org.fosstrak.llrp.client.repository.sql
Class PostgreSQLRepository

java.lang.Object
  org.fosstrak.llrp.client.repository.sql.AbstractSQLRepository
      org.fosstrak.llrp.client.repository.sql.PostgreSQLRepository

All Implemented Interfaces:

Repository

public class PostgreSQLRepository
extends AbstractSQLRepository

The PostgreSQLRepository provides the basis for a PostgreSQL repository back-end. The SQL-server is accessed via the PostgreSQL-JDBC connector.

NOTICE:

We share most SQL statements with the Derby implementation of the SQL repository. However, the statement to create the LLRP messages table, and the way how the connection gets established, differ.
The user credentials as well as the JDBC connector URL are both obtained from the eclipse preference store (The user can configure the settings in the Preferences page in the tab LLRP-Commander).

Author:

sawielan

Field Summary

protected java.lang.String	DBDRIVER the PostgreSQL JDBC driver.
static java.lang.String	JDBC_STR default JDBC Connector URL.
protected DerbyROAccessReportsRepository	repoROAccessReports

Fields inherited from class org.fosstrak.llrp.client.repository.sql.AbstractSQLRepository

args, conn, connectURL, DB_DRIVER, DB_NAME, isHealth, logROAccess, NUM_TABLE_COLUMNS, password, SELECTOR_ADAPTOR, SELECTOR_COMMENT, SELECTOR_CONTENT, SELECTOR_ID, SELECTOR_MARK, SELECTOR_MESSAGE_TYPE, SELECTOR_READER, SELECTOR_STATUS, SELECTOR_TIMESTAMP, TABLE_LLRP_REPOSITORY, username, wipe, wipeROAccess

Fields inherited from interface org.fosstrak.llrp.client.Repository

RETRIEVE_ALL

Constructor Summary

PostgreSQLRepository()

Method Summary

protected java.lang.String	getDBDriver() Returns the class name of the JDBC driver to be used.
ROAccessReportsRepository	getROAccessRepository() The ROAccessReportsRepository is implemented via the strategy pattern.
protected java.sql.Connection	openConnection() Opens the JDBC connection to the database.
protected java.lang.String	sqlCreateTable() NOTICE: this SQL command corresponds to derby SQL!.

Methods inherited from class org.fosstrak.llrp.client.repository.sql.AbstractSQLRepository

clearAdapter, clearAll, clearReader, close, count, createTable, dropTable, existsTable, get, get, getArgs, getDBConnection, initialize, isHealth, loadDriver, put, sqlDropTable, sqlInsertMessage, sqlRemoveAllAdapterMessages, sqlRemoveAllMessages, sqlRemoveAllReaderMessages, sqlSelectByAdapterAndReaderWithContent, sqlSelectByAdapterAndReaderWithoutContent, sqlSelectByAdapterWithContent, sqlSelectByAdapterWithoutContent, sqlSelectMessageByID, sqlSelectMessagesWithContent, sqlSelectMessagesWithoutContent

Methods inherited from class java.lang.Object

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

Field Detail

DBDRIVER

protected final java.lang.String DBDRIVER

the PostgreSQL JDBC driver.

See Also:

Constant Field Values

repoROAccessReports

protected DerbyROAccessReportsRepository repoROAccessReports

JDBC_STR

public static final java.lang.String JDBC_STR

default JDBC Connector URL. PostgreSQL needs all lower case

Constructor Detail

PostgreSQLRepository

public PostgreSQLRepository()

Method Detail

getDBDriver

protected java.lang.String getDBDriver()

Description copied from class: AbstractSQLRepository

Returns the class name of the JDBC driver to be used. NOTICE : you should override this method if you use a database other than derby.

Overrides:

getDBDriver in class AbstractSQLRepository

Returns:

a class name of the JDBC driver to be used.

openConnection

protected java.sql.Connection openConnection()
                                      throws java.lang.Exception

Description copied from class: AbstractSQLRepository

Opens the JDBC connection to the database.

Specified by:

openConnection in class AbstractSQLRepository

Returns:

a handle to the Connection item.

Throws:

java.lang.Exception - whenever the connection could not be established.

sqlCreateTable

protected java.lang.String sqlCreateTable()

Description copied from class: AbstractSQLRepository

NOTICE: this SQL command corresponds to derby SQL!.

Overrides:

sqlCreateTable in class AbstractSQLRepository

Returns:

a SQL command that creates the table.

getROAccessRepository

public ROAccessReportsRepository getROAccessRepository()

Description copied from interface: Repository

The ROAccessReportsRepository is implemented via the strategy pattern. Depending on the type of the repository, you will get a different implementation of this handle at runtime. The respective implementation will setup the data-structures used to log RO_ACCESS_REPORTS and ease the access to the stored information.

Returns:

a handle to the RO_ACCESS_REPORTS repository. if the implementation of the repository does not implement this functionality, it shall return null.