com.conveyal.gtfs.loader

Class JdbcGtfsSnapshotter

java.lang.Object

com.conveyal.gtfs.loader.JdbcGtfsSnapshotter

public class JdbcGtfsSnapshotter
extends Object

This class takes a feedId that represents a feed already in the database and creates a copy of the entire feed. All tables except for the derived error and service tables are copied over (the derived pattern and pattern stop tables ARE copied over). This copy functionality is intended to make the feed editable and so the resulting feed tables are somewhat modified from their original read-only source. For instance, the ID column has been modified so that it is an auto-incrementing serial integer, changing the meaning of the column from csv_line (for feeds loaded from GTFS) to a unique identifier used to reference entities in an API.

Constructor Summary

Constructors

Constructor and Description
JdbcGtfsSnapshotter(String feedId, DataSource dataSource)

Method Summary

Modifier and Type	Method and Description
SnapshotResult	copyTables() Copy primary entity tables as well as Pattern and PatternStops tables.

Methods inherited from class java.lang.Object

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

Constructor Detail

JdbcGtfsSnapshotter

public JdbcGtfsSnapshotter(String feedId,
                           DataSource dataSource)

Parameters:

feedId - namespace (schema) to snapshot. If null, a blank snapshot will be created.

dataSource - the JDBC data source with database connection details

Method Detail

copyTables

public SnapshotResult copyTables()

Copy primary entity tables as well as Pattern and PatternStops tables.