the resultset that was produced, can be null in case the query failed

getException

public Exception getException()

returns the exception, if one happened, otherwise NULL

toString

public String toString()

returns the event in a string representation

Overrides:

toString in class EventObject

Returns:

the event in a string representation