uk.ac.ic.doc.automed.util.db
Class QueryCacheSQLAdapter

java.lang.Object
  uk.ac.ic.doc.automed.util.db.DBAccess
      uk.ac.ic.doc.automed.util.db.DBEmbedded
          uk.ac.ic.doc.automed.util.db.QueryCacheSQLAdapter

All Implemented Interfaces:

PersistentHandler

public class QueryCacheSQLAdapter
extends DBEmbedded
implements PersistentHandler

QueryCacheSQLAdapter.java Bridges between PersistentHandler and DBEmbedded

Author:

Duc M Le dmle@doc.ic.ac.uk

Field Summary

Fields inherited from class uk.ac.ic.doc.automed.util.db.DBAccess

connections, dbFQPath, password, props, user

Constructor Summary

protected

QueryCacheSQLAdapter(java.lang.String dbFQPath, java.lang.String user, java.lang.String password, java.util.Properties props) Creates a new instance of DBAccessAdapter

Method Summary

void	close() Close the database
java.lang.Object	get(PersistentKey pkey) Get the first (or unique) data entry found for key
java.util.Iterator	iterator() Return an iterator of the entry set
void	put(PersistentKey pkey, java.lang.Object value) Place a data object into db
void	remove(PersistentKey pkey) Remove a single record identified by a common key from the database
void	removeAll() Clear database content

Methods inherited from class uk.ac.ic.doc.automed.util.db.DBEmbedded

commit, executeCommand, executeQuery, executeStatement, getConnection, getDBInstance, isTableExist, newConnection, printResultSet, setAutoCommit, shutdown

Methods inherited from class uk.ac.ic.doc.automed.util.db.DBAccess

closeConnection, getCurrentRow

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryCacheSQLAdapter

protected QueryCacheSQLAdapter(java.lang.String dbFQPath,
                               java.lang.String user,
                               java.lang.String password,
                               java.util.Properties props)
                        throws DBInstanceException

Creates a new instance of DBAccessAdapter

Throws:

DBInstanceException

Method Detail

put

public void put(PersistentKey pkey,
                java.lang.Object value)

Place a data object into db

Specified by:

put in interface PersistentHandler

get

public java.lang.Object get(PersistentKey pkey)

Get the first (or unique) data entry found for key

Specified by:

get in interface PersistentHandler

remove

public void remove(PersistentKey pkey)

Remove a single record identified by a common key from the database

Specified by:

remove in interface PersistentHandler

iterator

public java.util.Iterator iterator()

Return an iterator of the entry set

Specified by:

iterator in interface PersistentHandler

removeAll

public void removeAll()

Clear database content

Specified by:

removeAll in interface PersistentHandler

close

public void close()

Close the database

Specified by:

close in interface PersistentHandler