org.aksw.jena_sparql_api.cache.staging

Class CacheBackendDaoPostgres

java.lang.Object

org.aksw.jena_sparql_api.cache.staging.CacheBackendDaoPostgres

All Implemented Interfaces:

CacheBackendDao

public class CacheBackendDaoPostgres
extends Object
implements CacheBackendDao

Constructor Summary

Constructors

Constructor and Description
CacheBackendDaoPostgres()
CacheBackendDaoPostgres(long timeToLive)

Method Summary

Methods

Modifier and Type	Method and Description
String	createHashRoot(String service, String queryString)
CacheEntryImpl	lookup(Connection conn, String service, String queryString, boolean closeConn) The lookup returns an InputStream + metadata
void	write(Connection conn, String service, String queryString, InputStream in)

Methods inherited from class java.lang.Object

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

Constructor Detail

CacheBackendDaoPostgres

public CacheBackendDaoPostgres()

CacheBackendDaoPostgres

public CacheBackendDaoPostgres(long timeToLive)

Method Detail

lookup

public CacheEntryImpl lookup(Connection conn,
                    String service,
                    String queryString,
                    boolean closeConn)
                      throws SQLException

Description copied from interface: CacheBackendDao

The lookup returns an InputStream + metadata

Specified by:

lookup in interface CacheBackendDao

closeConn - Whether to close the connection when the inputStream is closed or consumed

Returns:

Throws:

SQLException

write

public void write(Connection conn,
         String service,
         String queryString,
         InputStream in)
           throws SQLException,
                  IOException

Specified by:

write in interface CacheBackendDao

Throws:

SQLException

IOException

createHashRoot

public String createHashRoot(String service,
                    String queryString)