org.formaria.data.sql
Interface ReplicationEngine

public interface ReplicationEngine

Implementator of this interface are used by the DataConnection class to perform database synchronization.

Method Summary

long	getNextId(java.lang.String tableName) Get the next ID for the named table, assuming one of the table's fields is a managed field.
long	getNextPseudoId(java.lang.String tableName) Get the next PSUEDOID for the names table
java.sql.ResultSet	synchronizeTable(java.lang.String tableName, int updateStrategy) Synchronizes the specified local database table.

Method Detail

synchronizeTable

java.sql.ResultSet synchronizeTable(java.lang.String tableName,
                                    int updateStrategy)

Synchronizes the specified local database table.

Parameters:

tableName - the name of the table

connName - the connection name

updateStrategy - the strategory used to udpate the database.

Returns:

a result set for a non cachable query or if the data has been cached and the result set contains the subset of data matches the query. Null is returned if the the server returns the full dataset and the query needs to be run against the local copy.

getNextPseudoId

long getNextPseudoId(java.lang.String tableName)

Get the next PSUEDOID for the names table

Parameters:

tableName - the table name whose ID is to be inspected

Returns:

the next ID or a negative value if invalid

getNextId

long getNextId(java.lang.String tableName)

Get the next ID for the named table, assuming one of the table's fields is a managed field.

Parameters:

tableName - the table name whose ID is to be inspected

Returns:

the next ID or a negative value if invalid