org.apache.avalon.excalibur.datasource.cluster
Interface IndexedDataSourceCluster

All Superinterfaces:

Component, Configurable, DataSourceComponent, ThreadSafe

All Known Implementing Classes:

DefaultIndexedDataSourceCluster

public interface IndexedDataSourceCluster
extends DataSourceComponent

Since:

4.1

Version:

CVS $Revision: 1.4 $ $Date: 2004/02/28 11:47:20 $

Author:

Avalon Development Team

Field Summary

static String

ROLE The name of the role for convenience

Method Summary

int	getClusterSize() Returns the number of DataSources in the cluster.
Connection	getConnectionForIndex(int index) Gets a Connection to a database given an index.

Methods inherited from interface org.apache.avalon.excalibur.datasource.DataSourceComponent

getConnection

Methods inherited from interface org.apache.avalon.framework.configuration.Configurable

configure

Field Detail

ROLE

static final String ROLE

The name of the role for convenience

Method Detail

getClusterSize

int getClusterSize()

Returns the number of DataSources in the cluster.

Returns:

size of the cluster.

getConnectionForIndex

Connection getConnectionForIndex(int index)
                                 throws SQLException

Gets a Connection to a database given an index.

Parameters:

index - Index of the DataSource for which a connection is to be returned.

Throws:

NoValidConnectionException - when there is no valid Connection wrapper available in the classloader or when the index is not valid.

NoAvailableConnectionException - when there are no more available Connections in the pool.

SQLException