com.jenkov.mrpersister.impl.mapping
Class DbNameDeterminer

java.lang.Object
  com.jenkov.mrpersister.impl.mapping.DbNameDeterminer

All Implemented Interfaces:

IDbNameDeterminer

public class DbNameDeterminer
extends java.lang.Object
implements IDbNameDeterminer

Field Summary

protected java.util.Map	tableColumnSets
protected java.util.Map	tableColumnTypes

Constructor Summary

DbNameDeterminer()

Method Summary

java.lang.String	determineColumnName(java.util.Collection names, java.lang.String tableName, java.sql.Connection connection) Determines which, if any, of the given possible column names in the given collection is matching a column name in the given table.
java.lang.String	determineTableName(java.util.Collection names, java.sql.Connection connection) Determines which, if any, of the given possible table names in the given collection is matching a table name in the database.
java.lang.String	determineTableName(java.util.Collection names, java.lang.String databaseName, java.sql.Connection connection) Determines which, if any, of the given possible table names in the given collection is matching a table name in the database.
int	getColumnType(java.lang.String columnName, java.lang.String tableName) Returns the type for a given column in a given table.
void	init()

Methods inherited from class java.lang.Object

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

Field Detail

tableColumnSets

protected java.util.Map tableColumnSets

tableColumnTypes

protected java.util.Map tableColumnTypes

Constructor Detail

DbNameDeterminer

public DbNameDeterminer()

Method Detail

init

public void init()

getColumnType

public int getColumnType(java.lang.String columnName,
                         java.lang.String tableName)

Description copied from interface: IDbNameDeterminer

Returns the type for a given column in a given table. Note, this method only works if the determineColumnName worked (returned a name != null)

Specified by:

getColumnType in interface IDbNameDeterminer

Parameters:

columnName - The name of the column to get the data type for.

tableName - The name of the table where the column is defined.

Returns:

An int matching one of the java.sql.Types.XXX type constants.

determineColumnName

public java.lang.String determineColumnName(java.util.Collection names,
                                            java.lang.String tableName,
                                            java.sql.Connection connection)
                                     throws PersistenceException

Description copied from interface: IDbNameDeterminer

Determines which, if any, of the given possible column names in the given collection is matching a column name in the given table. If no column name is matching any of the names in the collection null is returned. If more than one of the possible column names matches a column in the table, a PersistenceException is thrown.

Specified by:

determineColumnName in interface IDbNameDeterminer

Parameters:

names - The collection of possible column names.

tableName - The name of the database table to check for column matches in.

connection - The connection to the database to determine column name in.

Returns:

The matching column name. Null if no matching column name was found.

Throws:

PersistenceException - If anything goes wrong during the name determining, or if more than one of the possible column names matches a column in the table.

determineTableName

public java.lang.String determineTableName(java.util.Collection names,
                                           java.sql.Connection connection)
                                    throws PersistenceException

Description copied from interface: IDbNameDeterminer

Determines which, if any, of the given possible table names in the given collection is matching a table name in the database. If no table name is matching any of the names in the collection a PersistenceException is thrown. If more than one of the possible table names matches a table in the database a PersistenceException is also thrown.

Specified by:

determineTableName in interface IDbNameDeterminer

Parameters:

names - The collection of possible table names.

connection - The connection to the database to determine table name in.

Returns:

The matching table name.

Throws:

PersistenceException - If anything goes wrong during the name determining, or if none or more than one of the possible table names matches a table in the database.

determineTableName

public java.lang.String determineTableName(java.util.Collection names,
                                           java.lang.String databaseName,
                                           java.sql.Connection connection)
                                    throws PersistenceException

Description copied from interface: IDbNameDeterminer

Determines which, if any, of the given possible table names in the given collection is matching a table name in the database. If no table name is matching any of the names in the collection a PersistenceException is thrown. If more than one of the possible table names matches a table in the database a PersistenceException is also thrown.

Specified by:

determineTableName in interface IDbNameDeterminer

Parameters:

names - The collection of possible table names.

databaseName - The name of the database. Set to null if not known. The database name is usually implicitly referenced in the database connection, so you most often won't need to set this parameter to anything but null.

connection - The connection to the database to determine table name in.

Returns:

The matching table name.

Throws:

PersistenceException - If anything goes wrong during the name determining, or if none or more than one of the possible table names matches a table in the database.