org.apache.openjpa.jdbc.sql
Class DBDictionaryFactory

java.lang.Object
  org.apache.openjpa.jdbc.sql.DBDictionaryFactory

public class DBDictionaryFactory
extends Object

Factory class to instantiate a dictionary. It will use the following heuristic:

• Check to see if there is a DictionaryClass property, and if so, use that to instantiate the dictionary.
• Check the URL in the JDBCConfiguration against a list of pre-defined URLs for various dictionaries.
• Check the driver in the JDBCConfiguration against a list of known patterns.
• Acquire a connection and check its database metadata.
• Return an instance of the generic DBDictionary.

Author:

Marc Prud'hommeaux

Constructor Summary

DBDictionaryFactory()

Method Summary

static DBDictionary	calculateDBDictionary(JDBCConfiguration conf, String url, String driver, String props) Attempt to create the dictionary from the given connection URL and driver name, either or both of which may be null.
(package private) static String	getProtocol(String url)
static DBDictionary	newDBDictionary(JDBCConfiguration conf, DataSource ds, String props) Create the dictionary using connection metadata to determine its type.
static DBDictionary	newDBDictionary(JDBCConfiguration conf, String dclass, String props) Create the dictionary for the given class name and properties.
static String	toString(DatabaseMetaData meta) Return a string containing all the property values of the given database metadata.

Methods inherited from class java.lang.Object

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

Constructor Detail

DBDictionaryFactory

public DBDictionaryFactory()

Method Detail

newDBDictionary

public static DBDictionary newDBDictionary(JDBCConfiguration conf,
                                           String dclass,
                                           String props)

Create the dictionary for the given class name and properties.

calculateDBDictionary

public static DBDictionary calculateDBDictionary(JDBCConfiguration conf,
                                                 String url,
                                                 String driver,
                                                 String props)

Attempt to create the dictionary from the given connection URL and driver name, either or both of which may be null. If the dictionary cannot be calculated, returns null.

newDBDictionary

public static DBDictionary newDBDictionary(JDBCConfiguration conf,
                                           DataSource ds,
                                           String props)

Create the dictionary using connection metadata to determine its type.

getProtocol

static String getProtocol(String url)

toString

public static String toString(DatabaseMetaData meta)
                       throws SQLException

Return a string containing all the property values of the given database metadata.

Throws:

SQLException