net.sf.saffron.ext
Class JdbcConnection

java.lang.Object
  |
  +--net.sf.saffron.ext.JdbcConnection

All Implemented Interfaces:

SaffronConnection

public abstract class JdbcConnection

extends Object

implements SaffronConnection

A JdbcConnection is an implementation of SaffronConnection which gets its data from a JDBC database.

Derived classes must implement SaffronConnection.getSaffronSchema() and getSaffronSchemaStatic().

Since:

10 November, 2001

Version:

$Id: //open/saffron/src/net/sf/saffron/ext/JdbcConnection.java#3 $

Author:

jhyde

Field Summary

(package private) Connection

sqlConnection

Constructor Summary

JdbcConnection(Connection sqlConnection)

Method Summary

Object	contentsAsArray(String qualifier, String tableName) In theory, this method returns the contents of tableName as an array; in practice, it is a placeholder recognized by the optimizer to do something much more efficient.
Connection	getConnection()
static SaffronSchema	getSaffronSchemaStatic()
void	setConnection(Connection sqlConnection)

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.saffron.core.SaffronConnection

getSaffronSchema

Field Detail

sqlConnection

Connection sqlConnection

Constructor Detail

JdbcConnection

public JdbcConnection(Connection sqlConnection)

Method Detail

setConnection

public void setConnection(Connection sqlConnection)

getConnection

public Connection getConnection()

getSaffronSchemaStatic

public static SaffronSchema getSaffronSchemaStatic()

contentsAsArray

public Object contentsAsArray(String qualifier,
                              String tableName)

Description copied from interface: SaffronConnection

In theory, this method returns the contents of tableName as an array; in practice, it is a placeholder recognized by the optimizer to do something much more efficient. This involves calling SaffronSchema.getTableForMember(java.lang.String[])(qualifier,tableName).SaffronTable.toRel(net.sf.saffron.opt.VolcanoCluster, net.sf.saffron.core.SaffronConnection)(cluster, exp).

Specified by:

contentsAsArray in interface SaffronConnection